Number of packets is 26 . --------------------------------------- Input packet 0: First the packet coming in: Router 3, Input Port A6 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 61680 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 30 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.6.15 Dest Address: 10.5.128.246 No Options Present. Number of data bytes = 1480 . Source Network is: 2 : 10.10.0.0/20 . Destination Network (possibly after SSR rotation) is: 9 : 10.5.128.0/22 . Output Port is: A7 . Next subnet is: 4 : 10.2.32.0/20 . Forward to Next Port. Next Port is: A12 . Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 61680 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 29 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.6.15 Dest Address: 10.5.128.246 No Options Present. Number of data bytes = 1480 . --------------------------------------- Input packet 1: First the packet coming in: Router 3, Input Port A7 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 17914 ; Ident = 3891 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 85 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.2.32.32 Dest Address: 10.5.136.9 No Options Present. Number of data bytes = 17894 . Source Network is: 4 : 10.2.32.0/20 . Destination Network (possibly after SSR rotation) is: 12 : 10.5.136.0/22 . Output Port is: A10 . Next subnet is: 7 : 10.10.16.0/22 . Forward to Next Port. Next Port is: A16 . Next the fragments going out: Total Size > MTU: Fragmentation required. Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4460 ; Ident = 3891 , U = 0 , DF = 0 , M = 1 , FragOffset = 0 ; TTL = 84 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.2.32.32 Dest Address: 10.5.136.9 No Options Present. Number of data bytes = 4440 . Fragment 2: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4460 ; Ident = 3891 , U = 0 , DF = 0 , M = 1 , FragOffset = 555 ; TTL = 84 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.2.32.32 Dest Address: 10.5.136.9 No Options Present. Number of data bytes = 4440 . Fragment 3: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4460 ; Ident = 3891 , U = 0 , DF = 0 , M = 1 , FragOffset = 1110 ; TTL = 84 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.2.32.32 Dest Address: 10.5.136.9 No Options Present. Number of data bytes = 4440 . Fragment 4: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4460 ; Ident = 3891 , U = 0 , DF = 0 , M = 1 , FragOffset = 1665 ; TTL = 84 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.2.32.32 Dest Address: 10.5.136.9 No Options Present. Number of data bytes = 4440 . Fragment 5: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 154 ; Ident = 3891 , U = 0 , DF = 0 , M = 0 , FragOffset = 2220 ; TTL = 84 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.2.32.32 Dest Address: 10.5.136.9 No Options Present. Number of data bytes = 134 . --------------------------------------- Input packet 2: First the packet coming in: Router 3, Input Port A7 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 17914 ; Ident = 3891 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 1 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.2.32.32 Dest Address: 10.5.136.9 No Options Present. Number of data bytes = 17894 . TTL expired, drop packet, send ICMP. --------------------------------------- Input packet 3: First the packet coming in: Router 3, Input Port A9 VERS = 4 , HLEN = 10 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4096 ; Ident = 21845 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 204 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.132.28 Dest Address: 10.1.1.1 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 19 , Pointer = 12 . Number of extra SSR addresses is 4 Extra SSR adress 1 is 10.5.192.254 Extra SSR adress 2 is 10.1.1.254 Extra SSR adress 3 is 10.2.16.1 Extra SSR adress 4 is 10.10.3.15 Number of data bytes = 4056 . Source Network is: 11 : 10.5.132.0/22 . Destination Network (possibly after SSR rotation) is: 3 : 10.2.16.0/20 . Destination (possibly after SSR rotation) is Router Port A5 . Output Port is: A6 . Next subnet is: 3 : 10.2.16.0/20 . Direct Delivery to interface on network 3 . This may include the case of SSR. Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 10 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4096 ; Ident = 21845 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 203 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.132.28 Dest Address: 10.2.16.1 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 19 , Pointer = 16 . Number of extra SSR addresses is 4 Extra SSR adress 1 is 10.5.192.254 Extra SSR adress 2 is 10.1.1.254 Extra SSR adress 3 is 10.2.16.254 Extra SSR adress 4 is 10.10.3.15 Number of data bytes = 4056 . --------------------------------------- Input packet 4: First the packet coming in: Router 3, Input Port A7 VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 12000 ; Ident = 13263 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 240 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.128.170 Dest Address: 10.2.32.1 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 8 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.2.32.254 Extra SSR adress 2 is 10.10.16.254 Extra SSR adress 3 is 10.5.136.179 Number of data bytes = 11964 . Source Network is: 9 : 10.5.128.0/22 . Destination Network (possibly after SSR rotation) is: 7 : 10.10.16.0/22 . Destination (possibly after SSR rotation) is Router Port A16 . Output Port is: A10 . Next subnet is: 7 : 10.10.16.0/22 . Direct