How can I find a MAC address if arp -a 192.168.54.169 says no ARP entries ???

I am trying to do reservations and I need MAC addresses of certain IPs but arp -a doesn't work

Pls advise
dorgunrAsked:
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KaliKoderCommented:
Hello dorgunr,

Have you tried doing a "ipconfig /all" on a command prompt. This is when you are physically sitting on that machine. You can also look at these free utilities that would tell you that remotely for the whole network:
http://www.petri.co.il/quickly_find_remote_open_ports_gui.htm

Thanks
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KaliKoderCommented:
Also, I saw you said that arp -a 192.168.54.169 is not working. Prior to doing this, did you actually try pinging 192.168.54.169 ? Can you first ping the machine with its ip, and then do arp -a thatipaddress
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ikm7176Sr. IT ManagerCommented:
The address resolution protocol (ARP) cache is a list of recently resolved IP address to Media Access Control (MAC) address mappings. The MAC address is the unique physical address embedded in each network adapter.

If an entry in the ARP cache is incorrect, IP datagrams may be sent to the wrong computer. To display all mappings currently in the ARP cache, use the ARP command by typing arp -a at a command prompt. You should receive either a "No ARP Entries Found" message (if the ARP cache is empty) or a response similar to the following:

   Interface: 10.1.1.3 on Interface 2
   Internet Address      Physical Address      Type
   10.1.1.7              08-00-02-06-ed-20     dynamic
   10.1.1.254            08-00-02-0a-a3-10     dynamic
                        

To remove any incorrect entries in the ARP cache, clear all entries using the following command:
arp -d <IP address>
Where <IP address> is an Internet address stored in the ARP cache. Use this command for each entry in the ARP cache until all entries have been deleted.

For more information on the syntax, options, and usage of the ARP command, type arp -? at a command prompt.
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crissandCommented:
Use netscan, is free from
http://www.softperfect.com/

If will show you quickly all the mac addresses in a network.
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rhettleeCommented:
or try invoking on the command prompt nbtstat -A theipaddress
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dorgunrAuthor Commented:
Thanks !!!
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