[USR-TC] Question about filters

Hopefully someone can help. I've seen mention of filters on the list a couple times, but never anything I could completely follow. Need to figure out how to create a filter, and I know NOTHING about how to go about doing that. I want to create a filter to allow a particular to user to access only a single, specific IP address. I need to know not only what has to be in the filter, but how to go about putting it on the ARC and enabling it and such. Thanks in advance if you can help. Thanks, Joel