Hi
To stop the problem, you can deny the icmp echo request on your firewall. Its not a good thing to lets user make icmp echo reply (ping) outdoor of your network. Creat a rule on your firewall to deny it, you can add some exception on this rule to lets administrator to ping outdoor.
Sorry i can give you some advise with ethereal.
You can also check for a Snort (Intrusion Detection System)
Francis Provencher
Ministère de la Sécurité publique
Réalisations et Systèmes réseaux
Tél: (418) 646-3258
Courriel: Francis.provencher@xxxxxxxxxxxxxx
CEH - Certified Ethical Hackers
SSCP - System Security Certified Practionner
Sec+ - Security +
>>> jason.hernandez@xxxxxxxxxxxxx 02/28/06 2:36 PM >>>
Hello all,
I am very new to protocol analyzing and packet sniffing. I usually just
support pc, but an now supporting our network. I've been contacted my
company's ISP and they say some machine behind my router is scanning their
network. I have made sure all my PC's are patched, and have up to day anti
virus software ( McAfee) as well as anti spyware software (Windows
Defender), but I am still having this issue.
How can I use this software to find the culprit? What am I suppose to look
for? Sorry for being such a newbie...
Thanks in advance!
Jason
