On Jul 26, 2014, at 2:05 PM, Jonathan Rudenberg <[email protected]> wrote:

> I’m running into an issue with libvirt-lxc networking. I have an init program 
> that configures the eth0 interface with an IP and gateway when the container 
> starts. I noticed that programs running in the container encountered “no 
> route to host” errors and looked into it further. What I found is that ARP 
> packets are not making it onto the gateway during the first few seconds of 
> the container’s life.

I found the issue: STP was enabled on the virbr0 which spends 2s in each of the 
Listening and Learning states by default before enabling the interface.

A simple `brctl stp virbr0 off` solves this issue.

Jonathan

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