Can ISA Server track clients by their MAC addresses?
My brother is an ISP who also deals in wireless; he wants to know if ISA will keep track of
clients via MAC addresses.
question. You mention wireless -- are you asking if ISA can be configured to only
accept requests from specific MAC addresses? If so, the answer is, "Not to my knowledge." However,
in the Wi-Fi (wireless fidelity) world, MAC address filtering is best performed at the Wireless
Access Point. If ISA performed the MAC filtering, someone who connected to your wireless network
could still gain access to all internal systems -- a greater threat than being able to access the
If you're asking if there's a way to track actions logged by ISA using the IP address back to
the system's physical MAC address, that can be done manually by resolving the IP address to the MAC
address by using the DHCP administrative tools, or by simply using the "arp -a" command from a
This was first published in December 2002