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frank_thyes_309's avatar
frank_thyes_309
Icon for Nimbostratus rankNimbostratus
Oct 12, 2012

IP forwarding

Hi Group,   we are migrating from PA address space to our own PI address space. Cooperation partners using domains like this: my.company.partner.com which point to our main IP address i.e 1.1.1.1,...
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frank_thyes_309's avatar
frank_thyes_309
Icon for Nimbostratus rankNimbostratus
Oct 13, 2012
The old bigip device is using a default route, reachable through the self ip 123.123.123.123

 

 

[root@lb2:Active] config tcpdump -nni 0.0:nnn -s0 host 1.1.1.1 or host 2.2.2.2 and port 80

 

tcpdump: verbose output suppressed, use -v or -vv for full protocol decode

 

listening on 0.0:nnn, link-type EN10MB (Ethernet), capture size 65535 bytes

 

17:51:22.351698 IP 123.123.123.123.55841 > 2.2.2.2.80: S 3039961864:3039961864(0) win 5840 out slot1/tmm1 lis= flowtype=130 flowid=D10F1C0 peerid=1A3A6E40 conflags=E26 inslot=0 inport=0 haunit=0 peerremote=00000000:00000000:0000FFFF:D4121204 peerlocal=00000000:00000000:0000FFFF:BCAEB90A remoteport=55841 localport=80 proto=0 vlan=4094

 

17:51:22.364182 IP 2.2.2.2.80 > 123.123.123.123.55841: S 1491322061:1491322061(0) ack 3039961865 win 5792 in slot1/tmm1 lis= flowtype=130 flowid=D10F1C0 peerid=1A3A6E40 conflags=E26 inslot=0 inport=512 haunit=0 peerremote=00000000:00000000:0000FFFF:D4121204 peerlocal=00000000:00000000:0000FFFF:BCAEB90A remoteport=55841 localport=80 proto=0 vlan=4094

 

17:51:22.364714 IP 123.123.123.123.55841 > 2.2.2.2.80: . ack 1 win 46 out slot1/tmm1 lis= flowtype=130 flowid=D10F1C0 peerid=1A3A6E40 conflags=E26 inslot=0 inport=0 haunit=0 peerremote=00000000:00000000:0000FFFF:D4121204 peerlocal=00000000:00000000:0000FFFF:BCAEB90A remoteport=55841 localport=80 proto=0 vlan=4094

 

17:51:22.369011 IP 123.123.123.123.55841 > 2.2.2.2.80: P 1:156(155) ack 1 win 46 out slot1/tmm1 lis= flowtype=130 flowid=D10F1C0 peerid=1A3A6E40 conflags=E26 inslot=0 inport=0 haunit=0 peerremote=00000000:00000000:0000FFFF:D4121204 peerlocal=00000000:00000000:0000FFFF:BCAEB90A remoteport=55841 localport=80 proto=0 vlan=4094

 

17:51:22.381035 IP 2.2.2.2.80 > 123.123.123.123.55841: . ack 156 win 429 in slot1/tmm1 lis= flowtype=130 flowid=D10F1C0 peerid=1A3A6E40 conflags=E26 inslot=0 inport=512 haunit=0 peerremote=00000000:00000000:0000FFFF:D4121204 peerlocal=00000000:00000000:0000FFFF:BCAEB90A remoteport=55841 localport=80 proto=0 vlan=4094

 

17:51:22.381317 IP 2.2.2.2.80 > 123.123.123.123.55841: P 1:284(283) ack 156 win 429 in slot1/tmm1 lis= flowtype=130 flowid=D10F1C0 peerid=1A3A6E40 conflags=E26 inslot=0 inport=512 haunit=0 peerremote=00000000:00000000:0000FFFF:D4121204 peerlocal=00000000:00000000:0000FFFF:BCAEB90A remoteport=55841 localport=80 proto=0 vlan=4094

 

17:51:22.381771 IP 123.123.123.123.55841 > 2.2.2.2.80: . ack 284 win 54 out slot1/tmm1 lis= flowtype=130 flowid=D10F1C0 peerid=1A3A6E40 conflags=E26 inslot=0 inport=0 haunit=0 peerremote=00000000:00000000:0000FFFF:D4121204 peerlocal=00000000:00000000:0000FFFF:BCAEB90A remoteport=55841 localport=80 proto=0 vlan=4094

 

17:51:22.385329 IP 123.123.123.123.55841 > 2.2.2.2.80: F 156:156(0) ack 284 win 54 out slot1/tmm1 lis= flowtype=130 flowid=D10F1C0 peerid=1A3A6E40 conflags=E26 inslot=0 inport=0 haunit=0 peerremote=00000000:00000000:0000FFFF:D4121204 peerlocal=00000000:00000000:0000FFFF:BCAEB90A remoteport=55841 localport=80 proto=0 vlan=4094

 

17:51:22.397684 IP 2.2.2.2.80 > 123.123.123.123.55841: F 284:284(0) ack 157 win 429 in slot1/tmm1 lis= flowtype=130 flowid=D10F1C0 peerid=1A3A6E40 conflags=E26 inslot=0 inport=512 haunit=0 peerremote=00000000:00000000:0000FFFF:D4121204 peerlocal=00000000:00000000:0000FFFF:BCAEB90A remoteport=55841 localport=80 proto=0 vlan=4094

 

17:51:22.397817 IP 123.123.123.123.55841 > 2.2.2.2.80: . ack 285 win 54 out slot1/tmm1 lis= flowtype=130 flowid=D10F1C0 peerid=1A3A6E40 conflags=E26 inslot=0 inport=0 haunit=0 peerremote=00000000:00000000:0000FFFF:D4121204 peerlocal=00000000:00000000:0000FFFF:BCAEB90A remoteport=55841 localport=80 proto=0 vlan=4094