[olug] bad practices at home - not relevant!

[Adam Korab]

On Sat, May 26, 2001 at 04:12:31PM -0500, David Walker wrote:
> Wouldn't it be true that if the MTU for the router with the internal IP was
> the same or smaller than that of the routers on either side of it that it
> would not be a factor in Path MTU Discovery?

The crux of the issue here is that to get PMTU discovery to work from one of
these addresses, you have to relax your filters and even if you did so, which
you shouldn't, the RFC1918 source address is going to confuse things coming
back.  Also, the PMTU bits are still _traffic being generated from an RFC1918 
address_ which should never happen on the public Internet.  There are a lot of 
IP engineering techniques that are deployed that "just work."  That doesn't 
necessarily make them the right thing to do.

--Adam
-- 
"A workstation without a network is like a geek in a field all by himself.
It looks intriguing, unusual and different but no one will come within 20
feet of it." -- Sun help document

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