nanog mailing list archives
Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses)
From: Adrian Chadd <adrian () creative net au>
Date: Fri, 22 Oct 2010 11:38:42 +0800
On Thu, Oct 21, 2010, Leo Bicknell wrote:
If you could number your internal network out of some IPv6 space (possibly 1918 style, possibly not), probably a /48, and then get from your two (or more) upstreams /48's of PA space you could do 1:1 NAT. No PAT, just pure address translation, 1:1. You can "renumber" by configuring a new outside translation. The NAT box can do the load distribution functions discussed here, some users out one provider, others out the second provider. There is no port complication, so incoming connections are much simpler.
You assume the protocol(s) don't include IP addresses inside the payload. You also assume the protocol(s) don't do things like checksum application payloads, which include IP addresses. Both of which I've seen, today. Some of which I occasionally see inside, hm, "over-enthusiastic" HTTP procotol/application designers. NAT's going to be needed, but it's going to be more stateful inspection-y than most of the vocal nanog+ipv6 people desire. :) Adrian
Current thread:
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 — Unique local addresses), (continued)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 — Unique local addresses) Owen DeLong (Oct 21)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 — Unique local addresses) Mark Andrews (Oct 21)
- RE: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 — Unique local addresses) George Bonser (Oct 21)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 — Unique local addresses) Jack Bates (Oct 21)
- RE: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 — Unique local addresses) George Bonser (Oct 21)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 — Unique local addresses) Jeroen Massar (Oct 21)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 — Unique local addresses) Owen DeLong (Oct 21)
- RE: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) George Bonser (Oct 21)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Leo Bicknell (Oct 21)
- RE: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 -Unique local addresses) George Bonser (Oct 21)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Adrian Chadd (Oct 21)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Valdis . Kletnieks (Oct 31)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Owen DeLong (Oct 31)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) Christopher Morrow (Oct 31)
- RE: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 -Unique local addresses) George Bonser (Oct 31)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 -Unique local addresses) Christopher Morrow (Oct 31)
- RE: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 -Unique local addresses) George Bonser (Oct 31)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 -Unique local addresses) Mark Andrews (Oct 31)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 -Unique local addresses) Owen DeLong (Oct 31)
- Re: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 - Unique local addresses) David Conrad (Oct 31)
- RE: Failover IPv6 with multiple PA prefixes (Was: IPv6 fc00::/7 -Unique local addresses) George Bonser (Oct 31)