Chapter 7 Tutorials

2Create a host address object named IPPBX-Public for the public WAN IP address 1.1.1.2.

Figure 121 Creating the Public IP Address Object

7.12.3 Setup a NAT Policy for the IPPBX

Click Configuration > Network > NAT > Add.

•Configure a name for the rule (WAN-DMZ_IPPBX here).

•You want the IPPBX to receive calls from the WAN and also be able to send calls to the WAN so you set the Classification to NAT 1:1.

•Set the Incoming Interface to ge2.

•Set the Original IP to the WAN address object (IPPBX-Public). If a domain name is registered for IP address 1.1.1.2, users can use it to connect to for making SIP calls.

•Set the Mapped IP to the IPPBX’s DMZ IP address object (IPPBX-DMZ).

•Set the Port Mapping Type to Port, the Protocol Type to UDP and the original and mapped ports to 5060.

•Keep Enable NAT Loopback selected to allow the LAN users to use the IPPBX (see NAT Loopback on page 393 for details).

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ZyWALL USG 2000 User’s Guide