Re: [ovirt-users] IP Address Stealing

Cool. It looks like that works. Perhaps it would be good for oVirt to have a few text fields in the nic properties to enter IP addresses into which can match the rules being used. For example, when enabling the clean-traffic filter it appears the VM can only have 1 IP address, even if another IP is added legitimately, it still only works with the original IP address. Something like this: http://i.imgur.com/9BUZRCN.jpg So essentially, traffic would be blocked on that VM for any other IP space other than the IP’s entered into the text fields, which then edit/work with the netfilter rules. The idea would be to click “click to add more” would add another text field.

*From: *Edward Haas <ehaas(a)redhat.com&gt; *Sent: *Thursday, August 4, 2016 3:47 AM *To: *Subhendu Ghosh <sghosh(a)redhat.com&gt; *Cc: *Bill Bill <jax2568(a)outlook.com>; users <users(a)ovirt.org&gt; *Subject: *Re: [ovirt-users] IP Address Stealing On Thu, Aug 4, 2016 at 6:27 AM, Subhendu Ghosh <sghosh(a)redhat.com&gt; 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(a)outlook.com&gt; > *Sent:* Aug 3, 2016 22:40 > *To:* users(a)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. > > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > >