>> There are still some radio links with MTUs of 296 bytes.
>
>Go search with google....people still actively use smaller MTUs.
>
>What do you do? Where do you draw the line in the sand?

Well, the minimum requirement for "you must be able to reassemble this"
is 576; so you use PMTU until you go as low as 576 at which point you
stop using the DF bit.

Casper

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