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ISAKMP and OSI layer
I'm trying to find out on which OSI layer the ISAKMP protocol resides on?
It isn't listed under the wiki's list of network protocols, and the internet says it's either on the transport, network or ...
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Why should an IKE responder change the cookie secret 'frequently'?
IKEv2 has the concept of a COOKIE mode, to attempt to prevent state exhaustion from floods of initiation requests from non-existent IP addresses:
Two expected attacks against IKE are state and CPU ...
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