On Wed, 05 Jan 2005 01:50:32 +0800
ro0ot <ro0ot@phreaker.net> wrote:
> Hi,
>
> I had setup my bridge (br0) as below: -
>
> ifconfig eth0 0.0.0.0
> ifconfig eth5 0.0.0.0
>
> brctl addbr br0
>
> brctl addif br0 eth0
> brctl addif br0 eth5
>
> brctl stp br0 on
>
> Once I connect both the interface (eth0 and eth5) to my network. I
> can't ping to my router (connect to eth0) or ping to my other IP
> addresses (connect to eth5). I check around and found out some messages
> pops up in /var/log/syslog file as below: -
>
> Jan 2 10:44:22 fw01 kernel: ipt_tcpmss_target: bad length (64 bytes)
> Jan 2 10:44:32 fw01 last message repeated 11 times
> Jan 2 12:27:08 fw01 kernel: Neighbour table overflow.
> Jan 2 12:27:11 fw01 last message repeated 9 times
> Jan 2 12:27:13 fw01 kernel: NET: 10 messages suppressed.
> Jan 2 12:27:13 fw01 kernel: Neighbour table overflow.
> Jan 2 12:27:18 fw01 kernel: NET: 27 messages suppressed.
> Jan 2 12:27:18 fw01 kernel: Neighbour table overflow.
>
> Once I disconnect the cable from the eth5 interface, I can ping to my
> router. I try to reconnect the cable back to the eth5 interface and run
> a ping to my router. As the result, I can't ping the router and the
> similar messages pops up in the /var/log/syslog file.
>
> How can I resolve this issue?
>
>
It is an iptables/ebtables issue, you should check with
netfilter-user@lists.netfilter.org or ebtables-user@lists.sourceforge.net