IMac to Airport, PC to iMac via Ethernet?

Hi,
I have a 2006 iMac, and I now have a pc which I need to do some course work. My iMac is connected to the internet via Airport. This works well as my router is in another room. The pc is next to the iMac, but does not have a wireless card. Can I connect it to the iMac somehow (ethernet?) to share the internet connection?
I have tried connecting an ethernet cable between the two and going to Sharing in the system preferences but the ethernet option is not there. Is this cos I need crossover cable? I've read something about that, but I've also read that intel iMac's do not need the crossover cable.
Please help.
Thanks
Lee

Hi iLee,
No you do not need a crossover cable. Ethernet ports on Intel iMacs (and indeed all current Macs) are auto-sensing and thus do not need them.
In order to set this up, connect the two computers with a known good Ethernet cable. Then on the iMac, go to *System Preferences* > Sharing Next select *Share connection from* > AirPort and then To > Ethernet. Finally put a check next to *Internet Sharing*.
You don't mention what OS the PC is using, but it will need to be configured to use DHCP.
Note that the iMac will need to be on and connected to the Internet any time you want to use the PC to connect to the Internet. Pretty obvious but you'd be surprised how many people forget this.
Best of luck.

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