IPSEC Config

The_guroo_2 · ‎09-24-2007

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

pstebner1 · ‎09-25-2007

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

hth, Paul

The_guroo_2 · ‎09-25-2007

Thanks mate........it really helped

jwalker · ‎09-27-2007

As a side note, the HMAC simultaneously provides data integrity in addition to origin authentication.

Jay