02-13-2014 01:37 PM - edited 03-01-2019 05:43 PM
With Chip Nielsen
Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about deploying IPv6 in an enterprise environment with expert Chip Nielsen.
IPv6 is the latest revision of the Internet Protocol and is intended as a replacement for IPv4. As public IPv4 address space continues to be exhausted, IPv6 is becoming more important to the enterprise. In this session, we will discuss the current state of IPv6 deployment and how to deploy IPv6 in your network.
Chip Nielsen (CCIE no. 12369) is a network consulting engineer with Advanced Services Enterprise West. During his eight-year tenure at Cisco, Chip has worked on several global enterprise design and implementation projects. These projects ranged from IPv6 migration planning to provider-managed MPLS WAN design. As an IPv6 Forum Fellow, he has also participated extensively in the IPv6 Forum education programs. In addition, Chip is a proctor for the IPv6 Hands-On Lab at Cisco Live. Prior to Cisco, Chip held various enterprise/commercial consulting and engineering roles in his 14-year networking career.
Remember to use the rating system to let Chip know if you have received an adequate response.
Chip might not be able to answer each question due to the volume expected during this event. Remember that you can continue the conversation in Network Infrastructure community, sub-community, IPv6 Integration and Transition discussion forum shortly after the event. This event lasts through February 28, 2014. Visit this forum often to view responses to your questions and the questions of other community members.
02-25-2014 03:49 PM
Hi Calvin,
That statement is still true today for organizations that cannot get PI space. I'm not aware of any technology in development to specifically address the renumbering problem. Although, NPTv6 may eventually be used to help ease this type of transition.
Various working groups in IETF have covered the renumbering problem. The following RFCs may be of interest to you:
RFC 4192 - Procedures for Renumbering an IPv6 Network without a Flag Day
http://tools.ietf.org/html/rfc4192
RFC 5887 - Renumbering Still Needs Work
http://tools.ietf.org/html/rfc5887
And the work done in the 6renum working group:
http://datatracker.ietf.org/wg/6renum/
RFC4192 covers using multiple IPv6 addresses on an interface to migrate prefixes.
Thanks,
Chip
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