[20609] in North American Network Operators' Group

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

daemon@ATHENA.MIT.EDU (Patrick Greenwell)
Sun Oct 18 11:19:10 1998

Date: Sun, 18 Oct 1998 07:36:58 -0700 (PDT)
From: Patrick Greenwell <patrick@namesecure.com>
To: Michael Shields <shields@crosslink.net>
cc: I Am Not An Isp <patrick@ianai.net>, Marc Slemko <marcs@znep.com>,
        nanog@merit.edu
In-Reply-To: <g64st3ar8d.fsf@aluminum.crosslink.net>

On 17 Oct 1998, Michael Shields wrote:

> In article <4.0.1.19981016224901.00de6240@pariah.cncx.com>,
> I Am Not An Isp <patrick@ianai.net> wrote:
> > FACT: RFC1918 space does not break PMTU discovery.  Deal with it.
> 
> If you use RFC 1918 space on the Internet, PMTU very well may not work
> for you.  You can place fault on whatever standard you like but that
> doesn't change the *operational* issue.

1) There is nothing inherient in the use of RFC 1918 space that will break
   PMTU.

2) In the real world, many providers filter RFC 1918 space, which has 
   a good chance of breaking PMTU.

There, everyone is right. Can we all put our genitalia away and move on?

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