[Bug 1006898] Re: [SRU] dnsmasq fails at leasing issues when using vlan mode

[Steve Langasek]

I'm afraid I also don't understand this problem statement:

> There is an issue with the way nova uses dnsmasq in VLAN mode. It starts
> up a single copy of dnsmasq for each vlan on the network host (or on
> every host in multi_host mode). The problem is in the way that dnsmasq
> binds to an ip address and port[2]. Both copies can respond to broadcast
> packet, but unicast packets can only be answered by one of the copies.

What exactly is the network configuration that allows this to happen?
Does the host have multiple vlan interfaces using the same IP address?

That's the only scenario I see in which SO_BINDTODEVICE should make a
difference; but I don't understand why you would be using the same IP
address on multiple interfaces, virtual or otherwise.

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Title:
  [SRU] dnsmasq fails at leasing issues when using vlan mode

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