Re: iptables as landmine subnet rejector

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On Thu, Nov 14, 2013 at 09:12:07AM -0800, Jim Mellander wrote:
> tcpdump output:
> 1384448210.669303 IP bad_host.23870 > landmine_host.61871: UDP, length 20
> 1384448210.669325 IP myip > bad_host ICMP bad_host udp port 61871
> unreachable, length 56
> 
> Note that the ICMP port unreachable didn't come from landmine_host, as expected.

That is how the REJECT target works.  The ICMP will come from the gateway.

Phil
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