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Avila:~# brctl addbr br0
Bridge firewalling registered
Avila:~# ping -c 3 192.168.1.10
PING 192.168.1.10 (192.168.1.10) 56(84) bytes of data.
64 bytes from 192.168.1.10: icmp_seq=1 ttl=64 time=3.32 ms
64 bytes from 192.168.1.10: icmp_seq=2 ttl=64 time=0.311 ms
64 bytes from 192.168.1.10: icmp_seq=3 ttl=64 time=0.302 ms

--- 192.168.1.10 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 0.302/1.313/3.326/1.423 ms
Avila:~# brctl addif br0 eth0
device eth0 entered promiscuous mode
Avila:~# ping -c 3 192.168.1.10
PING 192.168.1.10 (192.168.1.10) 56(84) bytes of data.

--- 192.168.1.10 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2009ms

Avila:~# brctl delif br0 eth0
device eth0 left promiscuous mode
br0: port 1(eth0) entering disabled state
Avila:~# ping -c 3 192.168.1.10
PING 192.168.1.10 (192.168.1.10) 56(84) bytes of data.
64 bytes from 192.168.1.10: icmp_seq=1 ttl=64 time=1.97 ms
64 bytes from 192.168.1.10: icmp_seq=2 ttl=64 time=0.471 ms
64 bytes from 192.168.1.10: icmp_seq=3 ttl=64 time=0.384 ms

--- 192.168.1.10 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 0.384/0.944/1.977/0.731 ms