ADTRAN Express L128FP, User Manual

Page: 78 / 161

Chapter 3. Terminal Menu Operation and Structure
3-44 Express L128FP User Manual 61202070L4-20
IP/NAT
Write security: 3; Read security: 5
The Express L128FP can perform Network Address Translation. This
feature is most widely used when connecting to the Internet. The
Ethernet network can consist of private network numbers. When this
profile is connected, all IP addresses on the Ethernet side are translat-
ed into the one real IP address negotiated with the PPP peer (ISP).
Multiple stations on the Ethernet side can access the Internet simulta-
neously. See the section IP/NAT on page 3-15 for more global options.
Setting this option to
On
will cause the Express L128FP to perform
NAT. In the Off (def) position, the unit will route across the connec-
tion normally.
IP/Route
The IP parameters are configured in this menu. Usually the Express
L128FP will automatically discover the PPP peer’s networks using PPP IPCP
and/or RIP.
Route/IP/Net
Write security: 3; Read security: 5
The PPP peer’s IP address or network can be set here, if known. Leav-
ing this at 0.0.0.0 means that the Express L128FP will determine the
PPP peer’s IP and network using the PPP IPCP.
Route/Netmask
Write security: 3; Read security: 5
This network mask is applied to the IP/NET address for determining
the PPP peer’s network. If left as 0.0.0.0, a standard network mask is
used.
Route/Force IP
Write security: 3; Read security: 5
When set to Yes , the Express L128FP will force the PPP peer to use the
IP address in the
IP/Net
for this profile as its WAN IP address. Nor-
mally this is set in the No (def) position.