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 > >
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