NPM autodiscovery with IPAM.

shaun_9999

The idea is in the title.  Why can't you autodiscover with IPAM?  It just seems such a simple and effective idea.  You wouldn't even need to do any scanning.  IPAM will do it for you and then you import the nodes.

jm_sysadmin

It occurred to me as well, the code below is the main logic from a powershell script I run.  Basically it grabs the IPs in IPAM and not in Orion NPM as a node.  In my prod script I also look at the subnet info to output to different places. If its in the first and last few IPs of a range, then I know its a network managed device, if the IP is in a DHCP assigned, its likely a client or still in the build process and I ignore it. I also know which subnets are designated for what in the data center so I can sort them into the right discovery jobs on Orion. A few go to text files so I can review it first, and a few get added directly via the API to a discovery job.

Add-PSSnapin SwisSnapin

$swis = Connect-Swis "L1PERDWNPM01.ChildrensRoot.net" -UserName AlertAdmin -Password "Alert"

$ActiveIPList = Get-SwisData -SwisConnection $swis -Query "SELECT IPAddress, SubnetAddress FROM IPAM.IPInfo Where IPStatusText != 'Available' Order by SubnetAddress, IPAddress"

$ManagedIPs = Get-SwisData -SwisConnection $swis -Query "SELECT IPAddress FROM Orion.NodeIPAddresses"

$ActiveIPList | Foreach {

  If ($ManagedIPs -notcontains $_.IPaddress)

  {

  Out-File -FilePath '.\IPAMScanOutput.csv' -InputObject $_.IPaddress -Append

  }

}