Hi, Per my understanding, it is not required to have ipv6 address in loopback intf on all P routers inorder to have 6PE work. If I remember it correctly, P router will use ::FFFF::<ipv4-addr> while originating ICMPv6 error message.
-Nagendra -----Original Message----- From: Daniel Roesen [mailto:d...@cluenet.de] Sent: Friday, June 15, 2012 4:02 PM To: nanog@nanog.org Subject: Re: IPv6 Lo. for 6PE/6VPE On Fri, Jun 15, 2012 at 11:56:05AM +0200, mohamed Osama Saad Abo sree wrote: > I was just wondering , while I'm planning my network to support > 6PE/6VPE why should i assign an IPv6 for Loopbacks? > > Maybe it's needed for Point-Point links or external interfaces between > my peers, but anyone here know why i should assign IPv6 for all my > Routers inside my ISP if we will run PE/6VPE not dual stack. Otherwise the intermediate P devices do not have an address to source ICMPv6 "hop count exceeded" error replies => traceroute doesn't work properly. Best regards, Daniel -- CLUE-RIPE -- Jabber: d...@cluenet.de -- dr@IRCnet -- PGP: 0xA85C8AA0
