Garmin HM210DP/DI - Manual (Page 61)

Configuring NAT
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They provide a measure of security for your LAN by enabling you to
assign private IP addresses and then have these and the source
port numbers swapped out before your computers access the
Internet.
The type of NAT function described above is called network address port
translation (NAPT). You can use other types, called flavors, of NAT for
other purposes; for example, providing outside access to your LAN or
translating multiple private addresses to multiple public addresses. Section
0 “Adding NAT rules” gives a description of each of the flavors.
8.2 Viewing NAT Configuration
To view your NAT settings, select Services > NAT. The NAT
Configuration page appears:
The NAT Configuration page contains the following elements:
The “NAT Options” drop-down list, which provides access to the
NAT Configuration page and Global Information table (shown by