I would like to use a policy map and acl to stop all Code Red from entering my network on my 3640 router. I have 4 serial ports and 2 fast ethernet ports. The serial ports are connected to 2 different ISP's (2 T-1's per ISP). From some of the things that I have read, I would need to use CEF to accomplish this. Is that a true statement or can I use the fast-packet switching instead. My 1 ISP does not support CEF.
