[Sheflug] find unknown ip address of device with known mac address

["Chris Johnson" <chris [at] xxxxxxxxxxxxx>]

I've just had the misfortune to be installing an adsl router that was
shipped with an incorrect instruction sheet.  The config software comes on a
CD for windows and the router can be configured via USB.  Which is OK if a)
it works and b) you have a windows box.
So I had to configure it via its web interface via the LAN socket.  Which
would have gone OK if they'd told me the correct default IP address.  I
tried 192.168.7.1 which was in the instructions but it wouldn't work.  So I
started at 192.168.1.1 hoping that it wouldn't be long before I found the
correct address.  Fortunately this one worked but what if I'd had less luck?
I thought you could use arp and rarp to find the ip address of a device
who's mac address you know but under suse arp and rarp return "command not
found".

Any help appreciated.

Chris Johnson
ICT Consultant
South East Sheffield Education Action Zone
E-mail : chris [at] seseaz.org.uk
Web : http://www.seseaz.org.uk

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