[ovirt-users] IP Address Stealing

[Edward Haas]

On Fri, Aug 12, 2016 at 8:17 PM, Bill Bill <jax2568 at outlook.com> wrote:

> 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.
>

That could have been a nice option indeed.
Could you please open an RFE on bugzilla so we can consider and manage this?

Thanks,
Edy.


>
>
>
>
>
>
> *From: *Edward Haas <ehaas at redhat.com>
> *Sent: *Thursday, August 4, 2016 3:47 AM
> *To: *Subhendu Ghosh <sghosh at redhat.com>
> *Cc: *Bill Bill <jax2568 at outlook.com>; users <users at ovirt.org>
> *Subject: *Re: [ovirt-users] IP Address Stealing
>
>
>
>
> On Thu, Aug 4, 2016 at 6:27 AM, Subhendu Ghosh <sghosh at 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 at outlook.com>
>> *Sent:* Aug 3, 2016 22:40
>> *To:* users at 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 at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20160814/43d93f8f/attachment-0001.html>