Cambium Networks PMP 450 AP, Configuration Manual

Page: 291 / 649

Chapter 1: Configuration Zero Touch Configuration Using DHCP Option
66
Page
1-263
Creating a Golden config file
The easiest way to create the golden config file is to configure an SM, export its configuration and edit
it. To export the configuration file from the GUI of the SM, go to “Configuration > Unit Settings” tab, go
to the “Download Configuration File” section and click on the “<mac>.cfg” link. This will give you a text
file in JSON format. You can edit this file in a text editor but it’s easier to use a JSON editor like
https://www.jsoneditoronline.org/ .
Strip down the config file to remove sections and entries that don’t care about, and keep only the items
that require changes. If there are many required changes, it can easily get confusing. To identify the
exact items changes, first reset the SM to factory default, export the config file, make the necessary
changes, export a second config file, then use a tool like WinMerge (
http://winmerge.org/ ) to identify
the differences.
The config file contains the following informational entries at the top level.
“cfgUtcTimestamp”: “cfgUtcTimestamp”,
“swVersion”: “CANOPY 15.1 SM-AES”,
“cfgFileString”: “Canopy configuration file”,
“srcMacAddress”: “0a-00-3e-a2-c2-74”,
“deviceType”: “5.4/5.7GHz MIMO OFDM - Subscriber Module”,
“cfgFileVersion”: “1.0”
The “cfgUtcTimestamp”, “swVersion”, “srcMacAddress” and “deviceType” lines can be deleted. Do not
delete the “cfgFileString” and “cfgFileVersion” entries.
Next, create an object named “configFileParameters” at the top level. Under that, add a parameter
called “rebootIfRequired” and set it to true. This tells the SM to reboot automatically if a reboot is
needed to apply the new configuration.
A sample configuration file that has been edited for use via DHCP option 66 is given below.
{
“userParameters”: {
“smNetworkConfig”: {
“networkAccess”: 1
},
“location”: {
“siteName”: “Test site”
},
“smRadioConfig”: {
“frequencyScanList”: [
5475000,
5480000
],
“colorCodeList”: [