Bugtraq: Re: (ICMP attacks against TCP) (was Re: HPSBUX01137 SSRT5954

[Casper.Dik () Sun COM]

> > 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