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Chapter 6 Network Address Translation (NAT) Screens
P-660R-F1 Series User’s Guide
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The following table describes the fields in this screen.
6.6 The SIP ALG Screen
Some NAT routers may include a SIP Application Layer Gateway (ALG). A SIP ALG allows SIP calls
to pass through NAT by examining and translating IP addresses embedded in the data stream.
When the ZyXEL Device registers with the SIP register server, the SIP ALG translates the ZyXEL
Device’s private IP address inside the SIP data stream to a public IP address. You do not need to
use STUN or an outbound proxy if your ZyXEL Device is behind a SIP ALG.
Use this screen to enable and disable the SIP (VoIP) ALG in the ZyXEL Device. To access this
screen, click
Network > NAT > ALG.
Figure 46
Network > NAT > ALG
Table 28
Port Forwarding Rule Setup
LABEL
DESCRIPTION
Active
Click this check box to enable the rule.
Service Name
Enter a name to identify this port-forwarding rule.
Start Port
Enter a port number in this field.
To forward only one port, enter the port number again in the
End Port
field.
To forward a series of ports, enter the start port number here and the end port
number in the
End Port
field.
End Port
Enter a port number in this field.
To forward only one port, enter the port number again in the
Start
Port
field above
and then enter it again in this field.
To forward a series of ports, enter the last port number in a series that begins with
the port number in the
Start Port
field above.
Server IP
Address
Enter the inside IP address of the server here.
Back
Click
Back
to return to the previous screen.
Apply
Click
Apply
to save your changes back to the ZyXEL Device.
Cancel
Click
Cancel
to begin configuring this screen afresh.
Summary of Contents for P-660R-F1 series
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Page 8: ...Certifications P 660R F1 Series User s Guide 8 ...
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Page 62: ...Chapter 4 WAN Setup P 660R F1 Series User s Guide 62 ...
Page 104: ...Chapter 7 Firewalls P 660R F1 Series User s Guide 104 ...
Page 140: ...Chapter 9 Certificates P 660R F1 Series User s Guide 140 ...
Page 144: ...Chapter 10 Static Route P 660R F1 Series User s Guide 144 ...
Page 162: ...Chapter 12 Dynamic DNS Setup P 660R F1 Series User s Guide 162 ...
Page 190: ...Chapter 15 System P 660R F1 Series User s Guide 190 ...
Page 204: ...Chapter 16 Logs P 660R F1 Series User s Guide 204 ...
Page 212: ...Chapter 18 Diagnostic P 660R F1 Series User s Guide 212 ...
Page 216: ...Chapter 19 Troubleshooting P 660R F1 Series User s Guide 216 ...
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