D-Link DFL-1600 User Manual page 183

18.4. H.323
WebUI
:
1. Outgoing Rule
Rules IP Rules
Enter the following:
Name: H323AllowOut
Action: Allow
Service: H323
Source Interface: LAN
Destination Interface: any
Source Network: lan-net
Destination Network: 0.0.0.0/0 (all-nets)
Comment: Allow outgoing calls.
Then click OK
2. Incoming Rule
Rules IP Rules
Enter the following:
Name: H323AllowIn
Action: Allow
Service: H323
Source Interface: any
Destination Interface: LAN
Source Network: 0.0.0.0/0 (all-nets)
Destination Network: lan-net
Comment: Allow incoming calls.
Then click OK
Using Private IP Addresses
In this scenario a H.323 phone is connected to a D-Link Firewall on a
network with private IP addresses. To make it possible to place a call from
this phone to another H.323 phone on the Internet, and to allow H.323
phones on the Internet to call this phone, we need to configure firewall rules.
Add IP Rule:
Add IP Rule:
D-Link Firewalls User's Guide
163