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Chapter 9 Network Address Translation (NAT)
IAD User’s Guide
111
9.5 The 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 IAD registers with the SIP register server,
the SIP ALG translates the IAD’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 IAD
is behind a SIP ALG.
Use this screen to enable and disable the SIP (VoIP) ALG in the IAD.
To access this
screen, click Network > NAT > ALG.
Figure 48
Network > NAT > ALG
Each field is described in the following table.
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 Back to return to the previous screen.
Apply
Click Apply to save your changes to the IAD.
Cancel
Click Cancel to begin configuring this screen afresh.
Table 30
Network > NAT > Address Mapping: Edit (continued)
LABEL
DESCRIPTION
Table 31
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 and to apply them to the IAD.
Reset
Click this to return to previously saved configuration.
Содержание P-3202HN-Ba
Страница 2: ......
Страница 8: ...Safety Warnings IAD User s Guide 8...
Страница 10: ...Contents Overview IAD User s Guide 10...
Страница 18: ...Table of Contents IAD User s Guide 18...
Страница 19: ...19 PART I User s Guide...
Страница 20: ...20...
Страница 28: ...Chapter 1 Introduction IAD User s Guide 28...
Страница 39: ...39 PART II Technical Reference...
Страница 40: ...40...
Страница 50: ...Chapter 4 Status Screens IAD User s Guide 50...
Страница 54: ...Chapter 5 Device Mode Screen IAD User s Guide 54...
Страница 68: ...Chapter 7 LAN Setup IAD User s Guide 68...
Страница 128: ...Chapter 10 Voice IAD User s Guide 128...
Страница 158: ...Chapter 12 Firewalls IAD User s Guide 158...
Страница 162: ...Chapter 13 Static Route IAD User s Guide 162...
Страница 173: ...Chapter 14 Quality of Service QoS IAD User s Guide 173 Figure 81 QoS Class Example VoIP...
Страница 174: ...Chapter 14 Quality of Service QoS IAD User s Guide 174 Figure 82 QoS Class Example Boss...
Страница 182: ...Chapter 15 Dynamic DNS Setup IAD User s Guide 182...
Страница 210: ...Chapter 17 Universal Plug and Play UPnP IAD User s Guide 210...
Страница 214: ...Chapter 18 System IAD User s Guide 214...
Страница 218: ...Chapter 19 Logs IAD User s Guide 218...
Страница 224: ...Chapter 21 Diagnostic IAD User s Guide 224...
Страница 230: ...Chapter 22 Troubleshooting IAD User s Guide 230...
Страница 238: ...Chapter 23 Product Specifications IAD User s Guide 238...