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August 14, 2014

Finding IP address to MAC and vice versa on same network (subnet) or different subnet which is reachable by ping

Hi all,

After long time I got a chance to write the blog.

 

This time it is related to networking.

 

Finding out which all the system up on the network

Syntax

cmd> nmap –sP < regex IP >

Example

cmd> nmap –sP 192.168.1.*

 

Finding MAC address of a device which is connected in same network

Syntax

cmd> ping <broadcast address>

cmd> arp –a [ <IP address> ]

 

Example

cmd> ping 192.168.1.255

cmd> arp –a –> Gives all the IP address and MAC address in the same subnet network

cmd> arp –a 192.168.1.25 –> Give the MAC of the specified IP address

 

arp –a : Lists all the IP addresses which are recently got into network with its MAC addresses

 

Finding MAC address of a device which is connected in same network but different subnet

Syntax

nbtstat –A <IP address>

Example

nbtstat –A 192.168.2.45

 

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