AWS Tools for Windows PowerShell
Command Reference

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Synopsis

Calls the Amazon Elastic Compute Cloud (EC2) CreateDhcpOptions API operation.

Syntax

New-EC2DhcpOption
-DhcpConfiguration <DhcpConfiguration[]>
-TagSpecification <TagSpecification[]>
-Select <String>
-PassThru <SwitchParameter>
-Force <SwitchParameter>
-ClientConfig <AmazonEC2Config>

Description

Creates a custom set of DHCP options. After you create a DHCP option set, you associate it with a VPC. After you associate a DHCP option set with a VPC, all existing and newly launched instances in the VPC use this set of DHCP options. The following are the individual DHCP options you can specify. For more information, see DHCP options sets in the Amazon VPC User Guide.
  • domain-name - If you're using AmazonProvidedDNS in us-east-1, specify ec2.internal. If you're using AmazonProvidedDNS in any other Region, specify region.compute.internal. Otherwise, specify a custom domain name. This value is used to complete unqualified DNS hostnames. Some Linux operating systems accept multiple domain names separated by spaces. However, Windows and other Linux operating systems treat the value as a single domain, which results in unexpected behavior. If your DHCP option set is associated with a VPC that has instances running operating systems that treat the value as a single domain, specify only one domain name.
  • domain-name-servers - The IP addresses of up to four DNS servers, or AmazonProvidedDNS. To specify multiple domain name servers in a single parameter, separate the IP addresses using commas. To have your instances receive custom DNS hostnames as specified in domain-name, you must specify a custom DNS server.
  • ntp-servers - The IP addresses of up to eight Network Time Protocol (NTP) servers (four IPv4 addresses and four IPv6 addresses).
  • netbios-name-servers - The IP addresses of up to four NetBIOS name servers.
  • netbios-node-type - The NetBIOS node type (1, 2, 4, or 8). We recommend that you specify 2. Broadcast and multicast are not supported. For more information about NetBIOS node types, see RFC 2132.
  • ipv6-address-preferred-lease-time - A value (in seconds, minutes, hours, or years) for how frequently a running instance with an IPv6 assigned to it goes through DHCPv6 lease renewal. Acceptable values are between 140 and 2147483647 seconds (approximately 68 years). If no value is entered, the default lease time is 140 seconds. If you use long-term addressing for EC2 instances, you can increase the lease time and avoid frequent lease renewal requests. Lease renewal typically occurs when half of the lease time has elapsed.

Parameters

-ClientConfig <AmazonEC2Config>
Amazon.PowerShell.Cmdlets.EC2.AmazonEC2ClientCmdlet.ClientConfig
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-DhcpConfiguration <DhcpConfiguration[]>
A DHCP configuration option.
Required?True
Position?1
Accept pipeline input?True (ByValue, ByPropertyName)
AliasesDhcpConfigurations
-Force <SwitchParameter>
This parameter overrides confirmation prompts to force the cmdlet to continue its operation. This parameter should always be used with caution.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-PassThru <SwitchParameter>
Changes the cmdlet behavior to return the value passed to the DhcpConfiguration parameter. The -PassThru parameter is deprecated, use -Select '^DhcpConfiguration' instead. This parameter will be removed in a future version.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Select <String>
Use the -Select parameter to control the cmdlet output. The default value is 'DhcpOptions'. Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.EC2.Model.CreateDhcpOptionsResponse). Specifying the name of a property of type Amazon.EC2.Model.CreateDhcpOptionsResponse will result in that property being returned. Specifying -Select '^ParameterName' will result in the cmdlet returning the selected cmdlet parameter value.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-TagSpecification <TagSpecification[]>
The tags to assign to the DHCP option.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesTagSpecifications

Common Credential and Region Parameters

-AccessKey <String>
The AWS access key for the user account. This can be a temporary access key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAK
-Credential <AWSCredentials>
An AWSCredentials object instance containing access and secret key information, and optionally a token for session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-EndpointUrl <String>
The endpoint to make the call against.Note: This parameter is primarily for internal AWS use and is not required/should not be specified for normal usage. The cmdlets normally determine which endpoint to call based on the region specified to the -Region parameter or set as default in the shell (via Set-DefaultAWSRegion). Only specify this parameter if you must direct the call to a specific custom endpoint.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-NetworkCredential <PSCredential>
Used with SAML-based authentication when ProfileName references a SAML role profile. Contains the network credentials to be supplied during authentication with the configured identity provider's endpoint. This parameter is not required if the user's default network identity can or should be used during authentication.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-ProfileLocation <String>
Used to specify the name and location of the ini-format credential file (shared with the AWS CLI and other AWS SDKs)If this optional parameter is omitted this cmdlet will search the encrypted credential file used by the AWS SDK for .NET and AWS Toolkit for Visual Studio first. If the profile is not found then the cmdlet will search in the ini-format credential file at the default location: (user's home directory)\.aws\credentials.If this parameter is specified then this cmdlet will only search the ini-format credential file at the location given.As the current folder can vary in a shell or during script execution it is advised that you use specify a fully qualified path instead of a relative path.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAWSProfilesLocation, ProfilesLocation
-ProfileName <String>
The user-defined name of an AWS credentials or SAML-based role profile containing credential information. The profile is expected to be found in the secure credential file shared with the AWS SDK for .NET and AWS Toolkit for Visual Studio. You can also specify the name of a profile stored in the .ini-format credential file used with the AWS CLI and other AWS SDKs.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesStoredCredentials, AWSProfileName
-Region <Object>
The system name of an AWS region or an AWSRegion instance. This governs the endpoint that will be used when calling service operations. Note that the AWS resources referenced in a call are usually region-specific.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesRegionToCall
-SecretKey <String>
The AWS secret key for the user account. This can be a temporary secret key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesSK, SecretAccessKey
-SessionToken <String>
The session token if the access and secret keys are temporary session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesST

Outputs

Amazon.EC2.Model.DhcpOptions or Amazon.EC2.Model.CreateDhcpOptionsResponse
This cmdlet returns an Amazon.EC2.Model.DhcpOptions object. The service call response (type Amazon.EC2.Model.CreateDhcpOptionsResponse) can also be referenced from properties attached to the cmdlet entry in the $AWSHistory stack.

Examples

Example 1

$options = @( @{Key="domain-name";Values=@("abc.local")}, @{Key="domain-name-servers";Values=@("10.0.0.101","10.0.0.102")})
New-EC2DhcpOption -DhcpConfiguration $options

DhcpConfigurations                    DhcpOptionsId    Tags
------------------                    -------------    ----
{domain-name, domain-name-servers}    dopt-1a2b3c4d    {}
This example creates the specified set of DHCP options. The syntax used by this example requires PowerShell version 3 or later.

Example 2

$option1 = New-Object Amazon.EC2.Model.DhcpConfiguration
$option1.Key = "domain-name"
$option1.Values = "abc.local"

$option2 = New-Object Amazon.EC2.Model.DhcpConfiguration
$option2.Key = "domain-name-servers"
$option2.Values = @("10.0.0.101","10.0.0.102")

New-EC2DhcpOption -DhcpConfiguration @($option1, $option2)

DhcpConfigurations                    DhcpOptionsId    Tags
------------------                    -------------    ----
{domain-name, domain-name-servers}    dopt-2a3b4c5d    {}
With PowerShell version 2, you must use New-Object to create each DHCP option.
User Guide
Service API Reference
Microsoft Windows Guide
VPC User Guide
AWS Tools for PowerShell User Guide

Supported Version

AWS Tools for PowerShell: 2.x.y.z