How do I find my MAC address?
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If you are in WIndows open a comand prompt by going to Start > Run > at the prompt type 'cmd' without the quotes once the black command prompt opens type 'ipconfig /all' without the quotes. Once the info is displayed look for something that says 'Physical Address' It will look something like this:         \nPhysical Address. . . . . . . . . : 00-13-20-36-B3-7E\n\nHope that helps!
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click on aol help and look for import/export addresses
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Turn on MAC filtering and make sure your computers MAC addresses (these are the hardware addresses burned onto the card by the manufacturer...you can see the physical address by doing an ipconfig /all on the command line).  \n\nYou should also turn on WEP or WAP encryption and set an encryption string.  You'll have to enter it into your computers, but the intruder won't know what it is...and won't be able to use your system anymore.
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http://myipaddress.com
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It's easy. There is a load of information on Mac OS X in the Help menu of Finder that you can use and in Sherlock.app that comes with a Mac. The Apple site also has a lot of info on using and troubleshooting on most everything Mac, one only has to find it.\nhttp://www.apple.com/support/switch101/\nhttp://www.apple.com/support/mac101/
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http://www.macoptions.com/mactips.html
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Click start, then click on My Network Places.  Then on the left hand side clikc View My Network Connections. Then right click on the wireless icon.  Find your connection in the box that lists all the connections.  Double click on it and it should bring up a box.  On that screen should be the box for the network key and the confirm network key.
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The internet uses TCP/IP, which is platform independent. You're provider may not know where to look to set up the Mac's tcp/ip settings. It's in System Preferences, Network, but odds are that your office is using DHCP to distribute ip addresses, and the Mac will automatically detect that, so you might not need to do anything other than connect to the LAN. \n\nIf you have more questions, try the site below.
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enable Mac address authentication, this will display the names of the devices connected to your Wi Fi, then just select the devices you want to  access your WiFi.\nNetgear 192.168.1.1\nLinksys  192.168.1.2
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in general yes,\nbut it depends on connection type,\nif both computers are on the same network then it is possible to know the physical address. but if they are connected by routing (routers) then it impossible to get the physical address of the sender.\n\n======MORE INFO======\nIt is in every frame the router recieves so the router can resolve MAC address to id address by its table.
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Aside from phsyically changing your network card or adding a new one, VMware will allow you to specify a MAC address.\n\nThis can potentially get you into alot of trouble!
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As soon as you give your computer a name it will show up in network neigborhood. Most likely you have done this while setup the OS.\nRight click on My computer / Tab Network Identification / Properties
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If you're currently using his computer go just go to the following address and it will tell you\nhttp://www.whatismyipaddress.com/staticpages/index.php/0whatismyipaddress
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click on dashboard. right next to finder, there will be a little + sign. click it. voila!\np.s. you could have found all of this in Mac Help:)
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MAC-48 and EUI-48\n\nMedia Access Control address (MAC address)\nExtended Unique Identifier (EUI)
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You can use the hostinfo command.  Just type "hostinfo" from the Terminal command line and press Return.  If that doesn't work, type "/usr/bin/hostinfo" and press Return.\n\nFor more information about this command, type "man hostinfo" and press Return.
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Another way is to find out what the IP address of your computer is, then compare it to the number on whatismyip.com (I find this to be easier).  If you're using Windows XP, just double-click your Local Area Connection in Network Connections --  your computer's IP address is on the Support tab.