The ping of death Protection options
Hello
I want to secure my network against ping of death attack. The IOS IDS allow the detection of this type of traffic, but it drops the ICMP packet? If I have any FW IOS, what are my options to protect my router, is this ACL enough:
access-list 101 deny icmp any any fragment
Thanks for your help and your comments!
François
Hello Francois,.
You asked "could someone confirm me that the IOS IDS is also able to prevent these reach by Ping ICMP 'abandonment' of the death packages? Response will be displayed. By configuration Cisco IOS Firewall Intrusion Detection System
http://www.Cisco.com/univercd/CC/TD/doc/product/software/ios122/122cgcr/fsecur_c/ftrafwl/scfids.htm
2154 Ping of death attack, Atomic
Triggers when an IP datagram is received with the Protocol field in the header set to 1 (ICMP), IP the last Fragment is defined, and
(Offset IP * 8) + (length of IP data) > 65535
In other words, the offset of the intellectual property (which represents the starting position of this fragment in the original packet, and which is in units of 8 bytes) and the rest of the package exceeds the maximum size of an IP packet.
Hope that helps! If Yes, please rate.
Thank you
Tags: Cisco Security
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