[Openstack-operators] [openstack-operators]disable snat for router gateway

Aaron Segura aaron.segura at gmail.com
Sat Jan 16 15:29:02 UTC 2016

That is correct.  You should be able to disable snat, then route the tenant
network to the outside of the neutron router and communicate with your
instances using their assigned fixed IP.

If your outbound packets aren't leaving your router, you have another
problem. Start checking iptables rules and make sure all of your plumbing
is right.

On Fri, Jan 15, 2016 at 5:55 PM Akshay Kumar Sanghai <
akshaykumarsanghai at gmail.com> wrote:

> Hi,
> In the cli of neutron router-gateway-set, thers is an option of disable
> snat.
> http://docs.openstack.org/cli-reference/neutron.html#neutron-router-gateway-set
> Does that mean i can create a tenant network and the packet will go out
> with the same fixed ip of the vm? Assume the tenant network created is
> routable or identifiable in the physical network.
> I tried to disable snat for the router gateway, but the packet wasn't
> going out from the external interface. Do i need to edit some iptable rules
> or the disable snat option doesn't work?
> Thanks,
> Akshay
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> OpenStack-operators at lists.openstack.org
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