[geeks] MAC - IP address

[Bryan Fullerton]

On 8/18/05, Brian Dunbar <brian.dunbar at liftport.com> wrote:
> If the device is set to acquire it's IP via DHCP, I should be able to
>
> arp -s 172.2.3.4 ff:ff:ff:ff:ff:ff
>
> (where 172.2.3.4 is an unused IP on the net)
>
> and then ftp/telnet in, grab the setting file and then I'll know what
> it's IP is, pass that along to a label printing application and all is
well.

Erm, no - the device isn't going to respond requests sent to an IP
address that isn't configured, even if you get the packets through
it's lower protocol layers.

There should be some way to check which MAC is assigned which IP on
your DHCP server, unless it's entirely useless.

Bryan