Public/Invoke-SnmpWalk.ps1
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using Namespace System.Collections.Generic using Namespace Lextm.SharpSnmpLib using Namespace Lextm.SharpSnmpLib.Messaging function Invoke-SnmpWalk { Param ( #The IP or hostname of the target device. Defaults to "localhost" if not specified [string]$ComputerName = "localhost", #SNMP community string to use to query the target device. Defaults to "public" if not specified [string]$Community = "public", #SNMP OID(s) to query on the target device. For Invoke-SnmpGet, this can be a single OID (string value) or an array of OIDs (string values) [ObjectIdentifier]$ObjectIdentifier, #UDP Port to use to perform SNMP queries. [int]$Port = 161, #Which SNMP Version to use [VersionCode]$Version = 'V2', #SNMP Walk Mode [WalkMode]$WalkMode = 'WithinSubTree', #Time to wait before expiring SNMP call handles. [int]$Timeout = 3000 ) $vList = [List[Variable]]::New() #Validate the ComputerName $IPAddress = try {[Net.Dns]::GetHostAddresses($ComputerName)[0]} catch {throw} # Create endpoint for SNMP server $svr = New-Object System.Net.IpEndPoint ($IPAddress, $port) # Perform SNMP Get try { $numResults = [Messenger]::Walk( $Version, $svr, $Community, $ObjectIdentifier, $vList, $TimeOut, $walkMode) write-verbose "$numResults SNMP records returned" } catch [TimeoutException] { write-error "SNMP Get on $ComputerName timed-out" Return $null } catch { write-error "SNMP Walk error: $_" Return $null } $res = @() foreach ($var in $vList) { $line = "" | Select OID, Data $line.OID = $var.Id.ToString() $line.Data = $var.Data.ToString() $res += $line } $res } |