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New Member

why the authentication fails ?

i am doing a site-to-site vpn experiment with two is 3660(Ra).another is provided by other(Rb).if Ra initiates the negotiation, a new isakmp sa can be got but authentication fails.otherwise Rb is the initiator, the isakmp sa negotiation can be finished normally.i migrated the configurations of Rb to a 3640 router unchanged.the negotiation of the phase 1 exchange is finished normally without regard to the direction.Rb's provider assured their products were compatible with RFC2409 strictly.does Cisco have some private policies in the authentication during the phase 1 negotiation?

any help would be appreciated

New Member

Re: why the authentication fails ?

Check your IOS. Sounds like a bug to me. Anyone else run into this?

New Member

Re: why the authentication fails ?

i work it out, is it a bug, or a proprietary policy?