bugtraq - Re: (ICMP attacks against TCP) (was Re: HPSBUX01137 SSRT5954

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <200507211717.j6LHHFDk001899@vaticaan.Holland.Sun.COM>
Date: Thu, 21 Jul 2005 19:17:15 +0200
From: Casper.Dik@....COM
To: Darren Reed <avalon@...igula.anu.edu.au>
Cc: Security Alert <secure@...hs.cup.hp.com>, bugtraq@...urityfocus.com,
	full-disclosure@...ts.grok.org.uk
Subject: Re: (ICMP attacks against TCP) (was Re:
	HPSBUX01137 SSRT5954

>> 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
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/