This is going to tax most folk and as it's been written before I can't duplicate the web pages here.
If you are not willing to learn all about it then a router is best. Routers are less than 20 bucks now so cost can't be the problem.
Here's one way -> http://www.geekyblogger.com/2008/05/sharing-internet-connection-using-wifi.html
Again, there are many articles about this.
Bob
How to do it without a router?
Pls gimmi a full process.

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