*BEGIN GRAPHICS VERSION=442/420 ENCODING=7BIT ** "Creator" brian ** "Creation Date" Mon Mar 1 13:34:35 2004 ** "Creation Version" 4.42 (1021.500) ** "Revisor" brian ** "Last Modified" Fri Dec 31 14:17:55 2004 ** "Last Modified Version" 4.42 (1021.500) FONT "Times" "Zapf Dingbats" "Swiss" "Morewingbats" "Dutch" "Courier" END FONT SESSION WIN_SIZE <7497 5202> AUTOGRID ON PAGEWID 11000 PAGEHYT 8500 PRINTWID 11000 PRINTHYT 8500 PRINTLAND ON SLIDE_STYLE <0 -1 1> BACKFILL <34 2 5 1000 0 0 0> LINEFILL <21 21 5 1000 0 0 0> SHADOW <11 0 15 15> FONT 2 REZ <1 611 611 -1136 -507> END SESSION SLIDE_MASTER S_EXT1 <105 85 9892 1923> S_EXT2 <105 2090 9892 7370> T_ATTR0 BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> END T_ATTR0 T_ATTR1 END T_ATTR1 S_ATTR0 BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 END S_ATTR0 S_ATTR1 END S_ATTR1 S_ATTR2 PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 END S_ATTR2 S_ATTR3 PARA <-500 1500 -500 1 1000 0 3 108> V_SPACE <28 333 0> SIZE 240000 END S_ATTR3 S_ATTR4 PARA <-500 2000 -500 1 1000 0 3 108> V_SPACE <28 306 0> SIZE 220000 END S_ATTR4 S_ATTR5 PARA <-500 2500 -500 1 1000 0 3 108> ITALICS ON END S_ATTR5 SLIDE_INFO SLIDE_STYLE <0 0 1> PAGE_BACKGD <0 0 1 17> C_SCHEME <7 7 20 20 21 21 34 2 23 27 44 12 1 0 0 0 0 0 0 0 0 0 0 11> END SLIDE_INFO .GRP BACKFILL <1 0 0 0 0 0 0> LINEFILL <1 2 5 1000 0 0 0> SHADOW <6 0 15 15> PARA <0 0 0 0 1000 1 0 111> V_SPACE <250 250 0> FONT 0 SIZE 180000 ITALICS OFF L_SPACE 250 MARGINS <125 125 250 62> END .GRP END SLIDE_MASTER HANDOUT_MASTER SLIDE_INFO SLIDE_STYLE <0 -1 1> END SLIDE_INFO .GRP END .GRP END HANDOUT_MASTER OUTLINE_MASTER SLIDE_INFO SLIDE_STYLE <0 -1 1> END SLIDE_INFO .GRP END .GRP END OUTLINE_MASTER NOTES_MASTER N_EXT1 <250 250 7249 4875> N_EXT2 <250 5125 7249 9749> N_ATTR0 BACKFILL <1 1 0 0 0 0 0> V_SPACE <28 250 0> FONT 4 MARGINS <0 0 0 0> END N_ATTR0 N_ATTR1 END N_ATTR1 N_ATTR2 PARA <0 500 0 0 1000 1 0 111> END N_ATTR2 N_ATTR3 PARA <0 1000 0 0 1000 1 0 111> END N_ATTR3 N_ATTR4 PARA <0 1500 0 0 1000 1 0 111> END N_ATTR4 N_ATTR5 PARA <0 2000 0 0 1000 1 0 111> END N_ATTR5 SLIDE_INFO SLIDE_STYLE <0 -1 1> END SLIDE_INFO .GRP BACKFILL <1 0 0 0 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <250 250 0> FONT 0 MARGINS <125 125 250 62> END .GRP END NOTES_MASTER SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 12 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (1260,233) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> LINEFILL <21 21 5 1000 0 0 0> SHADOW <11 0 15 15> V_SPACE <0 611 0> FONT 2 SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-24 448> T_PNTS (0,448)(0,0)(7431,0)(7431,579)(0,579)(0,448)(7431,448) H_SPACE 9788 .STR "Configuring IP forwarding" .TXT AT (3737,1752) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 PARA <0 0 0 0 1000 34 0 111> V_SPACE <0 333 0> SIZE 240000 BOLD OFF L_SPACE 333 TXTXYOFF <-26 243> T_PNTS (0,243)(0,0)(1999,0)(1999,584)(0,584)(0,243)(1999,243) H_SPACE 0 .STR L_SPACE 250 "Brian Candler\nNSRC" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 HOR_JUST LEFT MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (1582,236) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-45 438> T_PNTS (0,438)(0,0)(6805,0)(6805,1182)(0,1182)(0,438)(6805,438) H_SPACE 9788 .STR "Review of IP forwarding\n(internetworking)" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (76,2194) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <13 325> T_PNTS (0,325)(0,0)(9277,0)(9277,1812)(0,1812)(0,325)(9277,325) .STR "B and C are routers: they connect to multiple networks and forw ard traffic between them" .STR "\nWhy do we need routers? Why not just build one big ethernet L AN?" .LINE AT (1750,4998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 56 PARA <0 0 0 0 1000 34 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,500)(0,0) .LINE AT (3500,4998) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (1750,4998) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (3999,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (5749,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (3999,4999) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (6248,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (7998,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (6248,4999) RECOLOR ON PNTS (0,0)(1750,0) .RECT AT (1000,5498) RECOLOR ON THICKNESS 1 PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (1325,5786) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <1 358> T_PNTS (0,358)(0,0)(360,0)(360,359)(0,359)(0,358)(360,358) H_SPACE 0 .STR L_SPACE 250 "A" .RECT AT (3250,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (3611,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "B" .RECT AT (5500,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (5844,5773) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-19 366> T_PNTS (0,366)(0,0)(319,0)(319,378)(0,378)(0,366)(319,366) .STR L_SPACE 250 "C" .RECT AT (7750,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (8110,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "D" .TXT AT (2000,4738) RECOLOR ON V_SPACE <0 250 0> SIZE 180000 TXTXYOFF <-16 178> T_PNTS (0,178)(0,0)(1130,0)(1130,183)(0,183)(0,178)(1130,178) .STR "Network 1" .TXT AT (4325,4743) RECOLOR ON TXTXYOFF <-14 178> T_PNTS (0,178)(0,0)(1165,0)(1165,183)(0,183)(0,178)(1165,178) .STR "Network 2" .TXT AT (6578,4738) RECOLOR ON TXTXYOFF <-16 178> T_PNTS (0,178)(0,0)(1166,0)(1166,183)(0,183)(0,178)(1166,178) .STR "Network 3" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (1278,239) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-45 438> T_PNTS (0,438)(0,0)(7384,0)(7384,568)(0,568)(0,438)(7384,438) H_SPACE 9788 .STR "From the viewpoint of \"A\"" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (71,2195) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <13 317> T_PNTS (0,317)(0,0)(9074,0)(9074,1268)(0,1268)(0,317)(9074,317) .STR "\"A\" can communicate directly with \"B\"; they are on the same network." .STR "\nBut how can it send data to \"D\"?" .LINE AT (1750,4998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 56 PARA <0 0 0 0 1000 34 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,500)(0,0) .LINE AT (3500,4998) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (1750,4998) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (3999,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (5749,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (3999,4999) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (6248,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (7998,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (6248,4999) RECOLOR ON PNTS (0,0)(1750,0) .RECT AT (1000,5498) RECOLOR ON THICKNESS 1 PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (1325,5786) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <1 358> T_PNTS (0,358)(0,0)(360,0)(360,359)(0,359)(0,358)(360,358) H_SPACE 0 .STR L_SPACE 250 "A" .RECT AT (3250,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (3611,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "B" .RECT AT (5500,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (5844,5773) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-19 366> T_PNTS (0,366)(0,0)(319,0)(319,378)(0,378)(0,366)(319,366) .STR L_SPACE 250 "C" .RECT AT (7750,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (8110,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "D" .TXT AT (2000,4738) RECOLOR ON V_SPACE <0 250 0> SIZE 180000 TXTXYOFF <-16 178> T_PNTS (0,178)(0,0)(1130,0)(1130,183)(0,183)(0,178)(1130,178) .STR "Network 1" .TXT AT (4325,4743) RECOLOR ON TXTXYOFF <-14 178> T_PNTS (0,178)(0,0)(1165,0)(1165,183)(0,183)(0,178)(1165,178) .STR "Network 2" .TXT AT (6578,4738) RECOLOR ON TXTXYOFF <-16 178> T_PNTS (0,178)(0,0)(1166,0)(1166,183)(0,183)(0,178)(1166,178) .STR "Network 3" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (949,248) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <1 436> T_PNTS (0,436)(0,0)(8003,0)(8003,446)(0,446)(0,436)(8003,436) H_SPACE 9788 .STR "Answer: it must send to \"B\"" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (68,2192) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <11 317> T_PNTS (0,317)(0,0)(8835,0)(8835,2805)(0,2805)(0,317)(8835,317) .STR "This gets the packet one hop closer to the destination" .STR "\n\"Hop by hop\" forwarding" .STR "\nMust know which next hop to use" .STR "\nFor each packet, looks up destination in a " .STR ITALICS ON "forwarding table" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 ITALICS OFF L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (2071,236) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <1 438> T_PNTS (0,438)(0,0)(5799,0)(5799,569)(0,569)(0,438)(5799,438) .STR "A's forwarding table" .LINE AT (1750,4998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 56 PARA <0 0 0 0 1000 34 0 111> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,500)(0,0) .LINE AT (3500,4998) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (1750,4998) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (3999,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (5749,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (3999,4999) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (6248,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (7998,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (6248,4999) RECOLOR ON PNTS (0,0)(1750,0) .RECT AT (1000,5498) RECOLOR ON THICKNESS 1 PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (1325,5786) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <1 358> T_PNTS (0,358)(0,0)(360,0)(360,359)(0,359)(0,358)(360,358) H_SPACE 0 .STR L_SPACE 250 "A" .RECT AT (3250,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (3611,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "B" .RECT AT (5500,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (5844,5773) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-19 366> T_PNTS (0,366)(0,0)(319,0)(319,378)(0,378)(0,366)(319,366) .STR L_SPACE 250 "C" .RECT AT (7750,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (8110,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "D" .TXT AT (2238,1771) RECOLOR ON V_SPACE <0 333 0> FONT 5 SIZE 240000 BOLD OFF HOR_JUST LEFT L_SPACE 333 TXTXYOFF <0 219> T_PNTS (0,219)(0,0)(5176,0)(5176,1552)(0,1552)(0,219)(5176,219) .STR L_SPACE 250 "Destination Next-Hop\n----------- --------\n B direct\n C B\n D B" .ELL AT (1499,4499) RECOLOR ON BACKFILL <34 2 0 0 0 0 0> LINEFILL <1 21 5 1000 0 0 0> THICKNESS 56 R_ARROW 2 V_SPACE <0 250 0> FONT 2 SIZE 180000 MARGINS <125 125 250 62> START_ANGLE 1276 END_ANGLE 2390 PNTS (2250,1250)(0,1250)(0,0)(2250,0)(2250,1250) END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> LINEFILL <21 21 5 1000 0 0 0> THICKNESS 1 R_ARROW 0 PARA <0 0 0 0 1000 1 0 111> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (180,241) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-86 436> T_PNTS (0,436)(0,0)(9769,0)(9769,1178)(0,1178)(0,436)(9769,436) H_SPACE 