I have a Cisco ASA 5520 , today a strange thing happened when we were attacked by an IP 64.62.238.46. Below are the logs from ASA
<138>Mar 06 2014 13:52:20 ASA : %ASA-2-106016: Deny IP spoof from (226.181.118.151) to 64.62.238.46 on interface inside
The Specified IP doesnt belong to us or any inside IP.
I have blocked this IP inbound/outbound and i can see the logs , but CPU is still high.
What can I do here