Well I found the problem.
The central switch/router for some reason forgets its default route
(3com 4900sx). Thereby making it look like the gateway is dropping
forwarded packets.
My mistake for not checking for the packets with tcpdump in the first
place. They simply weren't there, there was nothing for linux to
forward. Doh.
Thankfully the unit was already scheduled to be replaced soon.
Sorry for the noise.
--
Aleksander Kamenik
System Administrator
Krediidiinfo AS
an Experian Company
Phone: +372 665 9649
Email: aleksander@xxxxxxxxxxxxxxx
http://www.krediidiinfo.ee/
http://www.experiangroup.com/
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