Author Topic: Connecting to Network Devices  (Read 886 times)

Offline mbaldw

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Connecting to Network Devices
« on: Mar 02, 2009, 06:50 AM »

Offline Buffalo2102

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Re: Connecting to Network Devices
« Reply #1 on: Mar 02, 2009, 08:26 AM »
No, I don't think it can be done.

In order to understand it you need to be familiar with the OSI protocol stack model.  (http://www.interfacebus.com/Design_OSI_Stack.html)  MAC addresses are assigned at layer 2 which is a basic addressing layer that allows (MAC) addressing and transfer of data packets between addresses.

IP addresses are used at layer 3.  In order to remotely configure a PC you would need to run some kind of application (remote desktop, VNC) and applications run at a higher layer.  You can't really run those sort of applications without going through layer 3 (having an IP address assigned).

I'm not an expert but that's my understanding.

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Offline Mark H

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Re: Connecting to Network Devices
« Reply #2 on: Mar 02, 2009, 08:38 AM »
MAC addresses cannot be used per my knowledge. The only time I have used a MAC address is when giving a PC or device access to the wireless modem. The wireless modem uses mac addresses to identify PCs, but any connections are done with the IP address.

Mark H; I too am not a network expert.
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Offline mbaldw

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Re: Connecting to Network Devices
« Reply #3 on: Mar 02, 2009, 09:32 AM »
Hi Guys,

thanks very much for the responses.   Apparently, it is possible to do something similar.   According to my work's IT dept (slow day in the office!), you can use the "arp" command to assign an IP address to any given MAC.   So, you'd use the command:

arp -s <IP address> <MAC>

The PC from which you typed the command would then think that the device with that MAC would have the specified IP and you could access it as normal against the IP you've assigned it.   So far as I can tell, this is only how the remote PC sees it, but it apparently allows you to manually configure devices remotely when they lose their IP address on the network.

Cheers,
Marc.