## PowerCLI Reference

# Set-VMHostSnmp

## Synopsis

This cmdlet modifies the host SNMP configuration.

Syntax

Set-VMHostSnmp [-HostSnmp] <VmHostSnmp[]> [-Enabled <Boolean>] [-Port <Int32>] [-ReadOnlyCommunity <String[]>] [-WhatIf] [-Confirm] [<CommonParameters>]
Set-VMHostSnmp [-HostSnmp] <VmHostSnmp[]> [-Enabled <Boolean>] [-Port <Int32>] [-ReadOnlyCommunity <String[]>] -TargetCommunity <String> [-TargetPort <Int32>] -TargetHost <String> -AddTarget [-WhatIf] [-Confirm] [<CommonParameters>]
Set-VMHostSnmp [-HostSnmp] <VmHostSnmp[]> [-Enabled <Boolean>] [-Port <Int32>] [-ReadOnlyCommunity <String[]>] [-TargetCommunity <String>] [-TargetPort <Int32>] [-TargetHost <String>] -RemoveTarget [-WhatIf] [-Confirm] [<CommonParameters>]
Set-VMHostSnmp [-HostSnmp] <VmHostSnmp[]> [-Enabled <Boolean>] [-Port <Int32>] [-ReadOnlyCommunity <String[]>] [-RemoveTarget] -TrapTargetToRemove <TrapTarget> [-WhatIf] [-Confirm] [<CommonParameters>]

Related Commands

Online version
Get-VMHostSNMP
Test-VMHostSNMP

Detailed Description

This cmdlet modifies the host SNMP configuration. If specified, adds or removes a trap target (removing can be specified by either TrapTargetToRemove parameter or by any of the following parameters (or combination of them): TargetCommunity, TargetHost, TargetPort). If the user passes $null, an empty array or string to the ReadOnlyCommunities parameter, the old values of this property are erased. This results in a NULL value of this property of the output object.

Parameters

Name | Type | Description | Required? | Pipeline Input | Default Value
--- | --- | --- | --- | --- | ---
HostSnmp | VmHostSnmp[] | Specifies the host Snmp object you want to modify. | true | true (ByValue)
AddTarget | SwitchParameter | Indicates that you want to add a new trap target to the host SNMP configuration. A trap target consists of three elements - Community (mandatory), HostName (mandatory), Port (optional - defaults to 162), specified by the TargetCommunity, TargetHost, and TargetPort parameters. | true | false
Confirm | SwitchParameter | If the value is $true, indicates that the cmdlet asks for confirmation before running. If the value is $false, the cmdlet runs without asking for user confirmation. | false | false
Enabled | Boolean | Indicates that the SNMP feature is enabled on the specified host. | false | false
Port | Int32 | Specifies the port on which the host listens to SNMP messages. | false | false
ReadOnlyCommunity | String[] | Provide a list of communities, identifying who is able to send SNMP requests to that host. If $null, an empty array or string are passed to this parameter, its old values are erased and the output object for the ReadOnlyCommunity property is an empty array. In PowerShell an empty array is defined by @(). | false | false
RemoveTarget | SwitchParameter | Indicates that you want to remove a trap target from the host SNMP configuration. There are two ways to specify a trap target: * Pass the trap target to the TrapTargetToRemove parameter. * Use a combination of the TargetCommunity, TargetHost, and TargetPort parameters to specify a criteria (for example, remove all trap targets that are using port 162). | true | false
TargetCommunity | String | Specifies the community identifier of the trap target. | true | false
TargetHost | String | Specifies the identifier of the target host - a host name or an IP address. | true | false
TargetPort | Int32 | Specifies the port on which the target host listens to SNMP messages. | false | false
TrapTargetToRemove | TrapTarget | Specifies the trap target you want to remove. The trap target can be obtained from the ?TrapTargets? property of the HostSNMP object (an array of TrapTarget objects). | true | false
WhatIf | SwitchParameter | Indicates that the cmdlet is run only to display the changes that would be made and actually no objects are modified. | false | false

Return Type

Zero or more modified VmHostSnmp objects

Notes

You must be connected to the ESX/ESXi host directly.

Examples

-------------- Example 1 --------------

    $vmhostSNMP = Get-VMHostSNMP

    Set-VMHostSNMP $vmhostSNMP -Enabled:$true -ReadOnlyCommunity 'example-community'

Enables SNMP on a virtual machine host.

-------------- Example 2 --------------

    Get-VMHostSnmp | Set-VMHostSnmp -ReadonlyCommunity @()

Sets the virtual machine host SNMP by erasing the old value of the ReadOnlyCommunity parameter.

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