ZyXEL Communications P-2304R-P1 Series User Manual

Chapter 8 NAT

P-2304R-P1 Series User’s Guide

Use this screen to enable and disable SIP (VoIP), FTP (file transfer), and H.323 (audio-visual) 
ALG in the ZyXEL Device. To access this screen, click Network > NAT > ALG.

Figure 53   Network > NAT > ALG

Each field is described in the following table.

Table 45   Network > NAT > ALG

Enable SIP ALG

Select this to make sure SIP (VoIP) works correctly with port-forwarding and port-

triggering rules.

Enable FTP ALG

Select this to make sure FTP (file transfer) works correctly with port-forwarding 

and port-triggering rules.

Enable H.323 

ALG

Select this to make sure H.323 (audio-visual programs, such as NetMeeting) 

works correctly with port-forwarding and port-triggering rules.

Apply

Click this to save your changes and to apply them to the ZyXEL Device.

Reset

Click this to delete every port-triggering rule.