I am testing the ipsec protocol for school on a CISCO 871. And the IPSEC isnt always up.. if i want to get it up i ping the router or from the router to the other subnet..
And if i want to test the tunnel when its up, i get always Checking peer connectivity Failed..
Why is that..
Ive tried with DPD( keep alive: 10 sec, retry: 2 sec, dpd type: on-demand )