Re: IPv6 on Centos 6

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>
> Love gratuitous changes to long standard toolsets... sigh...
>

It's not a recent change and is far from gratuitous....

http://lists.debian.org/debian-devel/2009/03/msg00780.html

Features such as traffic shaping, policy routing and multiple IPs on
an interface (not virtual interfaces) either are impossible with
net-tools or just don't work very well...


> Also love quality error messages "-101" is *sooo* informative ;-)
>
> But the last line should be the important one and shows the proper
> default route in place, though the even more important one is the route
> to the local net (2607:f678::/64) which also looks right.  It's not a
> routing issue, it's a neighbor discovery issue:
>
> <centos666.peak.org> [55] # ip neigh show
> 2607:f678::1 dev eth0  FAILED
> 207.55.16.1 dev eth0 lladdr 00:26:88:f2:9e:80 REACHABLE
>

Are you allowing ICMPv6? I don't just mean echo and echo-reply (the
pings above) but most of the rest of it too?

IPv6 relies on ICMPv6 heavily for path MTU discovery, neighbour
discovery and a whole lot more...
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