BlueCat Address Manager: Creating and Editing Host/IPv6 Address Reservations

Favorite Article   

BlueCat Address Manager: Creating and Editing Host/IPv6 Address Reservations

 

DHCPv6 Automatic Addressing and Dynamic DNS

University Networking & Infrastructure (UNI) utilizes the Dynamic Host Configuration Protocol (DHCP) to manage the IP addresses across campus. All computers on campus must be registered through our Device Registration Portal for IPv4 before their IPv6 addresses will be allowed to resolve DNS. After connecting your computer to the network for the first time, or after replacing your Ethernet card, open a web browser. You should be automatically forwarded to the registration page. If you are not, then point your browser to https://drp.lsu.edu.
 

If the device is registered in DRP, received a valid IPv4 address, and is set up for automatic DHCP on IPv6, the device will automatically receive an IPv6 address in a dynamic DHCP range and will automatically have a dynamic host name in DNS set to the hostname + ip6.lsu.edu or duid + ip6.lsu.edu. The device will receive the same address for the duration of the 24 hour DHCP lease. After the DHCP lease runs out the device may get a different IPv6 address but should still dynamically register the same DNS name. 

Campus-wide:   All machines on the LSU campus will be configured via DHCP.  The servers, printers, etc. that need static addresses will still be configured via DHCP, but will have a Reserved DHCP allocation type in the BlueCat Address Manager that ensures the issuance of the same IP for every renewal.  Exceptions to this rule are allowed for devices with no DHCP client available and will be handled case by case.

 

To create or edit a host or IPv6 Address reservation in BAM (for items such as PCs, Printers, etc.), follow the steps below:

 

Creating IPv6 Addresses (manage and control IPv6 Addresses)

Unlike addresses in the IPv4 space, IPv6 addresses do not automatically appear when you create an IPv6 network. By default, networks contain a single Network Router Anycast address. You cannot change the Network Router Anycast address or its properties.
 

To add an IPv6 address:
1. Click New and select IPv6 Address. The Add IPv6 Interface ID page opens.
2. Under Interface ID Information, select either MAC Address or Interface ID.
  * If you select the MAC Address field, type the MAC address in the format nnnnnnnnnnnn, nn-nnnn-nn-nn-nn, or nn:nn:nn:nn:nn:nn where nn is a hexadecimal value from 00 to FF. Address Manager automatically formats the MAC address using Extended Unique Identifier (EUI) format by inserting the hex characters FFFE in the middle of the MAC address and inverting the seventh bit in the address. For example, if you enter a MAC address of 11:22:33:44:55:66 as the basis for the interface ID, and click Add, Address Manager changes it into 1322:33FF:FE44:5566.
  * If you select Interface ID, you must enter the interface portion of the address.
3. Under Address Information, set a name and location for the address:
  * Name—type a name for the address.
  * Location—(Optional) select a location from the drop-down menu on which the IP object that you are adding or editing will be based. The most often used location objects will be shown at the top of the list.
  * Inherited Location—displays the location annotation that is inherited from the parent object. If you do not specify a location from the drop-down menu, this default location will be used for the current object and its child objects.
4. Click Add.


Assigning IPv6 Reservations (adding IPv6 addresses/hosts)

You must assign an IPv6 address before you can add a DNS host name or reserve it. Assignments can be Static, to apply DNS information to it or DHCP Reserved, to flag it for future assignment.

When assigning a static address, you can give the address a name, assign it to a DNS view, and specify its forward and reverse DNS records. When assigning a DHCP reserved address, you can give the address a name. The name you assign to the address is used for reference within Address Manager only; it is not the host name for the address.

In order to provide better efficiency and flexibility on managing the reverse space, Address Manager supports creating PTR records for unmanaged external hosts through standalone PTR management. You can link IP addresses with existing unmanaged external host records to generate PTR records, or create new unmanaged external host as part of the IPv6 address assigning process.

To assign an IPv6 address:
1. Select the check boxes for one or more addresses.
2. Click Action and select Assign. The Assign IPv6 Addresses page opens.
3. Under Select Action, set the following options:
  * Type of Action—select Static or DHCP Reserved from the Type of Action drop-down menu.
4. Under General IP Options, complete the following:
  * IP Address Name—enter or modify the name for the IPv6 address.
  * Client DUID—enter the DHCP Unique Identifier.
  * MAC Address—if not pre-populated, type the MAC address in the format nnnnnnnnnnnn, nn-nnnn-nn-nn-nn, or nn:nn:nn:nn:nn:nn where nn is a hexadecimal value from 00 to FF.
5. Under Add to Views, select the view in which you want the AAAA record to be created (Everyone_else).
6. Under DNS Records, set the following parameters:
  * Same As Zone—when selected, the host record receives the same name as the zone.
  * Create Reverse Record—when selected, a reverse record is maintained for this host assignment.
  * Host—enter the DNS host name. If you specify a host name in a zone that does not yet exist, Address Manager prompts you to confirm that you want to create the zone.
7.Click Assign Address.


Updating IPv6 Reservations (managing hosts & corresponding resource records)


  Modify an IPv6 address assignment to change it to a different address type.
 
To edit an IPv6 address assignment:
1. Locate a static or a DHCP reserved IPv6 address.
2. Click the static or a DHCP reserved IPv6 address. The Details tab for the address opens.
3. Click the address name menu and select Edit. The Edit IPv6 Address page opens.
4. Under Address, click the address to view its details.
5. Under General Settings, set the following options:
  * IP Address Name—enter or modify the name for the IPv6 address.
  * Client DUID—enter the DHCP Unique Identifier.
  * MAC Address—if not pre-populated, type the MAC address in the format nnnnnnnnnnnn, nn-nnnn-nn-nn-nn, or nn:nn:nn:nn:nn:nn where nn is a hexadecimal value from 00 to FF.
6. Click Yes.


Clearing IPv6 Addresses Assignment


  Remove the IPv6 address assignment without deleting the address.
  Clear an assignment if you do not want the address assigned but do not want to delete it.

To clear an IPv6 address assignment:
1. Locate a static () or a DHCP reserved () IPv6 address.
2. Click the static () or a DHCP reserved () IPv6 address. The Details tab for the address opens.
3. Click the address name menu and select Clear. The Clear IPv6 Address Assignment page opens.
4. Click Yes.
 

Moving IPv6 Address Assignments

  If the interface’s MAC address has changed, you can move the assignment to a different MAC address or interface ID. You can move the IPv6 address assignment within the same network or between different IPv6 networks.
 
To move an IPv6 address:
1. Select the IPv6 address you want to move. The Details tab for the address opens.
2. Click the address name menu and select Move. The Move Assignments Within Network page opens.
3. Under Destination to move to, set the new address location:
  * Destination Network—specify the destination IPv6 network to which the IPv6 address will be reassigned. By default, the current parent network of the IPv6 address will be populated.
  * MAC Address—select this option and enter the new MAC address. Use this option when you know the new MAC address for the assignment.
  * Interface ID—select this option and enter the new interface ID. Use this option when you know the new interface ID for the assignment.
4. Click Yes
 
19667
11/6/2018 10:10:08 AM