ISA can't block by MAC addresses. Even if you limit logon for a particular user to a specific machine and reserve IPs in DHCP, it's wasteed effort. Your users are not even the core of the problem; they're the symptom. You need to get your bosses involved. If they can't dictate a reasonable logon policy, you can't possibly enforce one. Quit trying to control user actions via network limitations; policies have to come from "on high" or they're useless. Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://isaserver.org/Jim_Harrison/ http://isatools.org Read the help / books / articles! On Sun, 02 May 2004 21:15:13 +0500 "Cyber quest" <cyberquests@xxxxxxxxxxx> wrote: http://www.ISAserver.org Hello Well wht u said is right but i need help on this issue There must be some way of blocking MAC addresses another problem is that when i disable any software using ISA Firewall client application setting softwares still work for eg I blocked Kaaza value disable n value 1 but the user from its client pc is able to change its value to 0 and software start to work give me any idea to stop it another thing that user rename the blocked software like KAAZA.EXE TO msnmsgr.exe n using these blocked softwares. HELP ME PLZZZ i am helpless now Thx Beautiful StrangerSTOP MORE SPAM with the new MSN 8 and get 2 months FREE* ------------------------------------------------------ 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: jim@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')