@Clive_A Linking ER605 with Fortigate or Cisco through GRE over IPSec may be new use case, but the error "For an IPsec policy with the same IP address at both ends, the parameters in Phase-1 should...

@Clive_A Yes. In our case, it's Cisco.

@Toshi11 If we set up Phase-1 parameters with any of aes algorithms in IPsec setup, the result of "show all ikev1 policy" command will show the type of algorithm along with number of bits. So I...

@Toshi11 In order to understand what needs to be set in the Phase-1 parameters to keep both IPsec and GRE settings the same, I tried to find out what is implicitly set in the GRE configuration....

Hello, I'm setting up VPN connection between our remote office LANs through GRE over IPsec. First I tried to set it up following the steps in the user's guide in the link below....