9788 .STR "We don't list individual hosts in a forwarding table" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (63,2184) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <13 322> T_PNTS (0,322)(0,0)(9213,0)(9213,4976)(0,4976)(0,322)(9213,322) .STR "The Internet has hundreds of millions of hosts; the table would be too big" .STR "\nHowever, all the hosts on one network share the same prefix" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tExample: network 200.10.194.0/24" .STR "\n\tThe first 24 bits of each IP address is the same" .STR PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 "\nSo we can match all the hosts on a remote network with a sing le forwarding table entry" .STR "\nA forwarding table for the entire Internet is \"only\" about 150,000 entries, because each entry represents a (group of) netw orks" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (1191,233) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <1 438> T_PNTS (0,438)(0,0)(7535,0)(7535,569)(0,569)(0,438)(7535,438) .STR "A's forwarding table (new)" .LINE AT (1750,4998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 56 PARA <0 0 0 0 1000 34 0 111> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,500)(0,0) .LINE AT (3500,4998) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (1750,4998) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (3999,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (5749,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (3999,4999) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (6248,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (7998,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (6248,4999) RECOLOR ON PNTS (0,0)(1750,0) .RECT AT (1000,5498) RECOLOR ON THICKNESS 1 PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (1325,5786) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <1 358> T_PNTS (0,358)(0,0)(360,0)(360,359)(0,359)(0,358)(360,358) H_SPACE 0 .STR L_SPACE 250 "A" .RECT AT (3250,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (3611,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "B" .RECT AT (5500,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (5844,5773) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-19 366> T_PNTS (0,366)(0,0)(319,0)(319,378)(0,378)(0,366)(319,366) .STR L_SPACE 250 "C" .RECT AT (7750,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (8110,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "D" .TXT AT (2232,1764) RECOLOR ON V_SPACE <0 333 0> FONT 5 SIZE 240000 BOLD OFF HOR_JUST LEFT L_SPACE 333 TXTXYOFF <0 219> T_PNTS (0,219)(0,0)(5176,0)(5176,1588)(0,1588)(0,219)(5176,219) .STR L_SPACE 250 "Destination Next-Hop\n----------- --------\n Networ k 1 direct\n Network 2 B (*)\n Network 3 B (*)" .ELL AT (1499,4499) RECOLOR ON BACKFILL <34 2 0 0 0 0 0> LINEFILL <1 21 5 1000 0 0 0> THICKNESS 56 R_ARROW 2 V_SPACE <0 250 0> FONT 2 SIZE 180000 MARGINS <125 125 250 62> PNTS (2250,1250)(0,1250)(0,0)(2250,0)(2250,1250) .LINE AT (1750,4998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> LINEFILL <21 21 5 1000 0 0 0> R_ARROW 0 PNTS (0,0)(1750,0) .LINE AT (3999,4999) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (6248,4999) RECOLOR ON PNTS (0,0)(1750,0) .TXT AT (2000,4738) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 BOLD ON HOR_JUST CENTER MARGINS <0 0 0 0> TXTXYOFF <-16 178> T_PNTS (0,178)(0,0)(1130,0)(1130,183)(0,183)(0,178)(1130,178) .STR "Network 1" .TXT AT (4325,4743) RECOLOR ON TXTXYOFF <-14 178> T_PNTS (0,178)(0,0)(1165,0)(1165,183)(0,183)(0,178)(1165,178) .STR "Network 2" .TXT AT (6578,4738) RECOLOR ON TXTXYOFF <-16 178> T_PNTS (0,178)(0,0)(1166,0)(1166,183)(0,183)(0,178)(1166,178) .STR "Network 3" .LINE AT (2250,5000) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(0,250) .LINE AT (2500,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (2750,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (3000,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (4498,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (4748,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (4998,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (5248,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (6748,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (6998,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (7248,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (7498,5000) RECOLOR ON PNTS (0,0)(0,250) .TXT AT (1747,7059) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 MARGINS <0 0 0 0> TXTXYOFF <-24 183> T_PNTS (0,183)(0,0)(6806,0)(6806,234)(0,234)(0,183)(6806,183) .STR "(*) Note: B has two IP addresses. Which one do we use here?" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (715,223) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-3 448> T_PNTS (0,448)(0,0)(8480,0)(8480,579)(0,579)(0,448)(8480,448) H_SPACE 9788 .STR "What is B's forwarding table?" .LINE AT (1750,4998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 56 PARA <0 0 0 0 1000 34 0 111> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,500)(0,0) .LINE AT (3500,4998) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (1750,4998) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (3999,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (5749,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (3999,4999) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (6248,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (7998,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (6248,4999) RECOLOR