From: Mark Wooding <mdw@distorted.org.uk>
Date: Sat, 13 Jul 2013 15:34:40 +0000 (+0100)
Subject: etc/hosts: Replacing IPv6 host routes with /112 networks.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/ssh-ca/commitdiff_plain/6ff3049c2bc1e702c554617560b25d50d76e2444?ds=inline;hp=6ff3049c2bc1e702c554617560b25d50d76e2444

etc/hosts: Replacing IPv6 host routes with /112 networks.

Linux has a bug: it doesn't make route cache entries for remote hosts if
there's already a host route, and it only attaches path-MTU information
to cache entries.  The result is that it doesn't handle ICMPv6 `packet
too big' messages properly for destinations with host routes.

I'm bodging this by replacing all of the host routes with tiny /112
networks.  It's awful, but it seems to work.  The convention is that the
`host part' of the net is always zero.
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