Chapter 8 Network Address Translation (NAT)
P-660H-T1v3s User’s Guide
115
8.5 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 P-660H-T1v3s registers with the SIP
register server, the SIP ALG translates the P-660H-T1v3s’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 P-660H-T1v3s is behind a SIP ALG.
Use this screen to enable and disable the SIP (VoIP) ALG in the P-660H-T1v3s. To
access this screen, click Network > NAT > ALG.
Figure 42
Network > NAT > ALG
The following table describes the fields in this screen.
Server
Mapping Set
Only available when Type is set to Server.
Select a number from the drop-down menu to choose a port forwarding
set.
Edit Details
Click this link to go to the Port Forwarding screen to edit a port
forwarding set that you have selected in the Server Mapping Set field.
Back
Click this to return to the previous screen without saving.
Apply
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
Table 26
Network > NAT > Address Mapping: Edit (continued)
LABEL
DESCRIPTION
Table 27
Network > NAT > ALG
LABEL
DESCRIPTION
Enable SIP ALG
Select this to make sure SIP (VoIP) works correctly with port-
forwarding and address-mapping rules.
Apply
Click this to save your changes.
Reset
Click this to restore your previously saved settings.
Summary of Contents for P-660H-T1 v3s
Page 2: ......
Page 8: ...Safety Warnings P 660H T1v3s User s Guide 8...
Page 10: ...Contents Overview P 660H T1v3s User s Guide 10...
Page 18: ...Table of Contents P 660H T1v3s User s Guide 18...
Page 19: ...19 PART I User s Guide...
Page 20: ...20...
Page 26: ...Chapter 1 Introduction P 660H T1v3s User s Guide 26...
Page 36: ...Chapter 3 Status Screens P 660H T1v3s User s Guide 36...
Page 66: ...Chapter 5 Setup Wizard P 660H T1v3s User s Guide 66...
Page 67: ...67 PART II Technical Reference...
Page 68: ...68...
Page 88: ...Chapter 6 WAN Setup P 660H T1v3s User s Guide 88...
Page 104: ...Chapter 7 LAN Setup P 660H T1v3s User s Guide 104...
Page 124: ...Chapter 9 Firewalls P 660H T1v3s User s Guide 124...
Page 134: ...Chapter 11 Static Route P 660H T1v3s User s Guide 134...
Page 160: ...Chapter 15 Remote Management P 660H T1v3s User s Guide 160...
Page 176: ...Chapter 17 System Settings P 660H T1v3s User s Guide 176...
Page 202: ...Chapter 21 Troubleshooting P 660H T1v3s User s Guide 202...
Page 210: ...210...
Page 234: ...Appendix A Setting up Your Computer s IP Address P 660H T1v3s User s Guide 234...
Page 244: ...Appendix B Pop up Windows JavaScripts and Java Permissions P 660H T1v3s User s Guide 244...
Page 254: ...Appendix C IP Addresses and Subnetting P 660H T1v3s User s Guide 254...
Page 262: ...Appendix E Legal Information P 660H T1v3s User s Guide 262...
Page 268: ...Index P 660H T1v3s User s Guide 268...
Page 269: ...Index P 660H T1v3s User s Guide 269...
Page 270: ...Index P 660H T1v3s User s Guide 270...