[20580] in North American Network Operators' Group

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Re: Maybe I'm misreading this but...

daemon@ATHENA.MIT.EDU (Michael Shields)
Fri Oct 16 18:12:32 1998

From: shields@crosslink.net (Michael Shields)
Mail-Copies-To: never
To: I Am Not An Isp <patrick@ianai.net>
Cc: tvo <tvo@EnterZone.Net>, nanog@merit.edu
Date: 16 Oct 1998 21:39:11 +0000
In-Reply-To: I Am Not An Isp's message of "Fri, 16 Oct 1998 12:08:58 -0700"

In article <199810161909.PAA16027@merit.edu>,
I Am Not An Isp <patrick@ianai.net> wrote:
> At 01:12 PM 10/16/98 -0400, tvo wrote:
> >Doesn't this break MTU path discovery though?
> 
> No, it wouldn't.  Those addresses are not routable on the global 'Net,
> however, there is nothing stopping a device with an RFC1918 address from
> sending a packet onto the 'Net.

Except that many people filter out RFC 1918 at ingress, in the same
ACL that blocks spoofing of your own blocks.

(although if you see it in a traceroute you know that's not happening)
-- 
Shields, CrossLink.

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