Arcom ZyWAN, User Manual

Page: 69 / 114

ZyWAN User Manual Configuring the ZyWAN
© 2008 Arcom Issue D
69
The following buttons are available:
Button Explanation
Insert Row# Each of the table rows is numbered. In order to insert a row
in the table, enter a number in the box between 1 and one
greater than the highest number of rows. Then click the
Insert Row# button to insert a blank row. This row needs to
be filled in with all data required.
Delete Row# In order to delete a row in the table, enter a number in the
box between 1 and the highest number of rows. Then click
the
Delete Row# button to delete the row. Once a row is
deleted, it cannot be restored without inserting a row and
entering the data again.
The screen offers the following fields:
Field Explanation
Source Network /
Address Enter the numeric IP address, or range of addresses, which
the ZyWAN translates from the source (internal) network.
Each of the four fields must be a number between 0 and
255. For instance, entering an IP address network of
172.16.11.0 translates all addresses from 172.16.11.1
through 172.16.11.255.
Source Interface Enter the name of the network interface which contains the
source network (above).
Destination Interface Enter the name of the network interface which is the
destination (external) side of the network address
translation. The public IP address on that interface has
already been defined in the
Ethernet or WiFi sections of the
configuration, or it might be assigned by the cellular provider
as part of the data services activation on that network. The
interface names must be entered such as
eth0 or ppp0 . See
Understanding Interfaces on page 23 for a description of the
available interfaces on the ZyWAN.
Time Synchronization
Select the method of synchronizing the internal clock of the ZyWAN. Available options
are:
None , GPS , and NTP .
The GPS option allows the time to be acquired from the GPS receiver (if installed). The
NTP (Network Time Protocol) updates the clock using NTP protocol from a network
server.