Hi, I had successfully setup my bridge (br0) but after few minutes the br0 interface seems not working. 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 I check on my system's /var/log/syslog file. It shows something strange messages 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. I unplug the network cable connected to the eth5 and run a ping to my router...the network is up again...I am able to ping my router. Then, I plug the network cable to the eth5 interface again...I run the ping to my router and suddenly I can't ping my router. The same error messages pops out in the /var/log/syslog file. How can I solve this issue? Regards, ro0ot