Delivery to interface on network 7 . This may include the case of SSR. Next the fragments going out: Total Size > MTU: Fragmentation required. Fragment 1: VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4460 ; Ident = 13263 , U = 0 , DF = 0 , M = 1 , FragOffset = 0 ; TTL = 239 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.128.170 Dest Address: 10.10.16.254 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 12 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.2.32.254 Extra SSR adress 2 is 10.10.16.1 Extra SSR adress 3 is 10.5.136.179 Number of data bytes = 4424 . Fragment 2: VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4460 ; Ident = 13263 , U = 0 , DF = 0 , M = 1 , FragOffset = 553 ; TTL = 239 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.128.170 Dest Address: 10.10.16.254 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 12 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.2.32.254 Extra SSR adress 2 is 10.10.16.1 Extra SSR adress 3 is 10.5.136.179 Number of data bytes = 4424 . Fragment 3: VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 3152 ; Ident = 13263 , U = 0 , DF = 0 , M = 0 , FragOffset = 1106 ; TTL = 239 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.128.170 Dest Address: 10.10.16.254 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 12 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.2.32.254 Extra SSR adress 2 is 10.10.16.1 Extra SSR adress 3 is 10.5.136.179 Number of data bytes = 3116 . --------------------------------------- Input packet 5: First the packet coming in: Router 3, Input Port A9 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 55132 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 2 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.194.195 Dest Address: 10.10.24.243 No Options Present. Number of data bytes = 1480 . Source Network is: 10 : 10.5.192.0/22 . Destination Network (possibly after SSR rotation) is: 8 : 10.10.24.0/22 . Output Port is: A11 . Next subnet is: 8 : 10.10.24.0/22 . Direct Delivery to interface on network 8 . This may include the case of SSR. Next the fragments going out: Total Size > MTU: Fragmentation required. Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 55132 , U = 0 , DF = 0 , M = 1 , FragOffset = 0 ; TTL = 1 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.194.195 Dest Address: 10.10.24.243 No Options Present. Number of data bytes = 552 . Fragment 2: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 55132 , U = 0 , DF = 0 , M = 1 , FragOffset = 69 ; TTL = 1 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.194.195 Dest Address: 10.10.24.243 No Options Present. Number of data bytes = 552 . Fragment 3: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 396 ; Ident = 55132 , U = 0 , DF = 0 , M = 0 , FragOffset = 138 ; TTL = 1 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.194.195 Dest Address: 10.10.24.243 No Options Present. Number of data bytes = 376 . --------------------------------------- Input packet 6: First the packet coming in: Router 3, Input Port A6 VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 65280 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 252 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.0.60 Dest Address: 10.2.16.254 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 12 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.10.0.1 Extra SSR adress 2 is 10.2.16.1 Extra SSR adress 3 is 10.10.24.241 Number of data bytes = 1464 . Source Network is: 1 : 10.1.0.0/24 . Destination Network (possibly after SSR rotation) is: 8 : 10.10.24.0/22 . Output Port is: A11 . Next subnet is: 8 : 10.10.24.0/22 . Direct Delivery to interface on network 8 . This may include the case of SSR. Next the fragments going out: Total Size > MTU: Fragmentation required. Fragment 1: VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 65280 , U = 0 , DF = 0 , M = 1 , FragOffset = 0 ; TTL = 251 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.0.60 Dest Address: 10.10.24.241 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 16 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.10.0.1 Extra SSR adress 2 is 10.2.16.1 Extra SSR adress 3 is 10.10.24.1 Number of data bytes = 536 . Fragment 2: VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 65280 , U = 0 , DF = 0 , M = 1 , FragOffset = 67 ; TTL = 251 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.0.60 Dest Address: 10.10.24.241 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 16 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.10.0.1 Extra SSR adress 2 is 10.2.16.1 Extra SSR adress 3 is 10.10.24.1 Number of data bytes = 536 . Fragment 3: VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 428 ; Ident = 65280 , U = 0 , DF = 0 , M = 0 , FragOffset = 134 ; TTL = 251 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.0.60 Dest Address: 10.10.24.241 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 16 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.10.0.1 Extra SSR adress 2 is 10.2.16.1 Extra SSR adress 3 is 10.10.24.1 Number of data bytes = 392 . --------------------------------------- Input packet 7: First the packet coming in: Router 3, Input Port A11 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 496 ; Ident = 4080 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 54 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.24.15 Dest Address: 10.10.24.14 No Options Present. Number of data bytes = 476 . Input Port equals Output Port and Source Network is directly reachable: send ICMP redirect and route packet: Source Network is: 8 : 10.10.24.0/22 . Destination Network (possibly after SSR rotation) is: 8 : 10.10.24.0/22 . Output Port is: A11 . Next subnet is: 8 : 10.10.24.0/22 . Direct Delivery to interface on network 8 . This may include the case of SSR. Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 496 ; Ident = 4080 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 53 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.24.15 Dest Address: 10.10.24.14 No Options Present. Number of data bytes = 476 . --------------------------------------- Input packet 8: First the packet coming in: Router 3, Input Port A8 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 58255 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 60 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.128.255 Dest Address: 255.255.255.255 No Options Present. Number of data bytes = 1480 . Limited broadcast, to R3 software only. --------------------------------------- Input packet 9: First the packet coming in: Router 3, Input Port A9 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 61471 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 243 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.1.15 Dest Address: 10.1.1.255 No Options Present. Number of data bytes = 1480 . Direct Broadcast, from destination net: to R3 Software only. --------------------------------------- Input packet 10: First the packet coming in: Router 1, Input Port A3 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 54741 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 58 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.0.13 Dest Address: 10.10.15.255 No Options Present. Number of data bytes = 1480 . Direct Broadcast, from destination net: to R1 Software only. --------------------------------------- Input packet 11: First the packet coming in: Router 3, Input Port A10 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 43691 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 9 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.136.230 Dest Address: 10.10.16.1 No Options Present. Number of data bytes = 1480 . Packet destined for router R=3, to higher level software. --------------------------------------- Input packet 12: First the packet coming in: Router 1, Input Port A2 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 22303 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 170 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.0.13 Dest Address: 10.10.0.1 No Options Present. Number of data bytes = 1480 . Packet destined for router R=1, to higher level software. --------------------------------------- Input packet 13: First the packet coming in: Router 3, Input Port A11 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 65408 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 225 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.24.30 Dest Address: 128.235.51.10 No Options Present. Number of data bytes = 1480 . Source Network is: 8 : 10.10.24.0/22 . Destination Network (possibly after SSR rotation) is: 14 : 0.0.0.0/0 . Output Port is: A6 . Next subnet is: 3 : 10.2.16.0/20 . Forward to Next Port. Next Port is: A5 . Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 65408 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 224 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.24.30 Dest Address: 128.235.51.10 No Options Present. Number of data bytes = 1480 . --------------------------------------- Input packet 14: First the packet coming in: Router 1, Input Port A3 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 65408 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 225 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.24.30 Dest Address: 128.235.51.10 No Options Present. Number of data bytes = 1480 . Source Network is: 8 : 10.10.24.0/22 . Destination Network (possibly after SSR rotation) is: 14 : 0.0.0.0/0 . Output Port is: A2 . Next subnet is: 1 : 10.1.0.0/24 . Forward to Next Port. Next Port is: A1 . Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 65408 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 224 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.24.30 Dest Address: 128.235.51.10 No Options Present. Number of data bytes = 1480 . --------------------------------------- Input packet 15: First the packet coming in: Router 3, Input Port A11 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 65408 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 225 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.24.30 Dest Address: 10.15.170.170 No Options Present. Number of data bytes = 1480 . Source Network is: 8 : 10.10.24.0/22 . Destination Network (possibly after SSR rotation) is: 13 : 10.0.0.0/8 . Output Port is: A6 . Next subnet is: 3 : 10.2.16.0/20 . Forward to Next Port. Next Port is: A5 . Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 65408 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 224 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.24.30 Dest Address: 10.15.170.170 No Options Present. Number of data bytes = 1480 . --------------------------------------- Input packet 16: First the packet coming in: Router 1, Input Port A3 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 65408 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 225 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.24.30 Dest Address: 10.15.170.170 No Options Present. Number of data bytes = 1480 . Source Network is: 8 : 10.10.24.0/22 . Destination Network (possibly after SSR rotation) is: 13 : 10.0.0.0/8 . Unknown network, drop packet, send ICMP packet. --------------------------------------- Input packet 17: First the packet coming in: Router 3, Input Port A8 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 54956 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 4 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.131.241 Dest Address: 10.5.129.13 No Options Present. Number of data bytes = 1480 . Source Network is: 5 : 10.10.128.0/20 . Destination Network (possibly after SSR rotation) is: 9 : 10.5.128.0/22 . Output Port is: A7 . Next subnet is: 4 : 10.2.32.0/20 . Forward to Next Port. Next Port is: A12 . Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 54956 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 3 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.131.241 Dest Address: 10.5.129.13 No Options Present. Number of data bytes = 1480 . --------------------------------------- Input packet 18: First the packet coming in: Router 3, Input Port A11 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 54599 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 105 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.2.16.31 Dest Address: 10.5.132.15 No Options Present. Number of data bytes = 1480 . Source Network is: 3 : 10.2.16.0/20 . Destination Network (possibly after SSR rotation) is: 11 : 10.5.132.0/22 . Output Port is: A9 . Next subnet is: 6 : 10.1.1.0/24 . Forward to Next Port. Next Port is: A18 . Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 54599 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 104 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.2.16.31 Dest Address: 10.5.132.15 No Options Present. Number of data bytes = 1480 . --------------------------------------- Input packet 19: First the packet coming in: Router 3, Input Port A9 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 65000 ; Ident = 14588 , U = 0 , DF = 1 , M = 0 , FragOffset = 0 ; TTL = 56 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.132.22 Dest Address: 10.5.128.29 No Options Present. Number of data bytes = 64980 . Source Network is: 11 : 10.5.132.0/22 . Destination Network (possibly after SSR rotation) is: 9 : 10.5.128.0/22 . Output Port is: A7 . Next subnet is: 4 : 10.2.32.0/20 . Total Size > MTU: Fragmentation Required. But DF bit set: drop packet, send ICMP. --------------------------------------- Input packet 20: First the packet coming in: Router 3, Input Port A6 VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 65000 ; Ident = 15064 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 56 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.0.14 Dest Address: 10.2.16.254 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 12 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.10.0.1 Extra SSR adress 2 is 10.2.16.1 Extra SSR adress 3 is 10.1.1.9 Number of data bytes = 64964 . Source Network is: 1 : 10.1.0.0/24 . Destination Network (possibly after SSR rotation) is: 6 : 10.1.1.0/24 . Output Port is: A9 . Next subnet is: 6 : 10.1.1.0/24 . Direct Delivery to interface on network 6 . This may include the case of SSR. Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 65000 ; Ident = 15064 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 55 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.0.14 Dest Address: 10.1.1.9 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 16 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.10.0.1 Extra SSR adress 2 is 10.2.16.1 Extra SSR adress 3 is 10.1.1.1 Number of data bytes = 64964 . --------------------------------------- Input packet 21: First the packet coming in: Router 3, Input Port A6 VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 65000 ; Ident = 15064 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 56 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.0.14 Dest Address: 10.2.16.254 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 12 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.10.0.1 Extra SSR adress 2 is 10.2.16.1 Extra SSR adress 3 is 10.5.132.51 Number of data bytes = 64964 . Source Network is: 1 : 10.1.0.0/24 . Destination Network (possibly after SSR rotation) is: 11 : 10.5.132.0/22 . Output Port is: A9 . Next subnet is: 6 : 10.1.1.0/24 . Forward to Next Port. Next Port is: A18 . Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 9 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 65000 ; Ident = 15064 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 55 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.0.14 Dest Address: 10.5.132.51 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 15 , Pointer = 16 . Number of extra SSR addresses is 3 Extra SSR adress 1 is 10.10.0.1 Extra SSR adress 2 is 10.2.16.1 Extra SSR adress 3 is 10.1.1.1 Number of data bytes = 64964 . --------------------------------------- Input packet 22: First the packet coming in: Router 3, Input Port A9 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 17336 ; Ident = 65520 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 15 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.192.62 Dest Address: 10.10.128.55 No Options Present. Number of data bytes = 17316 . Source Network is: 10 : 10.5.192.0/22 . Destination Network (possibly after SSR rotation) is: 5 : 10.10.128.0/20 . Output Port is: A8 . Next subnet is: 5 : 10.10.128.0/20 . Direct Delivery to interface on network 5 . This may include the case of SSR. Next the fragments going out: Total Size > MTU: Fragmentation required. Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4348 ; Ident = 65520 , U = 0 , DF = 0 , M = 1 , FragOffset = 0 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.192.62 Dest Address: 10.10.128.55 No Options Present. Number of data bytes = 4328 . Fragment 2: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4348 ; Ident = 65520 , U = 0 , DF = 0 , M = 1 , FragOffset = 541 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.192.62 Dest Address: 10.10.128.55 No Options Present. Number of data bytes = 4328 . Fragment 3: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4348 ; Ident = 65520 , U = 0 , DF = 0 , M = 1 , FragOffset = 1082 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.192.62 Dest Address: 10.10.128.55 No Options Present. Number of data bytes = 4328 . Fragment 4: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4352 ; Ident = 65520 , U = 0 , DF = 0 , M = 0 , FragOffset = 1623 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.5.192.62 Dest Address: 10.10.128.55 No Options Present. Number of data bytes = 4332 . --------------------------------------- Input packet 23: First the packet coming in: Router 3, Input Port A8 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 4352 ; Ident = 56247 , U = 0 , DF = 0 , M = 1 , FragOffset = 483 ; TTL = 15 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.129.59 Dest Address: 10.10.24.170 No Options Present. Number of data bytes = 4332 . Source Network is: 5 : 10.10.128.0/20 . Destination Network (possibly after SSR rotation) is: 8 : 10.10.24.0/22 . Output Port is: A11 . Next subnet is: 8 : 10.10.24.0/22 . Direct Delivery to interface on network 8 . This may include the case of SSR. Next the fragments going out: Total Size > MTU: Fragmentation required. Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 56247 , U = 0 , DF = 0 , M = 1 , FragOffset = 483 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.129.59 Dest Address: 10.10.24.170 No Options Present. Number of data bytes = 552 . Fragment 2: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 56247 , U = 0 , DF = 0 , M = 1 , FragOffset = 552 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.129.59 Dest Address: 10.10.24.170 No Options Present. Number of data bytes = 552 . Fragment 3: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 56247 , U = 0 , DF = 0 , M = 1 , FragOffset = 621 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.129.59 Dest Address: 10.10.24.170 No Options Present. Number of data bytes = 552 . Fragment 4: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 56247 , U = 0 , DF = 0 , M = 1 , FragOffset = 690 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.129.59 Dest Address: 10.10.24.170 No Options Present. Number of data bytes = 552 . Fragment 5: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 56247 , U = 0 , DF = 0 , M = 1 , FragOffset = 759 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.129.59 Dest Address: 10.10.24.170 No Options Present. Number of data bytes = 552 . Fragment 6: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 56247 , U = 0 , DF = 0 , M = 1 , FragOffset = 828 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.129.59 Dest Address: 10.10.24.170 No Options Present. Number of data bytes = 552 . Fragment 7: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 572 ; Ident = 56247 , U = 0 , DF = 0 , M = 1 , FragOffset = 897 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.129.59 Dest Address: 10.10.24.170 No Options Present. Number of data bytes = 552 . Fragment 8: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 488 ; Ident = 56247 , U = 0 , DF = 0 , M = 1 , FragOffset = 966 ; TTL = 14 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.129.59 Dest Address: 10.10.24.170 No Options Present. Number of data bytes = 468 . --------------------------------------- Input packet 24: First the packet coming in: Router 3, Input Port A8 VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 59245 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 57 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.128.255 Dest Address: 10.2.47.255 No Options Present. Number of data bytes = 1480 . Direct Broadcast, from network 5 to network 4 . To router R3 higher level software and broadcast to network 4 Source Network is: 5 : 10.10.128.0/20 . Destination Network (possibly after SSR rotation) is: 4 : 10.2.32.0/20 . Output Port is: A7 . Next subnet is: 4 : 10.2.32.0/20 . Direct Delivery to interface on network 4 . This may include the case of SSR. Next the fragments going out: Fragment 1: VERS = 4 , HLEN = 5 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 1500 ; Ident = 59245 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 56 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.10.128.255 Dest Address: 10.2.47.255 No Options Present. Number of data bytes = 1480 . --------------------------------------- Input packet 25: First the packet coming in: Router 3, Input Port A6 VERS = 4 , HLEN = 10 , DSCP = 0 , ECT = 0 , CE = 0 , TL = 65000 ; Ident = 22190 , U = 0 , DF = 0 , M = 0 , FragOffset = 0 ; TTL = 58 , Prot = 6 , H.Checksum = 0 ; Source Address: 10.1.0.13 Dest Address: 10.2.16.254 2 Options Present. Option 1 is 1 : No-Op. Option 2 is 137 : Strict Source Route, Length = 19 , Pointer = 12 . Number of extra SSR addresses is 4 Extra SSR adress 1 is 10.10.0.1 Extra SSR adress 2 is 10.2.16.1 Extra SSR adress 3 is 10.5.192.254 Extra SSR adress 4 is 10.5.132.206 Number of data bytes = 64960 . Strict Source Route and next address not Directly Reachable: drop packet, send ICMP.