Re: libipq: problems changing destination port

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 31 Oct 2005, Lore wrote:

16:27:50.094991 IP (tos 0x0, ttl  64, id 39743, offset
0, flags [DF], proto: TCP (6), length: 60)
192.168.0.4.32788 > geronte.cs.unibo.it.2026: S, cksum
0x5034 (correct), 2890202236:2890202236(0) win 5840
<mss 1460,sackOK,timestamp 14378819 0,nop,wscale 2>

16:27:50.119230 IP (tos 0x0, ttl  64, id 625, offset
0, flags [DF], proto: TCP (6), length: 40)
192.168.0.4.32788 > geronte.cs.unibo.it.2026: R, cksum
0x36fd (correct), 2890202237:2890202237(0) win 0

Looks like you suceeded just fine, but failed to undo your rewrite on return traffic...

in the above return traffic seems missing. The picture I see is


192.168.0.4.32788 -> geronte.cs.unibo.it.2026 (2022) SYN

[not shown]
geronte.cs.unibo.it.2026 -> 192.168.0.4.32788 SYN+ACK

192.168.0.4.32788 -> geronte.cs.unibo.it.2026 RESET

Where I suspect the RESET is actually "I have no interest in talking to geronte.cs.unibo.it:2026, go agay please! I want to talk to geronte.cs.unibo.it:2022".


Does this make any sense to you?

Regards
Henrik


[Index of Archives]     [Linux Netfilter Development]     [Linux Kernel Networking Development]     [Netem]     [Berkeley Packet Filter]     [Linux Kernel Development]     [Advanced Routing & Traffice Control]     [Bugtraq]

  Powered by Linux