cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
526
Views
0
Helpful
3
Replies

find ip of host from router

marcusbrutus
Level 1
Level 1

If a router is connected to a network with several pc hosts and the ip of these hosts are not configured with a hostname on the router, furthermore, the mac address of these hosts are unknown, is there a way to find the ip add of a certain pc from the router console granting that this particular pc is a server (e.g. accounting server )?

I would be grateful for any info on this.

3 Replies 3

Amit Singh
Cisco Employee
Cisco Employee

The only way to know this is by checking the PC' s MAC address and then checking the ARP table on the router by using "show arp". To check the PC's mac address go to START--> RUN--> CMD-->ipconfig/all.

You can also use a freeware tool " CCgetmacaddress", this tool will give you IP by MAC or MAC by IP.

-amit singh

Is there no way to find the ip add of a server from the router without going physically to the server?

Note: The mac add of the server is unknown and no hostnames existing in the router.

Hi

Unfortunately no. The router has an arp table which maps IP addresses to mac-addresses. If you knew one you could get the other but as you don't know either it is impossible to tell.

What is it you are trying to do exactly ?

HTH

Jon

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: