You can use IPSec to block those IP's And you should read ISA list posting Alex Randjelovic IT Manager MagiTech Inc. -----Original Message----- From: Weiss, Robert [mailto:WeissR@xxxxxxxxxx] Sent: Monday, October 29, 2001 4:45 PM To: [ISAserver.org Discussion List] Subject: [isalist] All Port Scan on ISA Server http://www.ISAserver.org This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible.