The WEP key is the "security password" for your home router. Assuming you haven't changed it, it should look something like this:
Originally Posted by Tinkfan, post: 251024
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You'd need to enter this key in the connection information on your iPod touch when you first setup access to your network. You should only have to enter it the one time.
Don't know what the "router number" is. Is that on the bottom of your router? You should be able to safely ignore that one. The WEP key is what's important if yours is a "vanilla" setup.
Tom (:macwave:... lemme know if this doesn't work)