DPS Telecom NetGuardian 832A User manual

DPS Telecom “Techno Knowledge” Paper
“Your Partners in Network Alarm Management”
Problem: Unable to poll a NetGuardian over serial using another NetGuardian
Platform: NetGuardian 832A
This techno knowledge paper can help you if:
• You are attempting to poll a NetGuardian over serial using another NetGuardian
Quick Reference Chart
(for more details, review the troubleshooting checklist, starting on page 2 of this guide)
START HERE
Set up NG’s in
T/Mon
Set up Polling
port for both
NG’s in T/Mon
Verify Polling
Activity of both
NG’s
Set up NG’s in
NGEdit
Do you have sites that you must monitor outside of your LAN?
Extending LAN to the site or running long serial lines can be
very expensive projects. Fortunately, there's a much better way
that involves only short serial connections between sites.
Using the serial ports on your NetGuardian, you can actually
monitor a second NetGuardian deployed outside of your LAN
via Serial. This eliminates long, expensive cable runs.

Troubleshooting Checklist
 Set up a Polling Port for Both NetGuardians in T/Mon.
NOTE: In the example below, the same polling port has been used for both
NetGuardians. However, if you are setting more than 2 NetGuardians over serial
connection, it is recommended that the NetGuardians have their own polling port
to ensure timely polling.
o From the Master Menu, Select “Parameters”
o Select “Remote Ports”
o Press ‘E’ for ‘Edit’
o Press ‘Tab’ to select DCP(F) interrogator
o Input the settings shown below:
o Press F6 to reach the Data Connection screen.
o Press F1 to reach the Ethernet TCP Port Definition screen.
o Enter a TCP port (do not use 2002). These settings must match your NetGuardian
settings.
 In this example (shown on the next page) the polling type will be UDP
using port 2001.
o Press enter so that your cursor is on the beginning of the next line and hit F8 to
save.

 Set up NetGuardians in T/Mon.
o Press ‘ESC’ several times until you return to the Master Menu.
o Select ‘LAN Based remotes’
o Press ‘F’ for Find
o Type in the site number of your LAN NetGuardian and press “Enter”
o Configure the NetGuardian as appropriate, including an IP address and TCP Port
 The first NetGuardian below is the LAN NGD, on the next page you will
find the setup instructions for the Serial NGD.
LAN NetGuardian

o Press ‘F’ for Find
o Type in the site number for your Serial NetGuardian and press ‘Enter’
o Configure the NetGuardian as appropriate, using the same IP address of the first
unit BUT a different TCP Port. The TCP Port you use for the serial NetGuardian
must match the proxy port of the LAN NetGuardian that the Serial NetGuardian is
connected to. This means that if your proxy base for the LAN NetGuardian is
3001 then its serial port #1 is considered 3001, serial port #2 is considered 3002
and so on until the last data port #8 equals 3008. This is because you are
tunneling through the first LAN-based NetGaurdian and out its proxy port (TCP
Port 3001 in this example).
Serial NetGuardian
 Set up NetGuardians in NGEdit.
NOTE: Although this step details NetGuardian setup using NGEdit, you may also
use a similar process in the Web browser interface.
o In NGEdit, Unit ID is the same as Site Number in T/Mon. Both Unit ID & Site
Numbers must match.
o The IP addresses for both NetGuardians in NGEdit must match those for LAN &
Serial in T/Mon
o TCP Port in T/Mon is the same as DCP Port in NGEdit.

NGEdit LAN Configuration (Address 77)
NGEdit LAN Configuration (Address 77)

NGEdit Serial Configuration (Address 78)
NGEdit Serial Configuration (Address 78)

Your NetGuardians should now be set up, but DPS recommends the following quick test to
verify that they are being polled.
 Verify Correct Polling of Both NetGuardians.
o Initialize T/Mon
o Put T/Mon in Monitor mode
o Press Shift + F6 to go to the Site Statistics screen
o If NetGuardians are being polled properly, the Poll count for both NetGuardians
will be increasing
The poll count for both NetGuardians should be increasing in the Good column.
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If you continue to have issues connecting a NetGuardian over a serial connection using another NetGuardian on
LAN, please contact DPS Telecom Tech Support @ 1-800-622-3314.