Step 2. Enter the VPN name, VPN_A in IPSec Autokey window, and choose From Source to
be Internal. Fill the subnet IP, 192.168.10.0 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 B‟s subnet IP and mask.
Step 4. In Authentication Method Table, choose Preshare and enter the Preshared Key. ( The
max length is 100 bits.)
Step 5. In Encapsulation or Authentication table, choose ISAKMP Algorithm. For
communication via VPN, we choose 3DES for ENC Algorithm and MD5 for AUTH Algorithm.
And select Group to connect.
- 148 -