19216811.liveChapter 11 Network Address Translation (NAT)
AMG1302/AMG1202-TSeries User’s Guide
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11.4
The DMZ Screen
If you need to allow packets from a specific WAN connection to your local network, NAT supports a
default server IP address. A default server receives packets from the specified WAN connection and
the ports that are not specified in the
NAT Port Forwarding Setup
screen.
Figure 70
Network Setting > NAT > DMZ
The following table describes the fields in this screen.
11.5
NAT Technical Reference
This chapter contains more information regarding NAT.
11.5.1
NAT Definitions
Inside/outside denotes where a host is located relative to the AMG1302/AMG1202-TSeries, for
example, the computers of your subscribers are the inside hosts, while the web servers on the
Internet are the outside hosts.
Global/local denotes the IP address of a host in a packet as the packet traverses a router, for
example, the local address refers to the IP address of a host when the packet is in the local
network, while the global address refers to the IP address of the host when the same packet is
traveling in the WAN side.
Note that inside/outside refers to the location of a host, while global/local refers to the IP address
of a host used in a packet. Thus, an inside local address (ILA) is the IP address of an inside host in
Table 51
Network Setting > NAT > DMZ
LABEL
DESCRIPTION
WAN Interface
Select a WAN PVC connection (
PVC0
~
PVC7
) from which you want to forward the traffic
to the specified default server.
Default Server
Address
Enter the IP address of the default server which receives packets from ports that are not
specified in the
NAT > Port Forwarding
screen.
Note: If you do not assign a
Default Server Address
, the AMG1302/AMG1202-TSeries
discards all packets received for ports that are not specified in the
NAT Port
Forwarding
screen.
Apply
Click
Apply
to save your changes.
Cancel
Click
Cancel
to restore your previously saved settings.