Mini ethernet port as a solution to imac dead ethernet port

I have an old imac 2002 version and it works great but the ethernet port is dead ...not sure why...but I have checked the cables and connections with another computer and they are fine...So assuming that the port is dead
Can I purchase a mini and use the ethernet port as my connection to the internet via dsl modem and still use my imac...what I'm wondering is can the mini act as a second hard drive and can I network it to my imac via firewire and the use the etherport from the mini to get on the internet....directing it all through my imac?
I have been told in order to get my imac to connect with a dead ethernet port I need to purchase a new motherboard. That seems like a simple solution...but my imac works great except the ethernet...so if I can find a solution that will just offer me a ethernet connection to the internet and still let me use my imac and give me more memory ...all the better...
I am not well versed on the mini....So I need some expert advise as to whether it could be a alternative solution...that would also give me additional harddrive.
Help!

Yes indeed. Your plan will work (I have done similar with mini/powerbook and powermac).
In a nutshell - set up the new mini to use the ethernet. Once the network is running, go to Sharing preference pane and select the internet "tab". Choose to share the Built-In Ethernet with the Built-in Firewire - and click start.
Then connect the mini to the iMac with a firewire cable. Set the iMac to use firewire for its network.
The only possible gotcha is if you are not on the latest OS (this should work back a version or two - but I don't recall when I first did this). Second gotcha might be the firewall on the mini. You may have to enable logging to see if the firewall is preventing the iMac to connect in and through to the internet. If so - you have to live with opening up some ports on your firewall or learn how to configure that one iMac to get in and not the rest of the world (assuming you don't have a router or other firewall device to protect the new mini.)
Cheers and good luck.

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<Email Edited by Host>

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Mini ethernet port as a solution to imac dead ethernet port

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