Re: RARP on MAC address?
[EMAIL PROTECTED] writes: Hello all! I have a MAC address (ethernet address) that I'm trying to figure out what IP is associated with it. I know that there is a Reverse Address Resolution Protocol (RARP) that these machines use to determine these types of things transparent to the user. Is there a command line version where I could enter a MAC address and get it to do the RARP and return an IP to me? Have you tried something like 'arp -a | grep MAC'? This yields a hostname which can be fed into nslookup. Unfortunatly, this will only work if that machine is in your arp cache. = man arp Torsten -- What a depressingly stupid machine The Restaurant at the End of the Universe PGP Public Key is available -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: RARP on MAC address?
Have you tried something like 'arp -a | grep MAC'? This yields a hostname which can be fed into nslookup. if the addy is in the cache, 'arp -an' will list the ip addy and the MAC addy. no nslookup needed. 'tcpdump -e' will list MAC addresses in the dump and you can then see who the owner of that MAC address is. m* -- The Shining One -- -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
RE: RARP on MAC address?
If you want a quick-and-dirty one-liner to find the IP address of a MAC address you could use something like: arp -na | grep MAC ADDRESS | cut -f1 man arp is your friend. On 07-Oct-97 [EMAIL PROTECTED] wrote: Hello all! I have a MAC address (ethernet address) that I'm trying to figure out what IP is associated with it. I know that there is a Reverse Address Resolution Protocol (RARP) that these machines use to determine these types of things transparent to the user. Is there a command line version where I could enter a MAC address and get it to do the RARP and return an IP to me? Cheers! Richard.. - Richard Dansereau Email: [EMAIL PROTECTED] Home page: http://pobox.com/~rdanse Electrical and Computer Engineering - University of Manitoba - Canada - -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] . -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: RARP on MAC address?
Yes, I did know this method.. but, this doesn't help at all if the address isn't in your arp tables. I'm looking for a method of finding it if it ISN'T in the arp tables which is currently my problem. Richard.. If you want a quick-and-dirty one-liner to find the IP address of a MAC address you could use something like: arp -na | grep MAC ADDRESS | cut -f1 man arp is your friend. On 07-Oct-97 [EMAIL PROTECTED] wrote: Hello all! I have a MAC address (ethernet address) that I'm trying to figure out what IP is associated with it. I know that there is a Reverse Address Resolution Protocol (RARP) that these machines use to determine these types of things transparent to the user. Is there a command line version where I could enter a MAC address and get it to do the RARP and return an IP to me? Cheers! Richard.. - Richard Dansereau Email: [EMAIL PROTECTED] Home page: http://pobox.com/~rdanse Electrical and Computer Engineering - University of Manitoba - Canada - -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] . - Richard Dansereau Email: [EMAIL PROTECTED] Home page: http://pobox.com/~rdanse Electrical and Computer Engineering - University of Manitoba - Canada - -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: RARP on MAC address?
On Wed, 8 Oct 1997 [EMAIL PROTECTED] wrote: Yes, I did know this method.. but, this doesn't help at all if the address isn't in your arp tables. I'm looking for a method of finding it if it ISN'T in the arp tables which is currently my problem. Proof by exhaustion: ping -c 1 nnn.nnn.nnn.xxx for all xxx and it'll appear in your arp table. (If you know vaguely where it is.) -- David Wright, Open University, Earth Science Department, Milton Keynes MK7 6AA U.K. email: [EMAIL PROTECTED] tel: +44 1908 653 739 fax: +44 1908 655 151 -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
RARP on MAC address?
Hello all! I have a MAC address (ethernet address) that I'm trying to figure out what IP is associated with it. I know that there is a Reverse Address Resolution Protocol (RARP) that these machines use to determine these types of things transparent to the user. Is there a command line version where I could enter a MAC address and get it to do the RARP and return an IP to me? Cheers! Richard.. - Richard Dansereau Email: [EMAIL PROTECTED] Home page: http://pobox.com/~rdanse Electrical and Computer Engineering - University of Manitoba - Canada - -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
Re: RARP on MAC address?
[EMAIL PROTECTED] wrote: I have a MAC address (ethernet address) that I'm trying to figure out what IP is associated with it. I know that there is a Reverse Address Resolution Protocol (RARP) that these machines use to determine these types of things transparent to the user. Is there a command line version where I could enter a MAC address and get it to do the RARP and return an IP to me? You don't need RARP except for a diskless boot. RARP says, Here I am (with MAC address ...); what is my IP address? To find the IP address of a MAC interface *which*your*machine*has*seen*, use `/usr/sbin/arp -a -n' (the -n returns the IP address rather than the name). I don't think that there is any way to find the IP address of an arbitrary MAC device which isn't on the current network. -- Oliver Elphick[EMAIL PROTECTED] Isle of Wight http://lfix.co.uk/oliver PGP key from public servers; key ID 32B8FAA1 -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word unsubscribe to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED] .
