[Openstack] floating IPs not routed from inside

Vishvananda Ishaya vishvananda at gmail.com
Thu Oct 25 22:16:37 UTC 2012


You might try the following conf:

dmz_cidr=<your_floating_range>

My guess is that traffic to other floating ips is getting snatted to the network host and lost in transit.

Vish

On Oct 25, 2012, at 7:27 AM, Christian Parpart <trapni at gmail.com> wrote:

> Hey all,
> 
> we're having quite a few compute nodes with Essex installed and one central nova-network gateway.
> 
> We now have a few floating IPs set up to route from the world through the gateway to these VMs.
> 
> However, accessing these floating (public) IPs from inside a tenant's VM results into timeouts,
> but accessing the very same IP from a compute node (hypervisor) hosting those VMs actually does work.
> 
> Now I'm a bit confused, it seems like a routing issue or iptables NAT thing and would be really greatful
> if anyone can help me out with a hint. :)
> 
> Is this known to not work or what do you need from me to actually understand my issue a bit more?
> 
> Many thanks in advance,
> Christian Parpart.
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