Ha yes, I completely forget IPv6 case. Sorry and forget that thread. Édouard.
On Thu, Feb 20, 2014 at 3:34 PM, Veiga, Anthony < anthony_ve...@cable.comcast.com> wrote: > This would break IPv6. The gateway address, according to RFC 4861[1] > Section 4.2 regarding Router Advertisements: "Source Address MUST be the > link-local address assigned to the interface from which this message is > sent". This means that if you configure a subnet with a Globally Unique > Address scope, the gateway by definition cannot be in the configured > subnet. Please don't force this option, as it will break work going on in > the Neutron IPv6 sub-team. > -Anthony > > [1] http://tools.ietf.org/html/rfc4861 > > Hi, > > Neutron permits to set a gateway IP outside of the subnet cidr by > default. And, thanks to the garyk's patch [1], it's possible to change this > default behavior with config flag 'force_gateway_on_subnet'. > > This flag was added to keep the backward compatibility for people who > need to set the gateway outside of the subnet. > > I think this behavior does not reflect the classic usage of subnets. So > I propose to update the default value of the flag 'force_gateway_on_subnet' > to True. > > Any thought? > > [1] https://review.openstack.org/#/c/19048/ > > Regards, > Édouard. > > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > >
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