ON PNTS (0,0)(1750,0) .RECT AT (1000,5498) RECOLOR ON THICKNESS 1 PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (1325,5786) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <1 358> T_PNTS (0,358)(0,0)(360,0)(360,359)(0,359)(0,358)(360,358) H_SPACE 0 .STR L_SPACE 250 "A" .RECT AT (3250,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (3611,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "B" .RECT AT (5500,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (5844,5773) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-19 366> T_PNTS (0,366)(0,0)(319,0)(319,378)(0,378)(0,366)(319,366) .STR L_SPACE 250 "C" .RECT AT (7750,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (8110,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "D" .TXT AT (2236,1766) RECOLOR ON V_SPACE <0 333 0> FONT 5 SIZE 240000 BOLD OFF HOR_JUST LEFT L_SPACE 333 TXTXYOFF <0 219> T_PNTS (0,219)(0,0)(5176,0)(5176,1557)(0,1557)(0,219)(5176,219) .STR L_SPACE 250 "Destination Next-Hop\n----------- --------\n Networ k 1\n Network 2\n Network 3" .LINE AT (1750,4998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 56 V_SPACE <0 250 0> FONT 2 SIZE 180000 MARGINS <125 125 250 62> PNTS (0,0)(1750,0) .LINE AT (3999,4999) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (6248,4999) RECOLOR ON PNTS (0,0)(1750,0) .TXT AT (2000,4738) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 BOLD ON HOR_JUST CENTER MARGINS <0 0 0 0> TXTXYOFF <-16 178> T_PNTS (0,178)(0,0)(1130,0)(1130,183)(0,183)(0,178)(1130,178) .STR "Network 1" .TXT AT (4325,4743) RECOLOR ON TXTXYOFF <-14 178> T_PNTS (0,178)(0,0)(1165,0)(1165,183)(0,183)(0,178)(1165,178) .STR "Network 2" .TXT AT (6578,4738) RECOLOR ON TXTXYOFF <-16 178> T_PNTS (0,178)(0,0)(1166,0)(1166,183)(0,183)(0,178)(1166,178) .STR "Network 3" .LINE AT (2250,5000) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(0,250) .LINE AT (2500,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (2750,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (3000,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (4498,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (4748,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (4998,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (5248,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (6748,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (6998,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (7248,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (7498,5000) RECOLOR ON PNTS (0,0)(0,250) END PICTURE NOTES .GRP PARA <0 0 0 0 1000 1 0 111> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (887,246) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-122 438> T_PNTS (0,438)(0,0)(8407,0)(8407,1060)(0,1060)(0,438)(8407,438) H_SPACE 9788 .STR "In general, all the forwarding tables are *different*" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (76,2197) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <13 322> T_PNTS (0,322)(0,0)(9213,0)(9213,1802)(0,1802)(0,322)(9213,322) .STR "And they must all be correct, for A to be able to send traffic to D" .STR "\nAlso, forwarding from D to A must be correct so that response s can be received" .LINE AT (1750,4998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 56 PARA <0 0 0 0 1000 34 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,500)(0,0) .LINE AT (3500,4998) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (1750,4998) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (3999,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (5749,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (3999,4999) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (6248,4999) RECOLOR ON PNTS (0,500)(0,0) .LINE AT (7998,4999) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (6248,4999) RECOLOR ON PNTS (0,0)(1750,0) .RECT AT (1000,5498) RECOLOR ON THICKNESS 1 PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (1325,5786) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <1 358> T_PNTS (0,358)(0,0)(360,0)(360,359)(0,359)(0,358)(360,358) H_SPACE 0 .STR L_SPACE 250 "A" .RECT AT (3250,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (3611,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "B" .RECT AT (5500,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (5844,5773) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-19 366> T_PNTS (0,366)(0,0)(319,0)(319,378)(0,378)(0,366)(319,366) .STR L_SPACE 250 "C" .RECT AT (7750,5498) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (8110,5781) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 500 0> SIZE 360000 BOLD ON HOR_JUST CENTER L_SPACE 500 MARGINS <0 0 0 0> TXTXYOFF <-36 358> T_PNTS (0,358)(0,0)(302,0)(302,359)(0,359)(0,358)(302,358) .STR L_SPACE 250 "D" .ELL AT (1499,4499) RECOLOR ON BACKFILL <34 2 0 0 0 0 0> LINEFILL <1 21 5 1000 0 0 0> THICKNESS 56 R_ARROW 2 V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (2250,1250)(0,1250)(0,0)(2250,0)(2250,1250) .LINE AT (1750,4998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> LINEFILL <21 21 5 1000 0 0 0> R_ARROW 0 PNTS (0,0)(1750,0) .LINE AT (3999,4999) RECOLOR ON PNTS (0,0)(1750,0) .LINE AT (6248,4999) RECOLOR ON PNTS (0,0)(1750,0) .TXT AT (2000,4738) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 BOLD ON HOR_JUST CENTER MARGINS <0 0 0 0> TXTXYOFF <-16 178> T_PNTS (0,178)(0,0)(1130,0)(1130,183)(0,183)(0,178)(1130,178) .STR "Network 1" .TXT AT (4325,4743) RECOLOR ON TXTXYOFF <-14 178> T_PNTS (0,178)(0,0)(1165,0)(1165,183)(0,183)(0,178)(1165,178) .STR "Network 2" .TXT AT (6578,4738) RECOLOR ON TXTXYOFF <-16 178> T_PNTS (0,178)(0,0)(1166,0)(1166,183)(0,183)(0,178)(1166,178) .STR "Network 3" .LINE AT (2250,5000) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> PNTS (0,0)(0,250) .LINE AT (2500,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (2750,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (3000,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (4498,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (4748,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (4998,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (5248,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (6748,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (6998,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (7248,5000) RECOLOR ON PNTS (0,0)(0,250) .LINE AT (7498,5000) RECOLOR ON PNTS (0,0)(0,250) .ELL AT (3749,4501) RECOLOR ON BACKFILL <34 2 0 0 0 0 0> LINEFILL <1 21 5 1000 0 0 0> THICKNESS 56 R_ARROW 2 PNTS (2250,1250)(0,1250)(0,0)(2250,0)(2250,1250) .ELL AT (5999,4501) RECOLOR ON PNTS (2250,1250)(0,1250)(0,0)(2250,0)(2250,1250) .ELL AT (1499,5752) RECOLOR ON PNTS (0,0)(2250,0)(2250,1250)(0,1250)(0,0) .ELL AT (3749,5751) RECOLOR ON PNTS (0,0)(2250,0)(2250,1250)(0,1250)(0,0) .ELL AT (5999,5751) RECOLOR ON PNTS (0,0)(2250,0)(2250,1250)(0,1250)(0,0) END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> LINEFILL <21 21 5 1000 0 0 0> THICKNESS 1 R_ARROW 0 PARA <0 0 0 0 1000 1 0 111> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (733,246) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-88 438> T_PNTS (0,438)(0,0)(8678,0)(8678,1182)(0,1182)(0,438)(8678,438) H_SPACE 9788 .STR "What happens if a forwarding table entry is wrong?" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (76,2198) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <11 317> T_PNTS (0,317)(0,0)(7257,0)(7257,1319)(0,1319)(0,317)(7257,317) .STR "\"Black holes\"" .STR "\nForwarding loops" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tWhy are they not forwarded forever?" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (3049,229) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-22 448> T_PNTS (0,448)(0,0)(3854,0)(3854,579)(0,579)(0,448)(3854,448) .STR "Static routing" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (76,2197) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <13 322> T_PNTS (0,322)(0,0)(9254,0)(9254,2717)(0,2717)(0,322)(9254,322) .STR "Means that the forwarding table entries are built by hand" .STR "\nPerfectly OK for small networks" .STR "\nError-prone for large networks" .STR "\nIf network topology changes, tables must be rebuilt" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (2633,248) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-45 436> T_PNTS (0,436)(0,0)(4715,0)(4715,567)(0,567)(0,436)(4715,436) .STR "Dynamic routing" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (76,2202) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <13 317> T_PNTS (0,317)(0,0)(9187,0)(9187,3214)(0,3214)(0,317)(9187,317) .STR "Routers communicate with each other to discover the network top ology" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tExamples: OSPF, IS-IS, RIP (bad)" .STR PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 "\nForwarding tables built automatically" .STR "\nAutomatically responds to changes in topology, e.g. link fail ures" .STR "\nTraffic can take alternate paths for resilience" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (1355,229) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-37 448> T_PNTS (0,448)(0,0)(7266,0)(7266,579)(0,579)(0,448)(7266,448) .STR "IP forwarding in FreeBSD" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (76,2202) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <13 317> T_PNTS (0,317)(0,0)(8897,0)(8897,1360)(0,1360)(0,317)(8897,317) .STR "Unix machines can make adequate routers" .STR "\nWhy do we prefer to buy expensive hardware routers (e.g. Cisc o?)" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (1767,236) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-24 448> T_PNTS (0,448)(0,0)(6440,0)(6440,579)(0,579)(0,448)(6440,448) .STR "Configuring interfaces" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (67,2181) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <11 325> T_PNTS (0,325)(0,0)(9059,0)(9059,4077)(0,4077)(0,325)(9059,325) .STR "ifconfig fxp0 x.x.x.x/y" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tx.x.x.x is YOUR IP address" .STR "\n\ty is the prefix length for the network" .STR PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 "\nOr: ifconfig fxp0 x.x.x.x netmask y.y.y.y" .STR "\nYou will immediately be able to ping other machines which are directly connected to fxp0" .STR "\nThat is, those which a" .STR SIZE 280000 "re on the same network as you, " .STR "and hence h" .STR "ave the same IP prefix as you" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (775,245) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-81 436> T_PNTS (0,436)(0,0)(8582,0)(8582,1057)(0,1057)(0,436)(8582,436) .STR "Adding static routes to reach remote networks" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (67,2181) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <11 325> T_PNTS (0,325)(0,0)(9080,0)(9080,3535)(0,3535)(0,325)(9080,325) .STR "route add -net x.x.x.x/y z.z.z.z" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tx.x.x.x/y are the network address and prefix length of a