Have you looked at your spanning-tree? I had something similar happen to me because of a malfunctioning gig port. I would have sworn I didn't have a loop, but it ended up being a port was sending that by all appearances was blocking. We found many instances of the same packet circling through our switches by using a sniffer.
r34rv13wm1rr0r wrote: > > This is from a tcpdump off of one of my core switches. It > appears that it is > logging a duplicate packet with the same SEQ #. Does any one > have any idea > why this is occuring? > > Thanks, > > A > > 11:18:04.688408 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 1:65(64) ack 49 > win 8320NBT Packet (DF) > 11:18:04.688409 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 1:65(64) ack 49 > win 8320NBT Packet (DF) > > 11:18:04.688643 172.X.103.10.netbios-ssn > 172.X.15.15.1503: P > 158405518:158405625(107) ack 1210141117 win 8608NBT Packet (DF) > 11:18:04.688644 172.X.103.10.netbios-ssn > 172.X.15.15.1503: P > 0:107(107) ack > 1 win 8608NBT Packet (DF) > > 11:18:04.688645 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 65:119(54) ack > 98 win 8271NBT Packet (DF) > 11:18:04.688646 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 65:119(54) ack > 98 win 8271NBT Packet (DF) > > 11:18:04.688883 X.X.6.3.http > 172.X.14.50.1123: . ack > 4294967295 win 8155 > (DF) > 11:18:04.688885 X.X.6.3.http > 172.X.14.50.1123: . ack > 4294967295 win 8155 > (DF) > > 11:18:04.688886 172.23.27.10.3021 > 172.X.15.10.netbios-ssn: P > 3194256684:3194256844(160) ack 95965178 win 7515NBT Packet (DF) > 11:18:04.688887 172.23.27.10.3021 > 172.X.15.10.netbios-ssn: P > 0:160(160) ack > 1 win 7515NBT Packet (DF) > > 11:18:04.688888 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 119:173(54) ack > 147 win 8222NBT Packet (DF) > 11:18:04.688889 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 119:173(54) ack > 147 win 8222NBT Packet (DF) > > 11:18:04.688890 172.X.15.15.1503 > 172.X.103.10.netbios-ssn: P > 1:161(160) ack > 107 win 7996NBT Packet (DF) > 11:18:04.688891 172.X.15.15.1503 > 172.X.103.10.netbios-ssn: P > 1:161(160) ack > 107 win 7996NBT Packet (DF) > > 11:18:04.689183 172.X.15.10.netbios-ssn > 172.23.27.10.3021: P > 1:129(128) ack > 160 win 8138NBT Packet (DF) > 11:18:04.689185 172.X.15.10.netbios-ssn > 172.23.27.10.3021: P > 1:129(128) ack > 160 win 8138NBT Packet (DF) > > 11:18:04.689186 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 173:255(82) ack > 196 win 8173NBT Packet (DF) > 11:18:04.689187 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 173:255(82) ack > 196 win 8173NBT Packet (DF) > > 11:18:04.689188 172.X.15.151.ssh > 172.X.53.186.1219: P > 2849560709:2849560801(92) ack 2980294350 win 9648 (DF) [tos > 0x10] > 11:18:04.689189 172.X.15.151.ssh > 172.X.53.186.1219: P > 0:92(92) ack 1 win > 9648 (DF) [tos 0x10] > > 11:18:04.689192 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 255:309(54) ack > 245 win 8124NBT Packet (DF) > 11:18:04.689193 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 255:309(54) ack > 245 win 8124NBT Packet (DF) > > 11:18:04.689608 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 309:363(54) ack > 294 win 8075NBT Packet (DF) > 11:18:04.689609 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 309:363(54) ack > 294 win 8075NBT Packet (DF) > > 11:18:04.689610 172.X.243.6.printer > 172.X.240.10.723: . ack > 4096314569 win > 2144 > 11:18:04.689610 172.X.243.6.printer > 172.X.240.10.723: . ack 1 > win 2144 > > 11:18:04.689611 172.X.53.186.1219 > 172.X.15.151.ssh: P > 1:45(44) ack 92 win > 16724 (DF) > 11:18:04.689612 172.X.53.186.1219 > 172.X.15.151.ssh: P > 1:45(44) ack 92 win > 16724 (DF) > > 11:18:04.689614 172.X.61.103.1066 > 172.X.15.49.netbios-ssn: P > 294:343(49) ack > 363 win 7380NBT Packet (DF) [tos 0x4] > 11:18:04.718183 172.X.61.103.1066 > 172.X.15.49.netbios-ssn: P > 6762:6811(49) > ack 8223 win 8397NBT Packet (DF) [tos 0x4] > > 11:18:04.718187 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 8223:8287(64) > ack 6811 win 7438NBT Packet (DF) > 11:18:04.718188 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 8223:8287(64) > ack 6811 win 7438NBT Packet (DF) > > 11:18:04.718423 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 8287:8341(54) > ack 6860 win 7389NBT Packet (DF) > 11:18:04.718424 172.X.15.49.netbios-ssn > 172.X.61.103.1066: P > 8287:8341(54) > ack 6860 win 7389NBT Packet (DF) > > 11:18:04.718425 172.X.240.220.6103 > 172.X.15.68.4720: . > 2920:4380(1460) ack 1 > win 16816 (DF) > 11:18:04.718586 172.X.240.220.6103 > 172.X.15.68.4720: . > 4380:5840(1460) ack 1 > win 16816 (DF) > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=53027&t=53024 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
