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i am doing a site-to-site vpn experiment with two router.one 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 ca...
can the sa negotiations be initiated? after ping, use the command "show crypto isakmp sa" to get the status,if no isakmp sa got,perhaps there are some problems in your configurations,you'd better check ACLs and its binding to the map,as well as apply...