re mote network" .STR "\n\tz.z.z.z is the IP address of the next hop router" .STR PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 "\nz.z.z.z must be on the same network as you" .STR "\nYou can now ping any machine on that network (but you won't g et a response until *all* intermediate hops are configured)" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (2013,256) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-45 438> T_PNTS (0,438)(0,0)(5964,0)(5964,569)(0,569)(0,438)(5964,438) .STR "Enable IP forwarding" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (75,2193) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <11 322> T_PNTS (0,322)(0,0)(9231,0)(9231,3170)(0,3170)(0,322)(9231,322) .STR "If a machine has two or more interfaces and you wish to enable forwarding of IP datagrams, you need to flip a switch in the ker nel" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tFor safety, default is off" .STR PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 "\nsysctl net.inet.ip.forwarding=1" .STR "\n(To see all the switches: sysctl -a )" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (614,236) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-22 448> T_PNTS (0,448)(0,0)(8740,0)(8740,1192)(0,1192)(0,448)(8740,448) .STR "Static routes in startup scripts\n(to make changes permanent)" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (67,2184) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <13 325> T_PNTS (0,325)(0,0)(9220,0)(9220,3926)(0,3926)(0,325)(9220,325) .STR "Add lines to /etc/rc.conf" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tifconfig_fxp0=\"192.168.0.1/24\"" .STR "\n\tstatic_routes=\"noc webfarm\"" .STR "\n\troute_noc=\"192.168.1.0/24 192.168.0.252\"" .STR "\n\troute_webfarm=\"192.168.2.0/24 192.168.0.253\"" .STR "\n\tdefaultrouter=\"192.168.0.254\"" .STR PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 "\nIf this machine should forward packets" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tgateway_enable=\"yes\"" .STR PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 "\n/etc/rc.d/routing start" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (750,243) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-44 438> T_PNTS (0,438)(0,0)(8464,0)(8464,569)(0,569)(0,438)(8464,438) .STR "Reviewing your configuration" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (68,2187) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <11 322> T_PNTS (0,322)(0,0)(8303,0)(8303,1743)(0,1743)(0,322)(8303,322) .STR "ifconfig" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tShows the interface configuration" .STR PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 "\nnetstat -nr" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tShows the contents of the forwarding table" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (2116,248) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-4 436> T_PNTS (0,436)(0,0)(5736,0)(5736,567)(0,567)(0,436)(5736,436) .STR "Testing the network" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (76,2202) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <13 317> T_PNTS (0,317)(0,0)(9086,0)(9086,4365)(0,4365)(0,317)(9086,317) .STR "ping x.x.x.x" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tCheck you can get packets to and from that remote machine" .STR PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 "\ntraceroute -n x.x.x.x" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tShows the route traffic takes towards x.x.x.x" .STR "\n\tIf it stops at a certain point, that may indicate where the error is" .STR "\n\t\"-n\" prevents DNS lookups" .STR PARA <-500 1500 -500 1 1000 0 3 108> V_SPACE <28 333 0> SIZE 240000 "\n\t\tThis is VERY important; if your network is broken then pr obably your DNS servers are not reachable, and attempting to do so will introduce long delays" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (2139,236) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-24 448> T_PNTS (0,448)(0,0)(5706,0)(5706,462)(0,462)(0,448)(5706,448) .STR "Classroom exercise" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (81,2205) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <11 317> T_PNTS (0,317)(0,0)(8879,0)(8879,861)(0,861)(0,317)(8879,317) .STR "Break the class into a \"backbone\" network with separate edge networks" .RECT AT (1750,3998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 34 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .RECT AT (1750,5995) RECOLOR ON PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .RECT AT (4000,3997) RECOLOR ON PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .RECT AT (4000,5994) RECOLOR ON PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .RECT AT (6250,3997) RECOLOR ON PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .RECT AT (6250,5994) RECOLOR ON PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .LINE AT (1250,3500) RECOLOR ON PNTS (0,0)(7500,0) .LINE AT (2250,3500) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (4500,3500) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (6750,3500) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (1251,4500) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (1250,6500) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (1250,4500) RECOLOR ON PNTS (0,0)(0,2000) .LINE AT (3501,4500) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (3500,6500) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (3500,4500) RECOLOR ON PNTS (0,0)(0,2000) .LINE AT (5751,4500) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (5750,6500) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (5750,4500) RECOLOR ON PNTS (0,0)(0,2000) .TXT AT (3777,3173) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> SIZE 240000 ITALICS ON L_SPACE 333 MARGINS <0 0 0 0> TXTXYOFF <-1 238> T_PNTS (0,238)(0,0)(1461,0)(1461,243)(0,243)(0,238)(1461,238) H_SPACE 0 .STR L_SPACE 250 "Backbone" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 ITALICS OFF MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 12 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (1675,223) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-22 448> T_PNTS (0,448)(0,0)(6607,0)(6607,579)(0,579)(0,448)(6607,448) H_SPACE 9788 .STR "Configuration for PC23" .LINE AT (502,1501) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> THICKNESS 56 PARA <0 0 0 0 1000 34 0 111> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,0)(7500,0) .LINE AT (1502,1501) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (7002,1503) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (503,2501) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (502,4501) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (502,2501) RECOLOR ON PNTS (0,0)(0,2000) .LINE AT (6003,2503) RECOLOR ON THICKNESS 1 PNTS (500,0)(0,0) .LINE AT (6002,4503) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (6002,2503) RECOLOR ON PNTS (0,0)(0,2000) .TXT AT (1602,1583) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> SIZE 240000 L_SPACE 333 MARGINS <0 0 0 0> TXTXYOFF <-32 232> T_PNTS (0,232)(0,0)(2080,0)(2080,239)(0,239)(0,232)(2080,232) H_SPACE 0 .STR L_SPACE 250 "192.188.58.69" .TXT AT (3741,994) RECOLOR ON ITALICS ON L_SPACE 333 TXTXYOFF <-40 243> T_PNTS (0,243)(0,0)(2538,0)(2538,275)(0,275)(0,243)(2538,243) .STR L_SPACE 250 "192.188.58.64/28" .TXT AT (700,3351) RECOLOR ON L_SPACE 333 T_PNTS (0,243)(0,0)(2722,0)(2722,275)(0,275)(0,243)(2722,243) .STR L_SPACE 250 "192.188.58.116/30" .TXT AT (7139,1568) RECOLOR ON ITALICS OFF L_SPACE 333 TXTXYOFF <-32 232> T_PNTS (0,232)(0,0)(2080,0)(2080,239)(0,239)(0,232)(2080,232) .STR L_SPACE 250 "192.188.58.78" .TXT AT (6263,3351) RECOLOR ON ITALICS ON L_SPACE 333 TXTXYOFF <-40 243> T_PNTS (0,243)(0,0)(2722,0)(2722,275)(0,275)(0,243)(2722,243) .STR L_SPACE 250 "192.188.58.120/30" .TXT AT (122,5465) RECOLOR ON V_SPACE <0 222 0> FONT 5 SIZE 160000 BOLD ON ITALICS OFF L_SPACE 222 TXTXYOFF <0 144> T_PNTS (0,144)(0,0)(6421,0)(6421,1509)(0,1509)(0,144)(6421,144) .STR L_SPACE 250 "# ifconfig eth0 192.188.58.69/28\n# ping 192.188.58.78\n# ifcon fig eth1 192.188.58.118/30\n# ping 192.188.58.117\n# route add - net 192.188.58.120/30 192.168.58.78\n# netstat -nr\n# ping 192.1 88.58.121" .TXT AT (1741,6998) RECOLOR ON V_SPACE <0 333 0> FONT 2 SIZE 240000 BOLD OFF ITALICS ON L_SPACE 333 TXTXYOFF <-1 242> T_PNTS (0,242)(0,0)(6829,0)(6829,311)(0,311)(0,242)(6829,242) .STR L_SPACE 250 "Repeat for all other networks in the classroom!" .TXT AT (298,2123) RECOLOR ON ITALICS OFF L_SPACE 333 TXTXYOFF <-29 232> T_PNTS (0,232)(0,0)(605,0)(605,239)(0,239)(0,232)(605,232) .STR L_SPACE 250 ".118" .TXT AT (294,4632) RECOLOR ON L_SPACE 333 T_PNTS (0,232)(0,0)(605,0)(605,233)(0,233)(0,232)(605,232) .STR L_SPACE 250 ".117" .TXT AT (5794,2123) RECOLOR ON L_SPACE 333 T_PNTS (0,232)(0,0)(603,0)(603,233)(0,233)(0,232)(603,232) .STR L_SPACE 250 ".122" .TXT AT (5790,4637) RECOLOR ON L_SPACE 333 T_PNTS (0,232)(0,0)(549,0)(549,233)(0,233)(0,232)(549,232) .STR L_SPACE 250 ".121" .RECT AT (1002,1998) RECOLOR ON BACKFILL <7 2 5 1000 0 0 0> THICKNESS 1 V_SPACE <0 250 0> SIZE 180000 MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .POL AT (1002,3996) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .RECT AT (6502,2000) RECOLOR ON PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .RECT AT (6502,3997) RECOLOR ON PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .TXT AT (1108,2356) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> SIZE 240000 BOLD ON HOR_JUST CENTER L_SPACE 333 MARGINS <0 0 0 0> TXTXYOFF <-24 243> T_PNTS (0,243)(0,0)(795,0)(795,250)(0,250)(0,243)(795,243) .STR L_SPACE 250 "PC23" .TXT AT (1106,4371) RECOLOR ON L_SPACE 333 T_PNTS (0,243)(0,0)(798,0)(798,250)(0,250)(0,243)(798,243) .STR L_SPACE 250 "PC24" .TXT AT (6602,2371) RECOLOR ON L_SPACE 333 TXTXYOFF <-22 243> T_PNTS (0,243)(0,0)(794,0)(794,250)(0,250)(0,243)(794,243) .STR L_SPACE 250 "PC25" .TXT AT (6607,4371) RECOLOR ON L_SPACE 333 T_PNTS (0,243)(0,0)(798,0)(798,250)(0,250)(0,243)(798,243) .STR L_SPACE 250 "PC26" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 12 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (1680,226) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-22 448> T_PNTS (0,448)(0,0)(6612,0)(6612,579)(0,579)(0,448)(6612,448) H_SPACE 9788 .STR "Configuration for PC24" .RECT AT (1002,1998) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 34 0 111> V_SPACE <0 250 0> SIZE 180000 BOLD OFF HOR_JUST LEFT L_SPACE 250 MARGINS <125 125 250 62> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .POL AT (1002,3996) RECOLOR ON BACKFILL <7 2 5 1000 0 0 0> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .RECT AT (6502,2000) RECOLOR ON BACKFILL <34 2 5 1000 0 0 0> PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .RECT AT (6502,3997) RECOLOR ON PNTS (0,0)(1000,0)(1000,1000)(0,1000)(0,0) .LINE AT (502,1501) RECOLOR ON PNTS (0,0)(7500,0) .LINE AT (1502,1501) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (7002,1503) RECOLOR