I am facing some issues with vpn tunnel.I have formed the vpn tunnel between cisco pix (ver 7.2) and fortigate(othervendor).
Once i initiate tunnel from fortigate i can see ike phase up with ipsec up
for eg 1 IKE and 5 IPSEC and all subnets will be reachable at that moment aftersome time few subnets go unreachable.When i check pix i can see IKE phase will be fine but 2 IPSEC up. what might be the reason for this instability?
i set 86400 sec for both phase 1 and phase 2 on both devices