At 06:24 p.m. 8/09/2004, you wrote:
>Most Wired Country ISPs use PPPoE for authentication. I'm pretty sure the max MTU
>for PPPoE is lower then 1500 due to the PPP overhead or some such. A quick search
>reveals it's probably 1480 altho a more thorough search is probably in order.
>
>Hope this helps...

Should add there are ways to try to test the real max MTU. Easiest is probably
to ping and change the packet size and also tell it not to fragment. You have
to subtract a certain amount from the packet (28 I think but check) due to
overhead... I think Microsoft has instructions for Windows but it's quite easy
once you have the general idea.

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