In part 1, we demonstrated how to update the proxy agent for a group of managed SNMP-enabled devices. The difficulty in using the solution presented is part 1 is in using the get-agent cmdlet to retrieve the potential proxy agent to pass to set-proxyagent, which only returns agents; no management servers are presented. Using the get-managementserver cmdlet in it's place results in a failure because it does not return the right object to pass to set-proxyagent.

If I want to use a management server as the proxy for multiple network devices, the script below will allow you to submit a wildcard filter based on device IP address to update the proxy agent for all SNMP-enabled devices matching the filter, and assign a managment server as the proxy agent.

Thanks to Marco Shaw for a critical assist in working out the code to allow passing wildcard for the -deviceName parameter.

INSTRUCTIONS FOR USE

SYNTAX

The script accepts the following 3 required parameters. Run with no parameters to view syntax help.

-rootMS: FQDN of the root management server for the target management group.

Ex: 'RootManagementServer.fqdn.local'

-proxyAgent: Management Server that will serve as the proxy agent

Ex: ‘ms1.contoso.com'

-deviceName: IP address or IP wildcard range.

Ex: ‘192.168.1*’

SAMPLE SCRIPT

Here is the sample script. You should be able to cut-and-paste this one with no worries about line wrap.

#-----------Begin Sample Script--------------

param($rootMS,$proxyAgent,$deviceName)

#Echo syntax if -rootMS parameter is NULL
     if ($rootMS -eq $null) {

        Write-Host ""
        Write-Host "-rootMS: FQDN of the root management server for the target management group.";
        Write-Host "Ex: RootManagementServer.fqdn.local";
        Write-Host ""
        Write-Host "-proxyAgent: Agent-managed computer that will serve as the proxy agent";
        Write-Host "Ex: ‘dc.contoso.com";
        Write-Host ""
        Write-Host "-deviceName: IP address or IP wildcard range.”;
        Write-Host "Ex: ‘192.168.1*’”;
        Write-Host ""
 exit;
     }

#connect to mgmt group
$ServerName=$rootMS
add-pssnapin  Microsoft.EnterpriseManagement.OperationsManager.Client ;
set-location  OperationsManagerMonitoring:: ;
new-managementGroupConnection -ConnectionString:$serverName;
set-location $ServerName;

$mg=new-managementgroupconnection $rootMS
$mgname=$mg.managementgroup
$admin=$mgname.getadministration()

#Retrieve management server that will serve as proxy agent
$crit=new-object microsoft.enterprisemanagement.administration.managementservercriteria("Name = '$proxyAgent'")
$server=$admin.getmanagementservers($crit)[0]

#Retrieve all our monitored network devices
$netdevices=$admin.getallremotelymanageddevices()

#Sets the proxy of all network devices to the specified proxy server
$coll= new-object "system.collections.generic.list``1[[Microsoft.EnterpriseManagement.Administration.RemotelyManagedDevice, Microsoft.EnterpriseManagement.OperationsManager, Version=6.0.4900.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]"

for($i=0;$i -lt $netdevices.count;$i++){
  if($netdevices[$i].ipaddress -like "$deviceName"){$coll.add($netdevices[$i])}
}

$new_netdevices= new-object "System.Collections.ObjectModel.ReadOnlyCollection``1[[Microsoft.EnterpriseManagement.Administration.RemotelyManagedDevice, Microsoft.EnterpriseManagement.OperationsManager, Version=6.0.4900.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]" (,$coll)

$admin.setproxyagent($new_netdevices,$server)

Conclusion