[15654] in North American Network Operators' Group
Re: Someones being naughty again...
daemon@ATHENA.MIT.EDU (Marc Slemko)
Sat Mar 14 01:42:10 1998
Date: Fri, 13 Mar 1998 23:36:13 -0700 (MST)
From: Marc Slemko <marcs@znep.com>
To: Pat Darisme <pat@noc.home.net>
cc: Marc Hurst <mhurst@fastlane.ca>, nanog@merit.edu
In-Reply-To: <980313172938.ZM27544@noc6.noc.home.net>
On Fri, 13 Mar 1998, Pat Darisme wrote:
>
> I don't see a problem here ?
Not unless you have a larger MTU on the "outside" interface than
the "inside" interface, then you lose bigtime.
I would check to see if this is the case in this situation, but
those addresses don't come into my network so I can't.
Offhand, I can't think of any other problems but I really discourage
people from using internal address space for this purpose because it:
- breaks stuff like path MTU discovery, etc. when filtered.
- prevents easy identification of links, whose they are, etc.
because you can't have reverse DNS and the addresses don't
belong to you.
- causes confusion when multiple networks that are using such
addresses are merged or interconnected in the wrong (right)
way.
I like the idea behind why you would do it, but... can't justify it.
