Subject: Re: Peculiar ICMP6 redirect rejection
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: Jun-ichiro itojun Hagino <>
List: tech-net
Date: 08/14/2002 14:10:30
>> it is not legal.
>Not legal?  What on earth??  (They certainly _work_; I've used global
>addresses as the target for default routes often enough.)  In
>particular, how on earth am I supposed to determine the link-local
>address corresponding to the global address of the router I want to
>point the route to?  I'm not about to use something that will change if
>I happen to switch hardware (eg, something that depends on the MAC
>address); am I supposed to configure every interface with a site-local
>address in parallel with its global address, for use in routes?  That
>seems pointless and stupid, especially as it's unnecessary in practice.

	certain portion of ICMPv6 logic depends on it (= gateway is linklocal).