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Get-NetIPsecMainModeSA

Updated: August 15, 2012

Applies To: Windows Server 2012

Get-NetIPsecMainModeSA

Returns active main mode security associations (SA) from the target computer.

Syntax

Parameter Set: ByAssociatedNetIPsecQuickModeSA
Get-NetIPsecMainModeSA -AssociatedNetIPsecQuickModeSA <CimInstance> [-AsJob] [-CimSession <CimSession[]> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: ByName
Get-NetIPsecMainModeSA [-Name] <String[]> [-AsJob] [-CimSession <CimSession[]> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]

Parameter Set: GetAll
Get-NetIPsecMainModeSA [-All] [-AsJob] [-CimSession <CimSession[]> ] [-ThrottleLimit <Int32> ] [ <CommonParameters>]




Detailed Description

The Get-NetIPsecMainModeSA cmdlet gets an active main mode security association (SA). This cmdlet is used for policy monitoring.

An SA is generated when main mode negotiation establishes a secure, authenticated channel between two computers. The SA is the information maintained about that secure channel on the local computer so that it can use the information for future network traffic to the remote computer.

An SA is the combination of a negotiated key, security protocol, and SPI, which together define the security used to protect the communication from sender to receiver. Therefore, by looking at the security associations for this computer, which computers have connections with this computer can be determined, which type of data integrity and encryption is being used for that connection, and other information. This information can be helpful when testing IPsec policies and troubleshooting access issues.

There are four mandatory parameters that negotiated as part of the main mode SA:
-- The computer authentication method: Kerberos v5, certificate, or pre-shared key (PSK) authentication, provided by the NetIPsecPhase1AuthSet object.
-- The encryption algorithm, provided by the NetIPsecMainModeCryptoSet object.
-- The hashing algorithm, provided by the NetIPsecMainModeCryptoSet object.
-- The Diffie-Hellman (DH) key exchange group to be used for the base keying material, provided by theNetIPsecMainModeCryptoSet object.

Parameters

-All

Indicates that all of the main mode security associations within the specified policy store are retrieved.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-AsJob

Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete. The cmdlet immediately returns an object that represents the job and then displays the command prompt. You can continue to work in the session while the job completes. To manage the job, use the *-Job cmdlets. To get the job results, use the Receive-Job cmdlet. For more information about Windows PowerShell® background jobs, see about_Jobs.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-AssociatedNetIPsecQuickModeSA<CimInstance>

Gets the quick mode security associations associated with the given main mode security association.


Aliases

none

Required?

true

Position?

named

Default Value

none

Accept Pipeline Input?

True (ByValue)

Accept Wildcard Characters?

false

-CimSession<CimSession[]>

Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.


Aliases

Session

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-Name<String[]>

Specifies that only matching main mode rules of the indicated name are retrieved. Wildcard characters are accepted.
This parameter acts just like a file name, in that only one rule with a given name may exist in a policy store at a time. During group policy processing and policy merge, rules that have the same name but come from multiple stores being merged, will overwrite one another so that only one exists. This overwriting behavior is desirable if the rules serve the same purpose. For instance, all of the firewall rules have specific names, so if an administrator can copy these rules to a GPO, and the rules will override the local versions on a local computer. Since GPOs can have precedence, if an administrator that gives a rule with a different or more specific rule the same name in a higher-precedence GPO, then it overrides other rules that exist.
The default value is a randomly assigned value.
When the defaults for main mode encryption are overridden, specify the customized parameters and set this parameter value, making this parameter the new default setting for encryption.


Aliases

ID

Required?

true

Position?

1

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

-ThrottleLimit<Int32>

Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.


Aliases

none

Required?

false

Position?

named

Default Value

none

Accept Pipeline Input?

false

Accept Wildcard Characters?

false

<CommonParameters>

This cmdlet supports the common parameters: -Verbose, -Debug, -ErrorAction, -ErrorVariable, -OutBuffer, and -OutVariable. For more information, see    about_CommonParameters.

Inputs

The input type is the type of the objects that you can pipe to the cmdlet.

  • Microsoft.Management.Infrastructure.CimInstance#root\StandardCimv2\NetIPsecQuickModeSA

    The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.


Outputs

The output type is the type of the objects that the cmdlet emits.

  • Microsoft.Management.Infrastructure.CimInstanceroot\StandardCimv2\NetIPsecMainModeSA[]

    The Microsoft.Management.Infrastructure.CimInstance object is a wrapper class that displays Windows Management Instrumentation (WMI) objects. The path after the pound sign (#) provides the namespace and class name for the underlying WMI object.


Examples

EXAMPLE 1

This example returns all of the active main mode cryptographic sets on the local computer.


PS C:\> Get-NetIPsecMainModeSA –PolicyStore ActiveStore

Example 2

This example removes all of the active quick mode cryptographic sets associated with the specified main mode security association on a remote computer.


 

PS C:\> $computer1 = "RemoteMachineName"

 

PS C:\> Get-NetIPsecMainModeSA –Name "196511" –CimSession $Computer1 | Remove-NetIPsecQuickModeSA –CimSession $computer1

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