[Dshield] another concern??

Johannes Ullrich jullrich at sans.org
Wed Jun 26 02:38:15 GMT 2002

well, and this is another message that Zonealarm probably shouldn't care about.
If you try to access a machine that is down, the last router ahead of it will
send this ICMP packet to tell you that the machine is down.

Nothing bad about this. Actually, a good thing (unless it is spoofed, in which
case there is not much you can do about it).

On Tue, 25 Jun 2002 20:38:19 -0400
"Mercy" <Mercymail at mindspring.com> wrote:

> Sheesh.. here's another one.  What the heck is all of this?
> The firewall has blocked Internet access to your computer (ICMP Unreachable) from
> Occurred: 6 times between 6/25/02 8:15:54 PM and 6/25/02 8:16:10 PM
> Mercy

jullrich at sans.org             Collaborative Intrusion Detection
                                    join http://www.dshield.org
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