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 From:  "Molle Bestefich" <molle dot bestefich at gmail dot com>
 To:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] problem when using VLANs and NAT
 Date:  Mon, 12 Jun 2006 13:28:35 +0200
In case anyone is interested, after a couple of days of work I finally
found the problem.

Turns out that the box behind my m0n0wall transmitted packets with a
wrong TCP checksum.

m0n0wall dropped the packets (as expected), but logged nothing in the
firewall log !!

Needless to say, I'm not impressed...