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JasWalker · 04-30-2004, 02:15 PM

Does anyone know how to in effect "ping" a mac address to generate an ip?

Pragma · 04-30-2004, 04:21 PM

Do you mean an ARP lookup to determine the IP from a MAC address?

yodapaul · 04-30-2004, 06:17 PM

Quote:

Originally posted by JasWalker
how to in effect

I'm not quite sure what your asking here, but as said above it sounds like an ARP request. ARP is part of the TCP/IP stack, you might be able to find a utility that will do the ARP lookup. However, if you are trying to do a ARP request on a web site, you might only get the address of your local Internet Gateway.

JohnnyRoyale · 05-01-2004, 09:20 AM

I think you're thinking or RARP, which is Reverse Address Resolution Protocol. That will take a mac address and try and determine the IP.

Please note, however, that RARP is local subnet only, and is usually not forwarded across a router.

I think Linux comes with a rarp command, I know there's no built in RARP in Windows, you'll need to download something to get that.

Pragma · 05-01-2004, 10:28 AM

You can, however, view the ARP cache in Windows by typing in a command prompt:
arp -a

GoogleMeister · 05-01-2004, 08:50 PM

Gotta go with Pragma on this one. The easiest way to determine the IP related to a MAC address when all you have is the MAC address is by arp -a.

One question, though...

How is it that you have the MAC ddress and not the IP address?

04-30-2004, 02:15 PM	#1 (permalink)
JasWalker Rookie Join Date: May 2003 Location: In front of my computer	Networking Tool Does anyone know how to in effect "ping" a mac address to generate an ip?

04-30-2004, 04:21 PM	#2 (permalink)
Pragma I am Winter Born Join Date: Apr 2003 Location: Alexandria, VA	Do you mean an ARP lookup to determine the IP from a MAC address? __________________ Eat antimatter, Posleen-boy!

05-01-2004, 09:20 AM	#4 (permalink)
JohnnyRoyale Psycho Join Date: Jan 2004 Location: Boston, MAss., USA	I think you're thinking or RARP, which is Reverse Address Resolution Protocol. That will take a mac address and try and determine the IP. Please note, however, that RARP is local subnet only, and is usually not forwarded across a router. I think Linux comes with a rarp command, I know there's no built in RARP in Windows, you'll need to download something to get that. __________________ I'm gonna be rich and famous, as soon I invent a device that lets you stab people in the face over the internet.

05-01-2004, 10:28 AM	#5 (permalink)
Pragma I am Winter Born Join Date: Apr 2003 Location: Alexandria, VA	You can, however, view the ARP cache in Windows by typing in a command prompt: arp -a __________________ Eat antimatter, Posleen-boy!

05-01-2004, 08:50 PM	#6 (permalink)
GoogleMeister Rookie Join Date: Apr 2004	Gotta go with Pragma on this one. The easiest way to determine the IP related to a MAC address when all you have is the MAC address is by arp -a. One question, though... How is it that you have the MAC ddress and not the IP address?