2.1.109pre2 ppp/tcpdump strangeness

Pete Clements (clem@clem.digital.net)
Tue, 14 Jul 1998 19:52:06 -0400 (EDT)


Following is a tcpdump of ppp0 link with 2.1.109pre2. Do not see
this behavior on eth0. The frag entries are inbound packets to
204.215.239.73. Link is working fine.
-- 
Pete Clements 
clem@clem.digital.net

17:53:53.497600 64.17.32.133 > 198.69.104.232: (frag 17664:-27@4256) [tos 0x3] (ttl 109, bad cksum 0!, optlen=40[|ip]) 17:53:53.537589 64.17.31.213 > 198.69.104.232: (frag 17664:-27@3616) [tos 0x3] (ttl 110, bad cksum 0!, optlen=40[|ip]) 17:53:53.677552 204.215.239.73 > 198.69.104.232: icmp: 204.215.239.73 udp port 520 unreachable [tos 0xc0] (ttl 255, id 270) 17:53:53.837509 204.215.239.73 > 198.69.104.232: icmp: 204.215.239.73 udp port 520 unreachable [tos 0xc0] (ttl 255, id 271) 17:54:21.410375 204.215.239.73.123 > 192.43.244.18.123: v3 client strat 2 poll 6 prec -17 dist 0.220046 disp 1.034942 ref 192.5.41.41@3109441936.697572708 orig 3109441997.475163459 [|ntp] (ttl 64, id 274) 17:54:21.680307 18.17.124.158 > 192.43.244.18: (frag 17664:-27@608) [tos 0x3] (ttl 187, bad cksum 0!, optlen=40[|ip]) 17:54:22.410125 204.215.239.73.123 > 132.163.135.130.123: v3 client strat 2 poll 6 prec -17 dist 0.220046 disp 1.034957 ref 192.5.41.41@3109441936.697572708 orig 3109441998.558169364 [|ntp] (ttl 64, id 275) 17:54:22.670060 13.17.122.95 > 132.163.135.130: (frag 17664:-27@608) [tos 0x3] (ttl 106, bad cksum 0!, optlen=40[|ip]) 17:54:23.397432 204.215.239.73.123 > 192.5.41.40.123: v3 client strat 2 poll 6 prec -17 dist 0.230056 disp 0.959274 ref 132.163.135.130@3109442062.670805931 orig 3109441999.472147941 [|ntp] (ttl 64, id 276) 17:54:23.620221 51.17.130.89 > 192.5.41.40: (frag 17664:-27@608) [tos 0x3] (ttl 95, bad cksum 0!, optlen=40[|ip]) 17:54:24.371268 204.215.239.73.123 > 192.5.41.41.123: v3 client strat 2 poll 6 prec -17 dist 0.230056 disp 0.959289 ref 132.163.135.130@3109442062.670805931 orig 3109442000.521695137 [|ntp] (ttl 64, id 277) 17:54:24.587457 51.17.171.187 > 192.5.41.41: (frag 17664:-27@608) [tos 0x3] (ttl 54, bad cksum 0!, optlen=40[|ip]) 17:54:24.980527 64.17.24.133 > 198.69.104.232: (frag 17664:-27@4256) [tos 0x3] (ttl 117, bad cksum 0!, optlen=40[|ip]) 17:54:25.020179 64.17.23.213 > 198.69.104.232: (frag 17664:-27@3616) [tos 0x3] (ttl 118, bad cksum 0!, optlen=40[|ip]) 17:54:25.160164 204.215.239.73 > 198.69.104.232: icmp: 204.215.239.73 udp port 520 unreachable [tos 0xc0] (ttl 255, id 278) 17:54:25.330146 204.215.239.73 > 198.69.104.232: icmp: 204.215.239.73 udp port 520 unreachable [tos 0xc0] (ttl 255, id 279) 17:54:37.928814 44.6.125.28 > 128.214.248.27: (frag 17664:-27@384) [tos 0x3] (ttl 156, optlen=40[|ip]) 17:54:37.928814 204.215.239.73.25 > 128.214.248.27.4699: S 3293083677:3293083677(0) ack 1562045764 win 14600 <mss 1460,nop,wscale 0> (DF) (ttl 64, id 280) 17:54:38.258779 truncated-ip - 3 bytes missing!44.6.124.223 > 128.214.248.27: (frag 17664:-13@320) [tos 0x3] (ttl 156, optlen=40[|ip]) 17:54:38.288776 204.215.239.73.1026 > 128.214.248.27.113: S 3295496439:3295496439(0) win 15928 <mss 1460,sackOK,timestamp 72647 0,nop,wscale 0> (DF) (ttl 64, id 285)

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