Wouldn't worry about it too much. If the logs say its been blocked, then it's the firewall telling you its doing its job. Theres no point scanning your ext ip from the inside because its on the "inside". If you really want to, do it from outside your lan. Go to grc.com LOL :) Greg Mulholland http://www.isaserver.org http://www.isaserver.mine.nu http://groups.google.com -----Original Message----- From: Brajesh [mailto:smtp@xxxxxxxxxxxxxxxxx] Sent: Monday, 29 December 2003 9:16 PM To: [ISAserver.org Discussion List] Subject: [isalist] port scan http://www.ISAserver.org From the Event viewer and alerts i get a information a port scan attack from an external ip x.x.x.x whcih is the port is the range of 1-2048... For prevention what can I do.. is there any my fault or it is the fault form my ISP's side... how can i prevent the port scans.....can I scan my ports sitting inside my lan... Brajesh Ranjan Panda System Administrator DIVAS OFFSHORE SOFTWARE TECHNOLOGY (P) LTD. N-1/3, DLF-II, GURGAON, HARYANA,INDIA www.divassoftware.com ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: gmulholland@xxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')