Re: net interface direct - no IP communication between guest & host

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On Tue, Oct 24, 2017 at 03:52:52PM +0100, lejeczek wrote:
> hi everyone
> 
> I wonder why, when I attach an interface like this:
> 
> virsh # attach-interface --domain win10Ent --type direct --source nm-team
> --config --persistent --model virtio
> 
> host cannot ip ping the guest and vice versa, yet guest can ping other
> nodes(outside of its host, connected via phys net via a switch)
> 
> Would you know?
> 
> I thought maybe routing on the host, so I did:
> $ route add -host 192.168.2.222 dev nm-team
> 
> but to no avail.
> 
> I wonder if it's lower layer, arp kernel bits?

I expect you'll be hitting this unfortunate gotcha:

https://wiki.libvirt.org/page/TroubleshootMacvtapHostFail

Regards,
Daniel
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