i have a cisco 4000 router that i'm having problems with. y problem is the we just applied the ACL to the proper interfaces. After we did that certain programs that have to use specific ports aren't working. I'm trying to figure out how to allow access to specific ports through the router. I know it is the router because the second that i give a workstation a static IP in the unlimited access scope, the program works fine. Any help wold be greatly appriciated. thanks for your help.