Chapter 9 Network Address Translation (NAT)
AMG1302-T10A User’s Guide
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The following table describes the fields in this screen.
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 Device registers with the SIP register server, the SIP ALG translates the 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 Device is behind a SIP ALG.
Table 47
Network > NAT > Address Mapping: Edit
LABEL
DESCRIPTION
Type
Choose the port mapping type from one of the following.
One-to-One
: One-to-One mode maps one local IP address to one global IP address. Note
that port numbers do not change for One-to-one NAT mapping type.
Many-to-One
: Many-to-One mode maps multiple local IP addresses to one global IP
address. This is equivalent to SUA (i.e., PAT, port address translation), ZyXEL's Single User
Account feature that previous ZyXEL routers supported only.
Many-to-Many Overload
: Many-to-Many Overload mode maps multiple local IP
addresses to shared global IP addresses.
Many-to-Many No Overload
: Many-to-Many No Overload mode maps each local IP
address to unique global IP addresses.
Server
: This type allows you to specify inside servers of different services behind the NAT
to be accessible to the outside world.
Local Start IP
Address
This is the starting local IP address (ILA). Local IP addresses are
N/A
for
Server
port
mapping.
Local End IP
Address
This is the end local IP address (ILA). If your rule is for all local IP addresses, then enter
0.0.0.0 as the
Local Start IP
address and 255.255.255.255 as the
Local End IP
address.
This field is
N/A
for
One-to-One
and
Server
mapping types.
Global Start IP
Address
This is the starting global IP address (IGA). Enter 0.0.0.0 here if you have a dynamic IP
address from your ISP.
Global End IP
Address
This is the ending global IP address (IGA). This field is
N/A
for
One-to-One
,
Many-to-
One
and
Server
mapping types.
Server Mapping
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.
Summary of Contents for AMG1302-T10A
Page 4: ...Contents Overview AMG1302 T10A User s Guide 4 ...
Page 12: ...Table of Contents AMG1302 T10A User s Guide 12 ...
Page 13: ...13 PART I User s Guide ...
Page 14: ...14 ...
Page 20: ...Chapter 1 Introduction AMG1302 T10A User s Guide 20 ...
Page 52: ...Chapter 4 Tutorials AMG1302 T10A User s Guide 52 ...
Page 53: ...53 PART II Technical Reference ...
Page 54: ...54 ...
Page 126: ...Chapter 8 Wireless LAN AMG1302 T10A User s Guide 126 ...
Page 140: ...Chapter 9 Network Address Translation NAT AMG1302 T10A User s Guide 140 ...
Page 158: ...Chapter 11 Filters AMG1302 T10A User s Guide 158 ...
Page 162: ...Chapter 12 Static Route AMG1302 T10A User s Guide 162 ...
Page 166: ...Chapter 13 Port Binding AMG1302 T10A User s Guide 166 ...
Page 176: ...Chapter 15 Quality of Service QoS AMG1302 T10A User s Guide 176 ...
Page 198: ...Chapter 18 Universal Plug and Play UPnP AMG1302 T10A User s Guide 198 ...
Page 202: ...Chapter 19 CWMP AMG1302 T10A User s Guide 202 ...
Page 206: ...Chapter 20 System Settings AMG1302 T10A User s Guide 206 ...
Page 216: ...Chapter 21 Logs AMG1302 T10A User s Guide 216 ...
Page 266: ...Appendix C Pop up Windows JavaScripts and Java Permissions AMG1302 T10A User s Guide 266 ...
Page 280: ...Appendix D Wireless LANs AMG1302 T10A User s Guide 280 ...
Page 290: ...Appendix E IPv6 AMG1302 T10A User s Guide 290 ...
Page 322: ...Appendix G Legal InformationSafety Warnings AMG1302 T10A User s Guide 322 ...