Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Security-Basics
[Top] [All Lists]

Re: Removing ping/icmp from a network

Subject: Re: Removing ping/icmp from a network
Date: Wed, 26 Mar 2008 13:51:39 -0400
True.. I could see that if you have devices of varying MTU's... Good point.

-J

On Wed, Mar 26, 2008 at 1:47 PM, Jon R. Kibler <Jon.Kibler@aset.com> wrote:
Edward Ling wrote:
 > "I don't see any ICMP messages that are a MUST for network operation."
 >

 "Packet too big" (ICMP 3/4) IS required for PMTUD. You will drop packets 
without it.



 Jon K.
 --
 Jon R. Kibler
 Chief Technical Officer
 Advanced Systems Engineering Technology, Inc.
 Charleston, SC  USA
 (843) 849-8214





 ==================================================
 Filtered by: TRUSTEM.COM's Email Filtering Service
 http://www.trustem.com/
 No Spam. No Viruses. Just Good Clean Email.



<Prev in Thread] Current Thread [Next in Thread>