Is this a SheepShaver-related issue?
Tell us more of what you have.
*Do you have a router?
*Do you already have a home network setup (wireless router w/ ethernet ports, and a broadband internet connection)?
*What is the exact model of your netbook?
*What OS does the netbook use?
*Are you already able to surf the internet on it?
*What Mac OS do you have installed in your 7100?
*What browser(s) do you have installed in your 7100?
*Do you have an AAUI/Ethernet transceiver hooked up to your 7100 (which allows it to connect to a standard ethernet router)?
*Is your 7100 hooked up to the internet?
*How much ram and hard disk space does your 7100 have?
Also, why are you trying to network the two together? Is it for simple file-sharing or for something more sophisticated (if for something more sophisticated, i likely won't be able to help)?
Also, if you don't already have the needed Mac OS Operating System (at least OS 8.6 or 9.x), an Ethernet transceiver, you probably would go over-budget when it comes to finding a dedicated software utility that will allow you to transfer files between the two machines.
If you need a transceiver, I saw one on Amazon.com for under $12 (not including shipping)....
I'm thinking of Thursby's DAVE Classic for Mac OS 8.6 through 9.x, which alone is already $120...
The only other cheap (or hell.... "free") solution i can think of is to just use e-mail. If you have enough RAM installed in your 7100, install the Classilla browser, then use a free Gmail account to mail yourself the files you want to transfer. Simply access your Gmail account from your netbook and/or vice versa.