Re: (PM) MTU problem and large packets

Jake Messinger (jake@ams.com)
Wed, 3 Mar 1999 17:10:00 -0600 (CST)

I have read your message. Here is my reply.

==>On Wed, 3 Mar 1999, Andy Shipman wrote:
==>
==>> > I'm running a Portmaster IRX Firewall Router, ComOS 3.7.2R. The MTU on
==>> > the ethernet ports is set to 1500. I can ping the router with any packet
==>> > size upto 1472. Why can't I ping it with a packet size of 1500? Any
==>> > ideas out there? I need to resolve this issue or throw out the router as
==>> > it is hampering our internet communications.
==>
==>?? 28 bits of overhead?

Sorry, actually meant bytes. There is always packet overhead on top of ip
info, you have mac info, error checking info, etc...

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