Re: icmp echo-requests?

["Eric Schroeder" <ericschroeder () satel com>]

In my experience, Microsoft operating systems send a lot of pings to the 
Master Browser.  Not sure why.

Eric Schroeder





JR <jr () secureity de>
Sent by: <rjuerrens () web de>
11/20/2002 01:21 AM

 
        To:     security-basics () securityfocus com
        cc: 
        Subject:        icmp echo-requests?


Hi everyone,

in my firewall logs I see a lot of echo-requests within the internal 
network. Of course, the simplest answer to these events is that pings are 
causing these events. But on these machines definitely no pings are 
startet to that times. Is it possible that other kind of programs  are 
using echo-requests? What kind of programs are using echo-requests and 
why? Checking wether the other host ist up? What if the firewall is 
filtering echo-requests? The program would think that the host is down...

Greetings!
JR


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