[137078] in North American Network Operators' Group
Re: IPv6 addressing for core network
daemon@ATHENA.MIT.EDU (sthaug@nethelp.no)
Wed Feb 9 06:18:10 2011
Date: Wed, 09 Feb 2011 12:17:25 +0100 (CET)
To: mohacsi@niif.hu
From: sthaug@nethelp.no
In-Reply-To: <alpine.BSF.2.00.1102091148120.83337@mignon.ki.iif.hu>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> > Global scope addresses on router-to-router interfaces are necessary
> > today for traceroute to work. Some ISPs are *requiring* working
> > traceroute (without MPLS hiding of intermediate hops) in RFPs to
> > transit providers.
> >
> > If you can get router ICMP handling changed such that the ICMP packet
> > generated by traceroute is sent from the loopback address, we might
> > be able to do without global scope addresses on router-to-router
> > interfaces. But until then...
>
> You can do it on C and J vendor. Without link-local ICMPv6 will use
> loopback0. Example on C:
> ipv6 unnumbered loopback0
I'm afraid I don't consider this an alternative. I *like* global link
addresses for our core routers - and so does our NOC.
Steinar Haug, Nethelp consulting, sthaug@nethelp.no
