[136388] in North American Network Operators' Group
Re: quietly....
daemon@ATHENA.MIT.EDU (Owen DeLong)
Wed Feb 2 16:54:26 2011
From: Owen DeLong <owen@delong.com>
In-Reply-To: <9F2mjoD95cSNFAI6@perry.co.uk>
Date: Wed, 2 Feb 2011 13:49:41 -0800
To: Roland Perry <lists@internetpolicyagency.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Feb 2, 2011, at 1:37 PM, Roland Perry wrote:
> In article <EFC767DA-2CBB-4094-B8D2-553E9EAA2990@sackheads.org>, John =
Payne <john@sackheads.org> writes
>=20
>> NAT provides a solution to, lets call it, enterprise multihoming.
>> Remote office with a local Internet connection, but failover through
>> the corporate network.
>=20
> And for home (/homeworker) networks ... eg I have a NAT box with a =
default connection to my ADSL provider and an automatic failover to 3G =
(completely separate supplier).
>=20
> Almost everything inside my network doesn't notice when it switches =
over.
>=20
> Now, if only I could get it to automatically revert to ADSL when it =
reappears - I wouldn't have to worry so much about the 3G bill.
>=20
> --=20
> Roland Perry
> Nottingham, UK
In this case in IPv6, the better choice is to have addresses on each =
host from both providers. When a provider goes away, the router should =
invalidate the prefix in the RAs. If the hosts have proper address =
selection policies, they will actually go back to the ADSL prefix as =
soon as it reappears.
Owen
