Re: [Openstack] Is it possible to have several floating IPs per VM?
On Fri, Oct 5, 2012 at 4:32 AM, Heinonen, Johanna (NSN - FI/Espoo) johanna.heino...@nsn.com wrote: Hi, I was reading Quantum admin guide (folsom release). There was use case “per-tenant routers with private networks”. In this example all floating IPs were from the same subnet (30.0.0.0/22). I was wondering whether it is possible to have several floating IP subnets and could one VM have floating IP from all of those? (If I have an application that must be reachable from internet via two different interfaces with two different IP addresses, can I do it with Quantum?) Not right now. With Quantum, a router can only uplink to a single external network, and you can have at most one floating IP per external network (otherwise we could not unambiguously apply the policy of SNAT-ing VM initiated connections to the floating IP). In Grizzly, we're planning on making router uplinks more sophisticated, which will include not only the ability to uplink to multiple networks with floating IPs, but also uplink to other types of connectivity, such as an external VPN. I'll update the admin guide to make this clear. Dan Best regards, Johanna ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- ~~~ Dan Wendlandt Nicira, Inc: www.nicira.com twitter: danwendlandt ~~~ ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Is it possible to have several floating IPs per VM?
Hello, I have asked similar question about floating IPs before, but the Quantum docs are now updated with section about provider networks. Can this(multiple IP from same public net) be done if using provider networks? As I understand from the docs then they map directly to VMs without fixed ip + nat in the middle. And the user would see real IP asigned to interface inside VM? On Fri, Oct 5, 2012 at 8:23 PM, Dan Wendlandt d...@nicira.com wrote: On Fri, Oct 5, 2012 at 4:32 AM, Heinonen, Johanna (NSN - FI/Espoo) johanna.heino...@nsn.com wrote: Hi, I was reading Quantum admin guide (folsom release). There was use case “per-tenant routers with private networks”. In this example all floating IPs were from the same subnet (30.0.0.0/22). I was wondering whether it is possible to have several floating IP subnets and could one VM have floating IP from all of those? (If I have an application that must be reachable from internet via two different interfaces with two different IP addresses, can I do it with Quantum?) Not right now. With Quantum, a router can only uplink to a single external network, and you can have at most one floating IP per external network (otherwise we could not unambiguously apply the policy of SNAT-ing VM initiated connections to the floating IP). In Grizzly, we're planning on making router uplinks more sophisticated, which will include not only the ability to uplink to multiple networks with floating IPs, but also uplink to other types of connectivity, such as an external VPN. I'll update the admin guide to make this clear. Dan Best regards, Johanna ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- ~~~ Dan Wendlandt Nicira, Inc: www.nicira.com twitter: danwendlandt ~~~ ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- --janis ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Is it possible to have several floating IPs per VM?
Hi Janis, If your provider network maps directly to a publicly accessible network then you should be able to assign IPs to VMs from a public range without using Floating IPs and NAT. With Quantum, you just specify a physical network (e.g.: eth0) and a segmentation id (e.g.: vlan id 999) for creating this mapping; ensuring it actually results in VM instances directly connected to a public network is beyond the scope of Quantum. Regards, Salvatore On 5 October 2012 22:07, Jānis Ģeņģeris janis.genge...@gmail.com wrote: Hello, I have asked similar question about floating IPs before, but the Quantum docs are now updated with section about provider networks. Can this(multiple IP from same public net) be done if using provider networks? As I understand from the docs then they map directly to VMs without fixed ip + nat in the middle. And the user would see real IP asigned to interface inside VM? On Fri, Oct 5, 2012 at 8:23 PM, Dan Wendlandt d...@nicira.com wrote: On Fri, Oct 5, 2012 at 4:32 AM, Heinonen, Johanna (NSN - FI/Espoo) johanna.heino...@nsn.com wrote: Hi, I was reading Quantum admin guide (folsom release). There was use case “per-tenant routers with private networks”. In this example all floating IPs were from the same subnet (30.0.0.0/22). I was wondering whether it is possible to have several floating IP subnets and could one VM have floating IP from all of those? (If I have an application that must be reachable from internet via two different interfaces with two different IP addresses, can I do it with Quantum?) Not right now. With Quantum, a router can only uplink to a single external network, and you can have at most one floating IP per external network (otherwise we could not unambiguously apply the policy of SNAT-ing VM initiated connections to the floating IP). In Grizzly, we're planning on making router uplinks more sophisticated, which will include not only the ability to uplink to multiple networks with floating IPs, but also uplink to other types of connectivity, such as an external VPN. I'll update the admin guide to make this clear. Dan Best regards, Johanna ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- ~~~ Dan Wendlandt Nicira, Inc: www.nicira.com twitter: danwendlandt ~~~ ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp -- --janis ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
