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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1188427

Title:
  specify IP address when running router-gateway-set

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  Short question:
  is it possible to control the IP address that is given to a router 
  by the quantum router-gateway-set  command ?
  In my setup, I have a physical Provider Network associated to a public (routable) IP address range used at my site (X.Y.Z.0/24).
  I have created an ExternalNet network by the CLI commands:

  quantum net-create ExternalNet --router:external=True
  quantum subnet-create ExternalNet X.Y.Z.0/24 --enable_dhcp=False --gateway_ip=X.Y.Z.254

  When I issue the quantum router-gateway-set command, the public interface
  of the router gets the first address of the X.Y.Z.0/24 range, i.e. X.Y.Z.1,
  which, by pure chance, is not used in my physical network.
  My setup seems to work OK, VMs are able to ping any other host
  in the external network X.Y.Z.0/24, as well as any other Internet host,
  through the physical router X.Y.Z.254.

  I wonder if is possible to assign to the "virtual" router implemented in Quantum a given address in the range of addresses associated to the external subnet, e.g. X.Y.Z.33.
  This might also be useful in the "Per-tenant Routers with Private Networks" use case.
  Many thanks in advance for your replies.
  Roberto

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