Re: [Xen-devel] [PATCH 5/5] hotplug/linux: Add IPv6 support to vif-route

[Sylvain Munaut <s.munaut@xxxxxxxxxxxxxxxxxxxx>]

Hi,

> I'm afraid I don't really understand IPv6 neighbour discovery
> etc. well enough to review this.
>
> Can you point me to an explanation ?  (I understand IPv4 quite well.)

It's pretty much that same as IPv4 except instead of being a different
protocol (ARP), it's done over ICMPv6 with special multicast
addresses.

https://en.wikipedia.org/wiki/Neighbor_Discovery_Protocol
http://www.cisco.com/c/dam/en/us/td/i/000001-100000/50001-55000/52501-53000/52673.ps/_jcr_content/renditions/52673.jpg

The kernel has a 'proxy_ndp' mode that's similar to 'proxy_arp' except
you need to manually specify which address you want it to proxy and on
which interface.


Cheers,

   Sylvain Munaut

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