Setting SNMP configuration in VMWare using Powershell
I have a ton of respect for the VMWare guys and the incredibly useful set of cmdlets they provide (FOR FREE) found HERE, but man have I been banging my head against the wall trying to simply set the SNMP configuration on my ESX hosts.
To help ease the pain for the REST of the world here are some thoughts/gotchas.
- You must have the object return from Get-VMHostSNMP to use Set-VMHostSNMP or Test-VMHostSNMP. Simply providing the name will not work
- You cannot use the name with Get-VMHostSNMP. It appears you must connect to the actual ESX host (using connect-viserver) and then run Get-VMHostSNMP
- Once you “get” the VMHostSNMP object you can reuse without worrying about the connect-viserver command.
- You need to add a ReadOnlyCommunity to each host
- You need to Enable traps with the -enable:$true parameter
- TargetCommunity, TargetPort, TargetHost parameters require that you also pass -addtarget
- You need to enable SNMP on the ESX firewall
You may find the script below useful for getting a VMHostSNMP object for each ESXHost on your Virtual Center
Using the script below you can then do things like
$SNMPHostObjects = .\Get-SNMPHost.ps1 $VirtualCenter
To Add a Community
$SNMPHostObjects | %{ Set-VMHostSnmp -HostSnmp $_ -ReadOnlyCommunity “YourCommunity”}
To Enable
$SNMPHostObjects | %{ Set-VMHostSnmp -HostSnmp $_ -Enabled:$true }
To Add a Target
$SNMPHostObjects | %{ Set-VMHostSnmp -HostSnmp $_ -TargetHost “1.1.1.1″ -TargetCommunity “YourCommunity” -AddTarget }
To Test
$SNMPHostObjects | %{ Test-VMHostSnmp $_ }
To Remove a Target
$SNMPHostObjects | %{ Set-VMHostSnmp -HostSnmp $_ -TargetHost “1.1.1.1″ -removeTarget}
tshell :: May.29.2009 :: All, Powershell, VMWare :: No Comments »
