troubleshooting Question

Using a 2621Xm Cisco router how best to use an access-list to protect the firm from attacks through our Internet connection

Avatar of dllowry2
dllowry2 asked on
Software Firewalls
8 Comments2 Solutions360 ViewsLast Modified:
I ask this because we are seeing very High CPU utilization on our router.  And it all appears to be from the IP input process when doing a Show Proccesses CPU.  
So I would like to setup an accesslist for the Internet Interface to block everything except specific ports and internet traffic.  Any detailed links that could give me an example that I could copy from? or alternate Idea's that dont include purchasing a PIX .  I would like to see my router perform this function.
Thanks
500 Points if I can bring this CPU utilization back to normal with a fix.

 
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