[Bridge] VLAN headers disappearing

Benny Amorsen benny+usenet at amorsen.dk
Tue Jan 30 13:31:39 PST 2007

>>>>> "LS" == Leigh Sharpe <lsharpe at pacificwireless.com.au> writes:

LS> Results in lots of log entries in /var/log/messages, as one would
LS> expect. However,

LS> ebtables -F ebtables -A FORWARD -p 8021q --log -j ACCEPT

LS> Results in absolutely nothing in /var/log/messages, which would
LS> indicate that at some point, the VLAN headers are disappearing
LS> from my bridged packets.

Cards with hardware accelerated VLAN's eat the 802.1q headers. It is
very annoying. You can recompile the driver with VLAN acceleration
turned off in most cases, but that is hardly a nice solution.


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