[Bridge] 802.1q packets

Leigh Sharpe lsharpe at pacificwireless.com.au
Sun Jun 29 22:53:50 PDT 2008

I had a similar problem not long ago. Make sure that ip_conntrack is not
loaded. In my case, it was re-assembling all fragmented packets passing
through the bridge, and not fragmenting them again. The resulting large
packet was too big for the interface, and it got dropped. 

Leigh Sharpe
Network Systems Engineer
Pacific Wireless
Ph +61 3 9584 8966
Mob 0408 009 502
Helpdesk 1300 300 616
email lsharpe at pacificwireless.com.au
web www.pacificwireless.com.au

-----Original Message-----
From: bridge-bounces at lists.linux-foundation.org
[mailto:bridge-bounces at lists.linux-foundation.org] On Behalf Of Fulvio
Sent: Saturday, 28 June 2008 2:56 PM
To: bridge at osdl.org
Subject: [Bridge] 802.1q packets


I notice that with the Kernel the 802.1q VLAN
tagged packets larger than 1470 bytes are not forwarded at
all by a bridge.
I think there is a bad interaction between bridge and
netfilter codes. Any chance to a have a patch to solve this
problem that limit the possibility to use the Linux bridges
in a environment with VLANs?

Best Regards
Fulvio Ricciardi

Fulvio Ricciardi
web: http://www.zeroshell.net/eng/
skype: zeroshellnet
Phone: +3908321835630
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