Re: Allow ICMP on external interface
- From: "William Robertson" <robertson.william@xxxxxxxxxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Thu, 2 Oct 2003 08:02:15 +0200
Hmmm, funky site Shawn!
-----Original Message-----
From: Quillman Shawn (RBNA/CIT1.1) * [mailto:Shawn.Quillman@xxxxxxxxxxxx]
Sent: 01 October 2003 13:46 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Allow ICMP on external interface
http://www.ISAserver.org
A partial solution is to just use a ping gateway on some web site. For
example, there are a ton of tools you can use at http://www.dnsstuff.com/.
Ping is among them. Granted, this won't test the connectivity to and from
your own network but it will at least tell you if a remote host is alive or
not.
-Shawn
-----
Shawn R. Quillman
Robert Bosch Corporation RBNA/CIT1.1
38000 Hills Tech Drive
Farmington Hills, MI 48331
(248) 553-1164 (P) (248) 848-2855 (F)
shawn.quillman@xxxxxxxxxxxx
-----Original Message-----
From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx]
Sent: Wednesday, October 01, 2003 2:32 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Allow ICMP on external interface
http://www.ISAserver.org
> > Why do folks always want to allow the simplest of DoS attacks?
> > <sigh>
>
> I'm sorry to hear that your opinion is to block ICMP. I know there are
other
> people that have the same opninion but I also know a lot of people who
don't
> agree with you. PING is a very handy tool.
Yes, PING is a very handy tool. It is also widely used for DoS attacks.
There is absolutely no reason in the world to allow ping into every
interface on the internal network. One interface for test, yes. There is
absolutely no reason to allow every interface on the internal network to
ping out. One interface for testing, yes.
John Tolmachoff MCSE CSSA
Engineer/Consultant
eServices For You
www.eservicesforyou.com
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