[97138] in North American Network Operators' Group
Re: NAT Multihoming (was:Re: NANOG 40 agenda posted)
daemon@ATHENA.MIT.EDU (Donald Stahl)
Sat Jun 2 17:00:22 2007
Date: Sat, 2 Jun 2007 16:59:29 -0400 (EDT)
From: Donald Stahl <don@calis.blacksun.org>
To: Lamar Owen <lowen@pari.edu>
Cc: nanog@nanog.org
In-Reply-To: <200706021031.05630.lowen@pari.edu>
Errors-To: owner-nanog@merit.edu
> 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.
When an ISP's caching name servers ignore your 3600 TTL and substitute an
86400 TTL you end up disconnected for ~12 hours instead of ~30 minutes-
That's unacceptable for a almost any company willing to go through the
trouble of getting an ASN.
-Don
