Telling BSD to stop resetting the connection!
Julian Elischer
julian at elischer.org
Wed Jan 11 17:55:07 PST 2006
Dan Joumaa wrote:
> Hello,
>
> I'm trying to code a software gateway with divert sockets. So far
> basic things are working, but the net stack constantly resets the
> connection whenever a SYN-ACK is sent to it.
>
> 103 9.443254 192.168.1.6 -> 205.166.76.40 TCP pacmand > https [SYN]
> Seq=0 Ack=0 Win=2920 Len=0 MSS=536
> 104 9.443364 192.168.1.2 -> 205.166.76.40 TCP pacmand > https [SYN]
> Seq=0 Ack=0 Win=2920 Len=0 MSS=536
> 105 9.443617 192.168.1.6 -> 205.166.76.40 TCP pacmand > https [SYN]
> Seq=0 Ack=0 Win=2920 Len=0 MSS=536
> 106 9.443654 192.168.1.2 -> 205.166.76.40 TCP pacmand > https [SYN]
> Seq=0 Ack=0 Win=2920 Len=0 MSS=536
> 107 9.496102 205.166.76.40 -> 192.168.1.2 TCP https > pacmand [SYN,
> ACK] Seq=0 Ack=1 Win=1608 Len=0 MSS=1460
> 108 9.496185 192.168.1.2 -> 205.166.76.40 TCP pacmand > https [RST]
> Seq=1 Ack=341266652 Win=0 Len=0
>
> (192.168.1.1 = next hop, 192.168.1.2 = this computer, 192.168.1.6 =
> the client)
sounds like the SYN ACK is not getting diverted?
>
> Any ideas on how to stop the net stack from resetting my connections,
> preferably programmatically?
>
> --ness
>
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