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Using NAT and the H.323 ALG to Enable Incoming Calls

In this example, you configure the J-series device to accept incoming calls over a NAT boundary. To do this, you can create an interface NAT address pool for dynamically allocating destination addresses. This differs from most configurations, where a source pool provides source addresses only. See Figure 98.

Before You Begin
For background information, read Understanding the H.323 ALG.

Figure 98: Network Address Translation—Incoming Calls

Image g030628.gif

Interface NAT is when the source pool uses the same address as an interface IP address. You can use such address entries as destination addresses in policies, together with H.323, SIP, or other VoIP protocols, to support incoming calls.

To configure incoming calls using NAT, use either the J-Web or CLI Configuration editor.

This topic covers:

CLI Configuration
Related Topics

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