Meraki - Check 4G Status

Requirements
1 - The MAC Address of the device you want to monitor, MAC needs to be formatted as follows => XX:XX:XX:XX:XX:XX

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How to use
1 - Create a new file named "check_meraki_4g_status" on "/usr/local/nagios/libexec" and paste the code below, make sure to verify permissions for the new file:

#!/usr/bin/php

if (isset($argv[1])) {
$macAddress = HexToDecConverter(':', '.', $argv[1]);

$output = shell_exec('/usr/local/bin/snmpwalk -c o/4w-g9d6 -v2c snmp.meraki.com:16100 1.3.6.1.4.1.29671.1.1.4.1.14.' . $macAddress);

switch ($output) {
case (strpos($output, 'Ready') !== FALSE):
print '4G Card Ready';
EXIT(0);
break;
case (strpos($output, 'Active') !== FALSE):
print '4G Card Active';
EXIT(1);
case (strpos($output, 'No Such Object available on this agent at this OID') !== FALSE):
print '4G Card Not Present';
EXIT(2);
break;
case (strpos($output, 'Connecting') !== FALSE):
print '4G Card Connecting';
EXIT(2);
break;
default:
print '4G Card Unknown';
EXIT(3);
}
} else {
print 'MAC Argument Not Provided';
EXIT(2);
}

function HexToDecConverter($explodeDelimiter, $implodeDelimiter, $mac) {
$macOctects = explode($explodeDelimiter, $mac);

foreach ($macOctects as &$octects) {
$octects = hexdec($octects);
}

unset($octects);
return join($implodeDelimiter, $macOctects);
}
?>

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2 - Define a new command on your objects folder:

# 'check_meraki_4g_status' command definition
define command{
command_name check_meraki_4g_status
command_line $USER1$/check_meraki_4g_status $ARG1$
}

3- Define a new service for the host you want to monitor:

# Meraki Controller Device Status
define service {
use generic-service
host_name "Your host name"
service_description Meraki 4G Status
check_command check_meraki_4g_status! "Your Host MAC Address"
}

4 - Check you Nagios Server to see if the plugin is working. I have this working on Core 4.3.1 and XI.