Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-17 Thread Carl Baldwin
Jacob, I don't have your original email from which to reply. So, hopefully this finds you just as well. The bad news is that I don't have an immediate answer to address this. However, I thought it was worth mentioning where the future may lead. I have been thinking about the scenario that you

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-17 Thread Mike Spreitzer
From: Jacob Godin jacobgo...@gmail.com To: Mike Spreitzer/Watson/IBM@IBMUS Cc: Daniel Comnea comnea.d...@gmail.com, OpenStack Operators openstack-operators@lists.openstack.org Date: 04/15/2015 08:37 AM Subject: Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways Ah

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-17 Thread Mike Spreitzer
From: Mike Spreitzer/Watson/IBM@IBMUS From: Jacob Godin jacobgo...@gmail.com Ah, gotcha. So you're not using overlapping subnets then. Unfortunately that hack wouldn't work in our environment, but definitely something that others might consider using. Right, the solution I

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-15 Thread Daniel Comnea
: Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways Sent by: daniel.com...@gmail.com Mike, pls share the solution, some are interested even if is a hack as long as it gets the job done. On Tue, Apr 14, 2015 at 10:24 PM, Jacob Godin jacobgo...@gmail.com wrote: Hey

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-15 Thread Jacob Godin
To: Jacob Godin jacobgo...@gmail.com Cc: Mike Spreitzer/Watson/IBM@IBMUS, OpenStack Operators openstack- operat...@lists.openstack.org Date: 04/15/2015 02:34 AM Subject: Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways Sent by: daniel.com...@gmail.com Mike, pls

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-15 Thread Mike Spreitzer
From: Daniel Comnea comnea.d...@gmail.com To: Jacob Godin jacobgo...@gmail.com Cc: Mike Spreitzer/Watson/IBM@IBMUS, OpenStack Operators openstack- operat...@lists.openstack.org Date: 04/15/2015 02:34 AM Subject: Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways Sent

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-15 Thread Daniel Comnea
Mike, pls share the solution, some are interested even if is a hack as long as it gets the job done. On Tue, Apr 14, 2015 at 10:24 PM, Jacob Godin jacobgo...@gmail.com wrote: Hey Mike, Would you send along your solution off-list? I'm curious, and I won't judge :) On Tue, Apr 14, 2015 at

[Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-14 Thread Jacob Godin
Hi folks, Looking for a bit of advice on how to accomplish something with Neutron. Our setup uses OVS+GRE with isolated tenant networks. Currently, we have one large network servicing our Floating IPs as well as our external router interfaces. What we're looking to do is actually have two

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-14 Thread Kevin Benton
Probably not in the way you want. You can have two subnets on the external network. Then you would set the allocation pool to be nothing for the subnet that you want the router interfaces to be attached to to make sure floating IPs aren't allocated from it. Then whenever you attach a router

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-14 Thread Mike Spreitzer
Jacob Godin jacobgo...@gmail.com wrote on 04/14/2015 05:12:48 PM: Absolutely. We're trying to reduce our public IPv4 usage, so having one per tenant network (not even including floating IPs) is a drain. I am having exactly the same issue. I am currently solving it with a different hack that

[Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-14 Thread Assaf Muller
- Original Message - Hi folks, Looking for a bit of advice on how to accomplish something with Neutron. Our setup uses OVS+GRE with isolated tenant networks. Currently, we have one large network servicing our Floating IPs as well as our external router interfaces. What we're

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-14 Thread Jacob Godin
Absolutely. We're trying to reduce our public IPv4 usage, so having one per tenant network (not even including floating IPs) is a drain. Instead of having: instance - (gateway IP) virtual router NAT (public IP) - (public gateway) router We want to have: instance - (gateway IP) virtual router NAT

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-14 Thread Jacob Godin
Thanks Kevin. That might work in some instances, however our tenants have the ability to create their own routers and allocate their gateway. I suppose we could hack some code in to restrict what networks are usable for routers vs floating IPs. On Tue, Apr 14, 2015 at 6:08 PM, Kevin Benton

Re: [Openstack-operators] [Neutron] Floating IPs / Router Gateways

2015-04-14 Thread Jacob Godin
Hey Mike, Would you send along your solution off-list? I'm curious, and I won't judge :) On Tue, Apr 14, 2015 at 6:22 PM, Mike Spreitzer mspre...@us.ibm.com wrote: Jacob Godin jacobgo...@gmail.com wrote on 04/14/2015 05:12:48 PM: Absolutely. We're trying to reduce our public IPv4 usage, so