IPSEC Config

Unanswered Question
Sep 24th, 2007

guys just a quick one.....when we configure IKE phase 2 where we put crypto ipsec isekamp ESP-DES esp-md5-hmac....now correct me if i am wrong this is what my understanding is the first (ESP-DES) says that security protocol would be ESP and DES would b ethe encrytion type.....now the second part says that ESP would b ethe security protocol which will use ....md5 as austhentication???? now what does Hmac?? means....guys please help me out

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pstebner1 Tue, 09/25/2007 - 11:49

HMAC (hashed message authentication code) does authentication using a hash (in your case md5) in combination with a shared secret key.

hth, Paul

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