D-Link DFL-260E User Manual for DFL-260E - Page 307
Example 6.6. Two Phones Behind Different NetDefend Firewalls, rule has to
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6.2.9. The H.323 ALG Chapter 6. Security Mechanisms 4. Click OK 1. Go to: Rules > IP Rules > Add > IPRule 2. Now enter: • Name: H323In • Action: Allow • Service: H323 • Source Interface: any • Destination Interface: core • Source Network: 0.0.0.0/0 (all-nets) • Destination Network: wan_ip (external IP of the firewall) • Comment: Allow incoming calls to H.323 phone at ip-phone 3. Click OK To place a call to the phone behind the NetDefend Firewall, place a call to the external IP address on the firewall. If multiple H.323 phones are placed behind the firewall, one SAT rule has to be configured for each phone. This means that multiple external addresses have to be used. However, it is preferred to use a H.323 gatekeeper as in the "H.323 with Gatekeeper" scenario, as this only requires one external address. Example 6.6. Two Phones Behind Different NetDefend Firewalls This scenario consists of two H.323 phones, each one connected behind the NetDefend Firewall on a network with public IPv4 addresses. In order to place calls on these phones over the Internet, the following rules need to be added to the rule listings in both firewalls. Make sure there are no rules disallowing or allowing the same kind of ports/traffic before these rules. Web Interface Outgoing Rule: 1. Go to: Rules > IP Rules > Add > IPRule 2. Now enter: • Name: H323AllowOut 307