-----Original Message----- From: ryan@u13.net [mailto:ryan@u13.net] Sent: Wednesday, June 08, 2011 9:19 AM To: nanog@nanog.org Subject: Re: Cogent IPv6
On Wed, 8 Jun 2011 09:51:21 -0400, Nick Olsen wrote:
I'm sure someone here is doing IPv6 peering with cogent. We've got a Gig [SNIP] We have separate v4 and v6 sessions with them on the same dual-stack interface (a v4 /29 and v6 /112 on the interface). One session is between our v4 address and theirs, and carries v4 prefixes only. Then another session between v6 addresses that carries v6 prefixes only.
IPv6 newbie alert! I thought the maximum prefix length for IPv6 was 64 bits, so the comment about a v6 /112 for peering vexed me. I have Googled so much that Larry Page called me and asked me to stop. Can someone please point me to a resource that explains how IPv6 subnets larger than 64 bits function and how they would typically be used? thanks, Kelly ******* CONFIDENTIALITY NOTICE ******* This e-mail message and all attachments transmitted with it may contain legally privileged and confidential information intended solely for the use of the addressee. If the reader of this message is not the intended recipient, you are hereby notified that any reading, dissemination, distribution, copying, or other use of this message or its attachments is strictly prohibited. If you have received this message in error, please notify the sender immediately and delete this message from your system. Thank you.