nanog mailing list archives
NAT Multihoming (was:Re: NANOG 40 agenda posted)
From: "Lamar Owen" <lowen () pari edu>
Date: Sat, 2 Jun 2007 10:31:05 -0400
On Friday 01 June 2007, Vince Fuller wrote:
If you think about it, the NAT approach actually offers the possibility of improved routing scalability: site multihomed with NATs connected to each of its providers could use topologically-significant (read "PA") global addresses on the NATs while using the same private address space on their network.
Cisco has a whitepaper entitled "Enabling Enterprise Multihoming with Cisco IOS NAT" that addresses this. See http://www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a0080091c8a.shtml as well as RFC2260. There are indeed a few thorny issues with this approach; the largest issue is that all connectivity becomes DNS-dependent and raw IP addresses (from both the inside and outside) become virtually useless. Running servers behind this scheme, while doable, is difficult. -- Lamar Owen Chief Information Officer Pisgah Astronomical Research Institute 1 PARI Drive Rosman, NC 28772 (828)862-5554 www.pari.edu
Current thread:
- Re: NANOG 40 agenda posted, (continued)
- Re: NANOG 40 agenda posted Kradorex Xeron (Jun 02)
- Re: NANOG 40 agenda posted Randy Bush (Jun 02)
- Re: NANOG 40 agenda posted Joel Jaeggli (Jun 01)
- Re: NANOG 40 agenda posted Paul Vixie (Jun 02)
- Re: NANOG 40 agenda posted Petri Helenius (Jun 02)
- Re: NANOG 40 agenda posted Paul Vixie (Jun 02)
- Re: NANOG 40 agenda posted Stephen Sprunk (Jun 01)
- Re: NANOG 40 agenda posted Donald Stahl (Jun 02)
- Re: NANOG 40 agenda posted Iljitsch van Beijnum (Jun 04)
- Re: NANOG 40 agenda posted Nathan Ward (Jun 02)
- Re: NAT Multihoming (was:Re: NANOG 40 agenda posted) Paul Vixie (Jun 02)
- Re: NAT Multihoming (was:Re: NANOG 40 agenda posted) Donald Stahl (Jun 02)
- Re: NAT Multihoming Simon Leinen (Jun 03)
- Re: NAT Multihoming Chris Owen (Jun 03)
- Re: NAT Multihoming Randy Bush (Jun 03)
- Re: NAT Multihoming Stephen Satchell (Jun 03)
- Re: NAT Multihoming Stephane Bortzmeyer (Jun 04)
- Re: NAT Multihoming Donald Stahl (Jun 04)
- Re: NAT Multihoming Iljitsch van Beijnum (Jun 04)