User`s manual

Content Security Gateway User’s Manual
- 133 -
bar on the left hand side, and then select the sub-select IPSec Autokey. Click Add.
Step 2. Enter the VPN name, VPN_B in IPSec Autokey window, and choose From Source to be Internal. Fill
the subnet IP, 192.168.20.0 and subnet mask, 255.255.255.0.
Step 3. In To Destination table, choose Remote Gateway-Fixed IP, enter the IP desired to be connected,
company A’s subnet IP and mask, 192.168.10.0 and 255.255.255.0 respectively.
Step 4. In Authentication Method Table, choose Preshare and enter the Preshared Key. ( The max length is
100 bytes.)
Step 5. Enable Aggressive mode. For communication via VPN, the Content Security Gateway will
automatically choose 3DES for ENC Algorithm, MD5 for AUTH Algorithm and select Group 2 to connect.
Local ID and Remote ID are optional parameters. If we choose to enter Local ID/ Remote ID, they couldn’t be
the same. For instance, Local ID is 11.11.11.11 and Remote ID is 22.22.22.22. If you want to use number or
text, add @ in the front, for instance, @123A and @abcd123.
Step 6. In IPSec Algorithm Table, choose Data Encryption + Authentication. We choose 3DES for ENC
Algorithm and MD5 for AUTH Algorithm.