[c-nsp] unknown interface for ipv6 route in 4.2.3

[A.L.M.Buxey at lboro.ac.uk]

Hi,

> This... is amazing.  And then people complain that a /64 is too big for
> a single LAN.
> 
> I'd expect more bugs and unexpected behaviour - implementations get tested
> with "LAN = /64", and sometimes with "/112" or "/124", but I'd expect
> most interesting results for connected networks with shorter masks.

i've seen some /48's - but /56 is more common in terms of larger-than-i-expect-to-see
networks 

alan