I have impleneted NBAR and access-list on my router to block Code Red worm from hitting the servers. The servers are patched, but my understanding is by implementing the NBAR and access-list, I could prevent Code red traffic from hitting the servers.
I am still seeing Code Red traffic behind the router. When I analyzed the Code Red traffic from the IDS, I saw Get command and the /default.ida NNNNNNNNNNNNNNNN command are in two separate packets. Does the NBAR solution work if the exploit is broken down in more than one packet???
Because all the Code Red traffic I see behind the router are in two separate packets.
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...