[j-nsp] Link local address errors when committing VRRP for inet6

[Chuck Anderson]

On Thu, Jun 20, 2013 at 05:22:46PM -0700, Morgan McLean wrote:
> I ended up setting virtual-link-local-address fe80::1 and an interface
> using fe80::0/10, which I guess is the link local designed range so I found
> after more googling.

Actually, you should use /64 not /10.  While the whole /10 is reserved
by the RFCs, only /64 is defined for actual link-local usage.  I've
found that some hosts have problems communicating with link-locals in
other parts of fe80::/10 outside fe80::/64.

I usually just define link locals with the subnet-id parts of the
gloabl IPv6 addresses shifted over to the right as the interface-id
part to maintain the fe80::/64 prefix.  For example
2001:db8:f00d:cafe::1/64 would have fe80::db8:f00d:cafe:1/64 as the
corresponding link-local.  Note that the double-colon moves to just
after the fe80.