Firewalls: Re: Killer Pings: sanity check

Firewalls
(November 1996)

Indexed By Thread: [Previous] [Next]

Subject:	Re: Killer Pings: sanity check
From:	Geoff Mulligan <geoff @ mulligan . com>
Date:	Fri, 15 Nov 1996 00:25:26 -0700
To:	uhaas @ tsg-usa . com
Cc:	firewalls @ greatcircle . com
In-reply-to:	Your message of "Fri, 15 Nov 1996 00:14:58 EST." <862563E3:00221F0B . 00 @ smtp . msp . tsg-usa . com>

No this isn't just a problem for local networks.  When the packet is reassembled at the destination end system (intermediate routers do not reassemble fragments), if the reassembly code is faulty, the end system may crash.

Even on a local network the packet will be fragmented (for ethernets 1500 bytes) and reassembled at the end system also possibly causing it to crash.

This is a potential problem for both local and remote systems.

	geoff

References:

Killer Pings: sanity check
From: uhaas @ tsg-usa . com

Indexed By Date	Previous:	Microwave & Satelite From: Kogulapalan <palan @ dataprep . com . my>
Indexed By Date	Next:	Re: InfoSec organization From: Dave Kinchlea <security @ kinch . ark . com>
Indexed By Thread	Previous:	Killer Pings: sanity check From: uhaas @ tsg-usa . com
Indexed By Thread	Next:	Re: Killer Pings: sanity check From: peter . maersk-moller @ jrc . it (Peter Maersk-Moller)