IP hack theorizing

[Alex Pennace]

On Tue, Oct 10, 2006 at 02:36:17PM -0400, Tom Metro wrote:
> Or corrected. I believe modern software firewalls, like iptables, 
> perform a number of sanity checks on packets before they hit the kernel. 
> For example, here's a recent log entry triggered by iptables when it 
> didn't like the window size specified in a packet:
> 
>  ... TCP: Treason uncloaked! Peer 192.168.0.200:873/59982 shrinks 
> window 1150916075:1150916611. Repaired.

That message is from the underlying Linux TCP/IP stack, not iptables
(I get similar messages on my system, which does not have iptables).

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