Hi John, ISA doesn't ARP, but the TCP/IP stack does. That's how TCP/IP works at layer two. HTH, Tom Thomas W Shinder www.isaserver.org/shinder ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp -----Original Message----- From: John Tolmachoff [mailto:jtolmachoff@xxxxxxxxxxxxxxxx] Sent: Friday, February 28, 2003 4:54 PM To: [ISAserver.org Discussion List] Subject: [isalist] ARP Importance: High http://www.ISAserver.org Does ISA ARP for all address on the internal network? John Tolmachoff MCSE, CSSA IT Manager, Network Engineer RelianceSoft, Inc. Fullerton, CA 92835 www.reliancesoft.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 ------------------------------------------------------ Exchange Server Resource Site: http://www.msexchange.org/ Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: tshinder@xxxxxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')