[pve-devel] qemu nat mode and rate limiting ?

Dietmar Maurer dietmar at proxmox.com
Tue Mar 5 10:25:47 CET 2013

> >>Sure, we just need to add a correct route.
> Ok, it's clear.
> So, we need to known the guest ip.
> We should add a ip address option in guest vm config file.

Address with  optional netmask  specified  in  the  CIDR   notation   (e.g.

> If user don't use dhcp in his guest, he must set the same ip in the guest
> If user use dhcp in guest,
>  we can add an option to activate an dhcp server on proxmox host,
>  re-use vm config file to assign ip address
>  This dhcp server should works only inside host.
>  It could be great to have dhcp leases across the cluster.
> I don't known if it's possible to write a small dhcp server in perl ?

I guess it is easier to use 'dnsmasq':


or something similar.
> >>Not sure how to handle that when we migrate a VM.
> Simply add/remove route at in qemu-migrate ?

You need to notify other hosts that the IP has moved.

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