Subject: Re: patch rfc: source-address selection policy
To: David Young <dyoung@pobox.com>
From: Pavel Cahyna <cahyna@pc313.imc.cas.cz>
List: tech-net
Date: 09/21/2005 21:06:50
On Tue, 20 Sep 2005 18:43:56 -0500, David Young wrote:
> and destination have in common. 'same-category' assigns a score of 1
> if the source and destination belong to the same "category" of
> address, one of "link-local" (224/8, 169.254/16), RFC1918 (10/8,
> 172.16/12, 192.168/16) or "global" (all others); otherwise,
> 'same-category' assigns 0. 'preference' assigns a score equal to a
> source's preference
I don't think that the "same-category" policy is sensible in this form.
Just as 10/8 addresses and global addresses are in different categories,
you can also treat subsets of the RFC1918 space as different categories.
Imagine, for example, a large intranet with 10/8 addresses having small
192.168/16 networks connected to it, whose addresses are not reachable
from the intranet.
Bye Pavel