[lxc-users] Networking: virtual interface name

[Jäkel, Guido]

>On 08/13/2014 07:31 PM, Garrett Gauthier wrote:
>
>
>
>	To keep accounting for network traffic for each container, I need to know the virtual interface name.  The problem is
>that each time my container starts I get a new interface created on the host, something like vethCSR894, it is never the same.
>I have tried by using lxc.network.veth.pair but that parameter is ignored and a new interace pair is cerated each time
>VETH##### (Host) ↔ ETH0 (Container).
>
>	So bottom line I want to create a virtual interface that is connected to my bridge and force the container to use that
>interface each time.
>
>
>	 I used Cacti but any tool has the same issue as the interface name is randomly generated each time the container
>starts.
>
>	Any help would be appreciated.
>
>
>
>It works for me:
>
>lxc.network.veth.pair = veth_da-ipa-0


I'm even using something like

	lxc-start [...] -s lxc.network.veth.pair=$CONTAINER

in my lxc wrapper. Notice, that you can't "overwrite" an existing config file entry because multiple container interfaces are declared by repeating the "lxc.network" tags.


Guido