* Mikael Abrahamsson:
On Sun, 17 Jul 2011, Florian Weimer wrote:
In practice, the IPv4 vs IPv6 difference is that some vendors provide DHCP snooping, private VLANs and unicast flood protection in IPv4 land, which seems to provide a scalable way to build Ethernet networks with address validation---but there is nothing comparable for IPv6 right now, from any vendor.
That is not true. Check out work and reports from the IETF SAVI WG. There are actually quite a few implementations out there, being used in production.
Others use tunnels, PPPoE or lots of scripting, so certainly something can be done about it. To my knowledge, SAVI SEND is still at a similar stage. Pointers to vendor documentation would be appreciated if this is not the case. And SAVI SEND is not the full story---it's still missing unicast flood protection.