remote access over an analog leased line

I'm currently in the process of setting up a network of mostly low-end Power Macs. The majority of the Macs (about 15 all together) are all in the one building and are hooked up via 10BaseT ethernet cards and hubs. However I also need to install 4 remote Macs via analog leased lines (I'm not sure if I have the terminology for the line correct...I've been told it's a direct line between two points and isn't a dial-up line).  My problem is that I've very little experience with remote networking and am kinda in over my head!!  
I have purchased a copy of Apple Remote Access and have successfully connected server and client via a regular dial up line.  But I've got a feeling that ARA is not compatible with this analog leased line (or if it is it's going to need some modification).  
So I guess what I need to know is if anyone can help me out with how I can get a remote Mac onto an Ethernet network via this leased line.  
 
thanks,

kiwipete

ps....currently the leased lines are being used by a pc server and remote terminals.  The plan is to pull those out and replace them with the Macs.

kp020797Asked:
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RigadinCommented:
I havent tested it, but there is a ARA Script that can be used for Leased Line connexions (the one that you describe). Hope this helps. Get it from :
ftp://ftp.datafox.ch/pub/ara_scripts/leased line.hqx

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