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://git.distorted.org.uk/~mdw/ssh-ca/commitdiff_plain/6ff3049c2bc1e702c554617560b25d50d76e2444?hp=ad80122522ccfc888cd4655ca5f9e81c6d8593af

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.
---

diff --git a/etc/hosts b/etc/hosts
index 1ced894..e62aa6b 100644
--- a/etc/hosts
+++ b/etc/hosts
@@ -20,7 +20,7 @@ artist \
 	.unsafe 172.29.199.4 2001:470:9740:1::4 \
 	.untrusted 172.29.198.2 2001:470:9740:8001::2
 orange \
-	172.29.199.131 2001:ba8:1d9:6000::3
+	172.29.199.131 2001:ba8:1d9:6000::3:0
 fender \
 	.jump 212.13.198.69 2001:ba8:0:1d9::2 \
 	.colo 172.29.199.177 2001:ba8:1d9:2::1
@@ -54,7 +54,7 @@ invader
 
 ## Mobile devices.
 crybaby \
-	172.29.199.129 2001:ba8:1d9:6000::1
+	172.29.199.129 2001:ba8:1d9:6000::1:0
 terror \
 	172.29.199.130