RE: ICMP (Ping)

["Stuart" <secmail () patchsupplier dyndns org>]

I know that host unreachables come from the hop before the actual
machine, but is it possible to send dest unreachables back when being
pinged?

Stu

-----Original Message-----
From: Jay Woody [mailto:jay_woody () tnb com] 
Sent: 03 September 2003 15:39
To: security-basics () securityfocus com
Subject: Re: ICMP (Ping)


Usually just your typical DoS type attacks where someone pings your box
so often that it can't reply to real requests.

JayW

> > > "Paul Kurczaba" <paul () myipis com> 09/02/03 02:19PM >>>
Are there any security issues for allowing a firewall/router to respond
to Ping from the internet?

-Paul Kurczaba


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Attend Black Hat Briefings & Training Federal, September 29-30 (Training), 
October 1-2 (Briefings) in Tysons Corner, VA; the world's premier 
technical IT security event.  Modeled after the famous Black Hat event in 
Las Vegas! 6 tracks, 12 training sessions, top speakers and sponsors.  
Symantec is the Diamond sponsor.  Early-bird registration ends September 6.Visit us: www.blackhat.com
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