• Action: NAT
• Source Interface: lan
• Source Network: lannet
• Destination Interface: any
• Destination Network: all-nets
• Service: my_h323_service
• Comment: Allow outgoing H.323 calls.
3. Click OK
Create the incoming traffic SAT IP rules:
1. Go to: Policies > Firewalling > Main IP Rules > Add > IP Rule
2. Now enter:
• Name: H323In
• Action: SAT
• Source Interface: any
• Source Network: all-nets
• Destination Interface: core
• Destination Network: wan_ip (external IP of the firewall)
• Service: my_h323_service
• Comment: Allow incoming calls to H.323 phone at ip-phone.
3. For SAT enter Translate Destination IP Address: To New IP Address: ip-phone (IP address
of phone)
4. Click OK
1. Go to: Policies > Firewalling > Main IP Rules > Add > IP Rule
2. Now enter:
• Name: H323In
• Action: Allow
• Source Interface: any
• Source Network: all-nets
• Destination Interface: core
• Destination Network: wan_ip (external IP of the firewall)
Chapter 6: Security Mechanisms
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