On 12/26/2017 12:08 AM, netsurfed wrote:
Hi all,
  I have a physical interface with an IP, and can connect with another machine by "ping" cmd. However, after adding to a ovs bridge, It can no longer be connected with any other machine by "ping" cmd, although the IP is still there.
  I wonder if this is normal ? And why not be connected by "ping" cmd ?
  THX.

I tried to monitor the interface with "tcpdump". The target machine has returned the ARP Reply, but the HWaddress in ARP is still incomplete.

My OVS version is "2.8.90", and OS is "Ubuntu 16.04.2 LTS".
root@node26:~# uname -a
Linux node26 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux



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Once you assign a physical interface to a bridge, any bridge, not just OVS bridges, then you need to reassign the IP address to the bridge and remove it from the physical interface.

There is a lot of documentation out there on how to configure bridges.

https://help.ubuntu.com/community/NetworkConnectionBridge

Thanks,

- Greg
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