Configuring a Windows-Based DHCP Server

This topic covers the following tasks:

• Configuring DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  Response (Option 43)
• Configuring DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  Vendor Class Request (Option 60)

DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  servers are mostly used to configure clients with essential networking information like IP address, default gateway Gateway is a network node that allows traffic to flow in and out of the network., network mask, DNS Domain Name System. A DNS server functions as a phone book for the intranet and Internet users. It converts human-readable computer host names into IP addresses and IP addresses into host names. It stores several records for a domain name such as an address 'A' record, name server (NS), and mail exchanger (MX) records. The Address 'A' record is the most important record that is stored in a DNS server, because it provides the required IP address for a network peripheral or element. server, and more. Most DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  servers can send optional information, including the Vendor-Specific Information (VSI), also called as Option 43. When a client or an AP requests for Option 43 (VSI), the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server responds with the IP address of the managed device configured by the administrator in the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  pool.

When a factory-default AP boots up and requests an IP address, the AP includes a Vendor Class Identifier (VCI) string by default in its DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  request, also called Option 60. VCI is a text string that uniquely identifies a type of vendor device. Based on the VCI string, the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server responds with the correct VSI included in Option 43.

Configuring DHCP Response (Option 43)

Configuring DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  response (Option 43) returns the IP address of the managed device to the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  client. This information allows Aruba APs to auto-discover the Mobility Conductor and obtain their configuration.

Configuring Option 43 Using the Windows DHCP Server

The following procedure configures DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  response (Option 43) using the Windows DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server:

1. On the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server, navigate to Start > Administration Tools > DHCP to open the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server administration tool.
2. Search for your server, then right-click on the scope you want to configure under the server name.
3. Click on the Scope Options entry and select Configure Options.
4. In the Scope Options window, scroll down and select 043 Vendor Specific Info.
5. In the Data Entry field, click anywhere in the area under the ASCII American Standard Code for Information Interchange. An ASCII code is a numerical representation of a character or an action. heading and enter ASCII American Standard Code for Information Interchange. An ASCII code is a numerical representation of a character or an action. Loopback address of the managed device.
6. Click OK to save the configuration.

Option 43 is configured for this DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  scope.

Configuring DHCP Vendor Class Request (Option 60)

When an AP sends a DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  request, the AP identifies itself to the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server by setting its VCI to ArubaAP in the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  request. Configuring DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  vendor class (request Option 60) consists of the following two tasks:

1. Creating a new vendor class—Configure a Vendor Class Identifier (VCI) on the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server for each AP. This VCI must match the VCI (ArubaAP) defined in DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  request Option 60 on the AP.

2. Creating a new policy—Create a new policy and assign server values in Option 43 for the newly-created vendor class.

Creating a New Vendor Class

The following procedure configures a new vendor class on the Windows-based DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server:

1. On the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server, navigate to Start > Administration Tools > DHCP to open the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server administration tool.
2. Find your server and right-click on IPv4.
3. Click Define Vendor Classes.

   The New Class window is displayed.

4. In the New Class window, enter the following information:
   • Display name—ArubaAP
   • Description—VCI: ArubaAP
5. In the ASCII American Standard Code for Information Interchange. An ASCII code is a numerical representation of a character or an action. column, enter ArubaAP as the VCI.
6. Click OK.

   The new vendor class (ArubaAP) is displayed in the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  Vendor Classes window.

Creating a New Policy

The following procedure configures a new policy on the Windows-based DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server:

1. On the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server, navigate to Start > Administration Tools > DHCP to open the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server administration tool.
2. Find your server and right-click on Policies.
3. Click New Policy.

   The DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  Policy Configuration Wizard window is displayed.

4. Under General tab, enter the following information:
   • Policy Name—ArubaAP
   • Description—Aruba Access Point to controller
5. Under Conditions tab, perform the following steps:
   • Vendor Class—Select the vendor class from the Criteria drop-down list.
   • Equals—Select equals from the Operator drop-down list.
   • Value —Select the newly-created vendor class (ArubaAP) from the drop-down list, and click Add.

6. Under Options tab, perform the following steps:

   • Vendor class—Select DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  Standard Options from the drop-down list.
   • Available Options—Select 043 Vendor Specific Info check box from the column.
   • Data Entry —Click anywhere in the area under the ASCII American Standard Code for Information Interchange. An ASCII code is a numerical representation of a character or an action. column and enter the IP address of your managed device that the AP should connect to.

   The new policy is applied and the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server values are assigned in Option 43 for the newly-created vendor class (ArubaAP).

   Important Points to Note

   • Repeat the above procedure to create more policies for various device types that require Option 43 or different options.
   • If you have multiple Windows-based DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  servers IP addresses for your APs, you must configure DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  vendor class on each of them.
   • You can create new policies on a per scope level, or for all the IPv4 scopes based on your deployment.
7. Click Apply, and then click OK.

Configuring Option 52 Using the Windows DHCP Server

APs can discover a managed device in an IPv6 deployment using DHCPv6 Option 52. The AP as a DHCPv6 client requests for Option 52 in a parameter request list of Solicit and Request DHCPv6 packets. If the DHCPv6 server has configured this option, the DHCPv6 server will return this option to the AP in the Advertise and Reply packet. The AP will then parse managed device address from Option 52 and try to connect to it.

The following procedure configures Option 52 using the Windows DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server:

1. On the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server, navigate to Start > Administration Tools > DHCP to open the DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  server administration tool.
2. Search for your server, then right-click on the scope you want to configure under the server name. Click the Scope Options entry and select Configure Options.
3. In the Scope Options window, scroll down and select 052 capwap-ac-v6.
4. In the Data Entry field, click anywhere in the area under the ASCII American Standard Code for Information Interchange. An ASCII code is a numerical representation of a character or an action. heading and enter ASCII American Standard Code for Information Interchange. An ASCII code is a numerical representation of a character or an action.: Conductor Controller IP address of the conductor controller.
5. Click OK to save the configuration.

Option 52 is configured for this DHCP Dynamic Host Configuration Protocol. A network protocol that enables a server to automatically assign an IP address to an IP-enabled device from a defined range of numbers configured for a given network.  scope.