Re: CentOS 6 bridging problem.

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tcpdump -n -i eth0.20
shows that there is no traffic when I try to ping 10.20.0.108.

Best regards,
R.

2012/6/26 Rafał Radecki <radecki.rafal@xxxxxxxxx>:
> ip route show
> 192.168.2.0/24 dev vmbr0  proto kernel  scope link  src 192.168.2.203
> 193.218.152.0/24 dev vmbr0  proto kernel  scope link  src 193.218.152.219
> 10.20.0.0/16 dev vmbr20  proto kernel  scope link  src 10.20.0.108
> 169.254.0.0/16 dev vmbr0  scope link  metric 1003
> 169.254.0.0/16 dev vmbr20  scope link  metric 1006
> default via 193.218.152.1 dev vmbr0
>
> ip addr show
> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
>    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
>    inet 127.0.0.1/8 scope host lo
>    inet6 ::1/128 scope host
>       valid_lft forever preferred_lft forever
> 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
> state UNKNOWN qlen 1000
>    link/ether 00:25:22:0d:c2:2a brd ff:ff:ff:ff:ff:ff
>    inet6 fe80::225:22ff:fe0d:c22a/64 scope link
>       valid_lft forever preferred_lft forever
> 3: vmbr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
> state UNKNOWN
>    link/ether 00:25:22:0d:c2:2a brd ff:ff:ff:ff:ff:ff
>    inet 193.218.152.219/24 brd 193.218.152.255 scope global vmbr0
>    inet 192.168.2.203/24 brd 192.168.2.255 scope global vmbr0:1
>    inet6 fe80::225:22ff:fe0d:c22a/64 scope link
>       valid_lft forever preferred_lft forever
> 4: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc
> noqueue state UNKNOWN
>    link/void
>    inet6 fe80::1/128 scope link
>       valid_lft forever preferred_lft forever
> 5: eth0.20@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
> noqueue state UP
>    link/ether 00:25:22:0d:c2:2a brd ff:ff:ff:ff:ff:ff
>    inet6 fe80::225:22ff:fe0d:c22a/64 scope link
>       valid_lft forever preferred_lft forever
> 6: vmbr20: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
> state UNKNOWN
>    link/ether 00:25:22:0d:c2:2a brd ff:ff:ff:ff:ff:ff
>    inet 10.20.0.108/16 brd 10.20.255.255 scope global vmbr20
>    inet6 fe80::225:22ff:fe0d:c22a/64 scope link
>       valid_lft forever preferred_lft forever
>
> Any clue?
>
> Best regards,
> Rafal Radecki.
>
> 2012/6/25 Gordon Messmer <yinyang@xxxxxxxxx>:
>> On 06/25/2012 05:22 AM, Rafał Radecki wrote:
>>> Do you see an error in my configuration? Why is 10.20.0.108 not available?
>>
>> Not immediately, but check the output of the 'ip' tools.  ifconfig and
>> route are deprecated:
>>
>> ip route show
>> ip addr show
>>
>> Finally, see if there's any incoming traffic on the tagged interface:
>>
>> tcpdump -n -i eth0.20
>>
>> ... while you ping the assigned address.
>>
>>
>>
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