<a href="http://www.nwfusion.com/reviews/2003/0714revside1.html">Filtering Dos and Don’ts</a>

Filtering routers don’t get a lot of attention these days. But they’re still a great first line of defense with the right ACLs (access control list) configured. This recent NWFusion article is a good primer for anyone not aware of what filters on routers can do and a great reminder to anyone who hasn’t checked their router ACLs lately.