Ethernet over Firewire - possible?

Say you have a gigabit ethernet port on a gigabit network... is there some piece of hardware, router, anything which would let you get to the network via a firewire port?
I ask because I am working on a Powerbook with a broken ethernet port which needs access to a gigibit network. Since FW800 is comparable in speed and is capable of IP sharing, is there any way to use it to connect to a network?
Thanks!
Rey

Hi Rey, I have networked an iBook and a PC via Firewire so in my humble opinion I think it'd be possible,have a look here.
http://developer.apple.com/devicedrivers/firewire/ipoverfirewire.html
"Customers can immediately enable IP over FireWire and then connect two or more Macintosh systems by FireWire for file sharing, Internet sharing, or the use of any other IP-based service".http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh1845.html I'll have a bit more of a look around and get back to you.
Cheers.

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