On Wed, Jul 27, 2016 at 11:04:55PM -0700, Ben Pfaff wrote: > The commit message here is so detailed that I can't figure out what the > actual goal is. What is SLAAC and how does it benefit the user or > administrator? I apologies for necro-posting, but Router Advertisement in not only about address autoconfiguration. This is an advertisement of a router (Link-Local router address) in the first place. In terms of OVN - Logical_Router_Port. Besides router, RA message also contains information about IPv6 Prefixes (subnets), available on this link.
Since DHCPv6 does not provide prefix length to client (assigned addresses will have /128 prefix), communication between VMs in one Logical_Switch will be done via configured "router" (options:server_id). If OS receives RA message, it will set routing to announced prefix via network interface: $ ip -6 ro 2001:470:XXX:XXX::/64 dev eth0 proto kernel metric 256 expires 7035sec mtu 1280 advmss 1220 hoplimit 0 fd4b:XXX:XXX::/64 dev eth0 proto kernel metric 256 expires 7035sec mtu 1280 advmss 1220 hoplimit 0 fe80::/64 dev eth0 proto kernel metric 256 mtu 1280 advmss 1220 hoplimit 0 default via fe80::1 dev eth0 proto kernel metric 1024 expires 1653sec mtu 1280 advmss 1220 hoplimit 0 So, even with DHCPv6, it would be great if OVN provide RA support. -- Regards, -- Sir Raorn. --- https://plus.google.com/+AlexeyFroloff _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
