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getting mac from ip (or the contrary)

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03-11-2009

chebarbudo chebarbudo is offline

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Join Date: Nov 2008

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Posts: 188

getting mac from ip (or the contrary)

Hi there,
I need to find a way to check that a remote machine got the correct ip address. I have a dhcp server and need to run some commands after machine M acquired address A.
There are lots of reasons why machine M could have another address:
1) DHCP not reloaded
2) Machine M offline or powered off
3) Machine M has not renewed its ip address

Is there a way to do one of the following?

Code:

if [$(getmacfromip $ip) == $mac]; then ...
if [$(getipfrommac $mac) == $ip]; then ...

Can you help me lead me in the right direction?
Thanks in advance
Santiago

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dhcp, ip address, mac

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