Bulk add the OMS Log Analytics Network Monitoring rules to all machines in a domain

Add-OMSNetworkMonitoringFirewallRules.ps1

Function OMSICMPFWRules 
{
    netsh advfirewall firewall add rule name="NPMDICMPV4Echo" protocol="icmpv4:8,any" dir=in action=allow
    netsh advfirewall firewall add rule name="NPMDICMPV6Echo" protocol="icmpv6:128,any" dir=in action=allow 
    netsh advfirewall firewall add rule name="NPMDICMPV4DestinationUnreachable" protocol="icmpv4:3,any" dir=in action=allow 
    netsh advfirewall firewall add rule name="NPMDICMPV6DestinationUnreachable" protocol="icmpv6:1,any" dir=in action=allow 
    netsh advfirewall firewall add rule name="NPMDICMPV4TimeExceeded" protocol="icmpv4:11,any" dir=in action=allow 
    netsh advfirewall firewall add rule name="NPMDICMPV6TimeExceeded" protocol="icmpv6:3,any" dir=in action=allow
}

$Exclude  = "server1.domain.local|server2.domain.local|server2.domain.local" # Server names to exlude.
$Computers = Get-ADComputer -Filter 'ObjectClass -eq "Computer"' | Where-Object {$_.DNSHostName -NotMatch $Exclude} | Select-Object -Expand DNSHostName # Get a list of servers from Active Directory.

foreach ($Computer in $Computers)
{
    try 
    {
        Write-Output "$(Get-Date) $Computer Adding Rules"
        Invoke-Command -ComputerName $Computer -ScriptBlock ${function:OMSICMPFWRules}
    }
    catch 
    {
        Write-Output "$(Get-Date) $Computer Error Adding Rules"
    }
}