Re: (ICMP attacks against TCP) (was Re: HPSBUX01137 SSRT5954
To: Darren Reed <firstname.lastname@example.org> Date: Thu, 21 Jul 2005 19:17:15 +0200
>> 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.