Planet MH-2300 User Manual page 155

Step 4. Under Policy Object > Service > Group add a group named
"Main_Service" which is consisted of DNS, FTP, HTTP, POP3, and
SMTP services. Next, add another one named "Mail_Service" to group
DNS, POP3, and SMTP services.
Step 5. Under Policy > Incoming, set as shown below:
Select the mapped IP (61.11.11.12) for Destination Address.
Select"Mail_Service"for Service.
Click OK.
Creating a Policy to Apply the Service Group Settings
The Group Settings for Server IP Addresses
Policy Successfully Created
Gigabit Multi-Homing VPN Security Gateway
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MH-2300