On Thu, Aug 4, 2016 at 6:27 AM, Subhendu Ghosh <sghosh@redhat.com> wrote:
Not built into ovirt AFAIK,  but an ebtables rule can allow you to filter out mac+ip combinations 

Look at the anti-spoofing rules on ebtables.netfilter.org

It doesn't prevent the user adding it in the vm, but the infrastructure blocks it's usage.

From: Bill Bill <jax2568@outlook.com>
Sent: Aug 3, 2016 22:40
To: users@ovirt.org
Subject: [ovirt-users] IP Address Stealing

Hello,

 

It is possible to prevent a VM from adding an IP? For example, if we provision a VM with one IP, if the user has root access they can simply add random IP’s from within the same range as sub interfaces: eth0:0 eth0:1 eth0:2 so on and so forth.

 

Subnetting is not ideal in this situation because it’s a huge waste of IP space.


In oVirt 4.0, you can choose a vnic libvirt filter from a list (at the vnic profile settings).
You can check the clean-traffic filter which uses multiple other more specific filters.
Ref: https://libvirt.org/formatnwfilter.html

Thanks,
Edy.

 


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