[pve-devel] [PATCH] add routed network mode

[Dietmar Maurer]

> I understand now,
> as the tap interface is not plugged on a bridge, the tap mac address is
> unknown on the network.

yes (it only works locally).
 
> So if an external client try to do an arp request : which mac has the ip
> X.X.X.X, I don't get any reply.

exactly

> So we need to use proxy-arp, to get macaddress of host instead tap
> interface.
> 
> Do you really need proxy-arp on $external_iface ?

I though both is needed -  but I will retest tomorrow.