ON PNTS (0,0)(0,500) .LINE AT (503,2501) RECOLOR ON THICKNESS 56 PNTS (500,0)(0,0) .LINE AT (502,4501) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (502,2501) RECOLOR ON PNTS (0,0)(0,2000) .LINE AT (6003,2503) RECOLOR ON THICKNESS 1 PNTS (500,0)(0,0) .LINE AT (6002,4503) RECOLOR ON PNTS (500,0)(0,0) .LINE AT (6002,2503) RECOLOR ON PNTS (0,0)(0,2000) .TXT AT (1108,2356) RECOLOR ON BACKFILL <20 20 5 1000 0 0 0> THICKNESS 0 V_SPACE <0 333 0> SIZE 240000 BOLD ON HOR_JUST CENTER L_SPACE 333 MARGINS <0 0 0 0> TXTXYOFF <-24 243> T_PNTS (0,243)(0,0)(795,0)(795,250)(0,250)(0,243)(795,243) H_SPACE 0 .STR L_SPACE 250 "PC23" .TXT AT (1602,1583) RECOLOR ON BOLD OFF HOR_JUST LEFT L_SPACE 333 TXTXYOFF <-32 232> T_PNTS (0,232)(0,0)(2080,0)(2080,239)(0,239)(0,232)(2080,232) .STR L_SPACE 250 "192.188.58.69" .TXT AT (3741,994) RECOLOR ON ITALICS ON L_SPACE 333 TXTXYOFF <-40 243> T_PNTS (0,243)(0,0)(2538,0)(2538,275)(0,275)(0,243)(2538,243) .STR L_SPACE 250 "192.188.58.64/28" .TXT AT (700,3351) RECOLOR ON L_SPACE 333 T_PNTS (0,243)(0,0)(2722,0)(2722,275)(0,275)(0,243)(2722,243) .STR L_SPACE 250 "192.188.58.116/30" .TXT AT (1106,4371) RECOLOR ON BOLD ON ITALICS OFF HOR_JUST CENTER L_SPACE 333 TXTXYOFF <-24 243> T_PNTS (0,243)(0,0)(798,0)(798,250)(0,250)(0,243)(798,243) .STR L_SPACE 250 "PC24" .TXT AT (6602,2371) RECOLOR ON L_SPACE 333 TXTXYOFF <-22 243> T_PNTS (0,243)(0,0)(794,0)(794,250)(0,250)(0,243)(794,243) .STR L_SPACE 250 "PC25" .TXT AT (6607,4371) RECOLOR ON L_SPACE 333 T_PNTS (0,243)(0,0)(798,0)(798,250)(0,250)(0,243)(798,243) .STR L_SPACE 250 "PC26" .TXT AT (7139,1568) RECOLOR ON BOLD OFF HOR_JUST LEFT L_SPACE 333 TXTXYOFF <-32 232> T_PNTS (0,232)(0,0)(2080,0)(2080,239)(0,239)(0,232)(2080,232) .STR L_SPACE 250 "192.188.58.78" .TXT AT (6263,3351) RECOLOR ON ITALICS ON L_SPACE 333 TXTXYOFF <-40 243> T_PNTS (0,243)(0,0)(2722,0)(2722,275)(0,275)(0,243)(2722,243) .STR L_SPACE 250 "192.188.58.120/30" .TXT AT (138,5439) RECOLOR ON V_SPACE <0 222 0> FONT 5 SIZE 160000 BOLD ON ITALICS OFF L_SPACE 222 TXTXYOFF <0 144> T_PNTS (0,144)(0,0)(9508,0)(9508,1509)(0,1509)(0,144)(9508,144) .STR L_SPACE 250 "# ifconfig eth0 192.188.58.117 -netmask 255.255.255.252\n# ping 192.188.58.118\n# route add -net 192.188.58.64 -netmask 255.255 .255.240 192.168.58.118\n# ping 192.188.58.78\n# route add -net 192.188.58.120 -netmask 255.255.255.252 192.168.58.118\n# netsta t -nr\n# ping 192.188.58.121" .TXT AT (1741,6998) RECOLOR ON V_SPACE <0 333 0> FONT 2 SIZE 240000 BOLD OFF ITALICS ON L_SPACE 333 TXTXYOFF <-1 242> T_PNTS (0,242)(0,0)(6829,0)(6829,311)(0,311)(0,242)(6829,242) .STR L_SPACE 250 "Repeat for all other networks in the classroom!" .TXT AT (298,2123) RECOLOR ON ITALICS OFF L_SPACE 333 TXTXYOFF <-29 232> T_PNTS (0,232)(0,0)(605,0)(605,239)(0,239)(0,232)(605,232) .STR L_SPACE 250 ".118" .TXT AT (294,4632) RECOLOR ON L_SPACE 333 T_PNTS (0,232)(0,0)(605,0)(605,233)(0,233)(0,232)(605,232) .STR L_SPACE 250 ".117" .TXT AT (5794,2123) RECOLOR ON L_SPACE 333 T_PNTS (0,232)(0,0)(603,0)(603,233)(0,233)(0,232)(603,232) .STR L_SPACE 250 ".122" .TXT AT (5790,4637) RECOLOR ON L_SPACE 333 T_PNTS (0,232)(0,0)(549,0)(549,233)(0,233)(0,232)(549,232) .STR L_SPACE 250 ".121" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> THICKNESS 1 PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (4268,248) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-40 436> T_PNTS (0,436)(0,0)(1456,0)(1456,446)(0,446)(0,436)(1456,436) H_SPACE 9788 .STR "Hints" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (76,2198) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <11 317> T_PNTS (0,317)(0,0)(9201,0)(9201,4851)(0,4851)(0,317)(9201,317) .STR "Test your network one step at a time" .STR PARA <-500 1000 -500 1 1000 0 3 108> V_SPACE <28 389 0> SIZE 280000 "\n\tMake sure you can ping your next hop before you try to rout e traffic through it" .STR PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 "\nRemember that pinging won't work unless you have routes to th eir network AND they have routes to your network" .STR "\nPick another desk and work with them until you are able to pi ng both their machines and they can ping both of yours" .STR "\nReview your configuration frequently. Make sure netmasks are correct!" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES SLIDE_INFO SLIDE_STYLE <0 -1 1> LAYOUT_ID <1 2 12 12 12> END SLIDE_INFO PICTURE .TMP AT (105,85) RECOLOR ON TEMPLATE_FLAGS <1 0 0 0> T_POS <105 85 9892 1923> .TXT AT (165,246) RECOLOR ON TEMPLATED ON BACKFILL <7 7 0 0 0 0 0> V_SPACE <0 611 0> SIZE 440000 BOLD ON HOR_JUST CENTER L_SPACE 611 MARGINS <0 0 0 0> TXTXYOFF <-40 438> T_PNTS (0,438)(0,0)(9658,0)(9658,1060)(0,1060)(0,438)(9658,438) .STR "How to get full connectivity to the Internet?" .TMP AT (105,2090) RECOLOR ON TEMPLATE_FLAGS <2 3 0 0> T_POS <105 2090 9892 7370> .TXT AT (74,2193) RECOLOR ON TEMPLATED ON BACKFILL <20 20 0 0 0 0 0> PARA <-500 500 -500 1 1000 0 3 108> V_SPACE <56 444 0> SIZE 320000 BOLD OFF HOR_JUST LEFT L_SPACE 444 TXTXYOFF <11 322> T_PNTS (0,322)(0,0)(7691,0)(7691,414)(0,414)(0,322)(7691,322) .STR "We prefer not to add 150,000 routes!" END PICTURE NOTES .GRP BACKFILL <34 2 5 1000 0 0 0> PARA <0 0 0 0 1000 1 0 111> V_SPACE <0 250 0> SIZE 180000 L_SPACE 250 MARGINS <125 125 250 62> .TMP AT (250,250) RECOLOR ON TEMPLATE_FLAGS <5 14 0 0> T_POS <250 250 7249 4875> .VOID .TMP AT (250,5125) RECOLOR ON TEMPLATE_FLAGS <6 15 0 0> T_POS <250 5125 7249 9749> .VOID END .GRP END NOTES *END GRAPHICS