DHCPv6 Prefix Delegation Using AAA This feature enables the Dynamic Host Configuration Protocol for IPv6 (DHCPv6) server to use AAA to obtain the prefix assignment through an AAA/RADIUS authorization request. • Finding Feature Information, page 1 • Information About DHCPv6 Prefix Delegation Using AAA, page 1 • How to Configure DHCPv6 Prefix Delegation Using AAA, page 2 • Configuration Examples for DHCPv6 Prefix Delegation Using AAA, page 3 • Additional References, page 3 • Feature Information for DHCPv6 Prefix Delegation Using AAA, page 4 Finding Feature Information Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required. Information About DHCPv6 Prefix Delegation Using AAA Prefix Delegation An IPv6 prefix delegating device selects IPv6 prefixes to be assigned to a requesting device upon receiving a request from the client. The delegating device might select prefixes for a requesting device in the following ways: • Dynamic assignment from a pool of available prefixes. • Dynamic assignment from a pool name obtained from the RADIUS server. IP Addressing: DHCP Configuration Guide, Cisco IOS Release 15M&T 1
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DHCPv6 Prefix Delegation Using AAA
This feature enables the Dynamic Host Configuration Protocol for IPv6 (DHCPv6) server to use AAA toobtain the prefix assignment through an AAA/RADIUS authorization request.
• Finding Feature Information, page 1
• Information About DHCPv6 Prefix Delegation Using AAA, page 1
• How to Configure DHCPv6 Prefix Delegation Using AAA, page 2
• Configuration Examples for DHCPv6 Prefix Delegation Using AAA, page 3
• Additional References, page 3
• Feature Information for DHCPv6 Prefix Delegation Using AAA, page 4
Finding Feature InformationYour software release may not support all the features documented in this module. For the latest caveats andfeature information, see Bug Search Tool and the release notes for your platform and software release. Tofind information about the features documented in this module, and to see a list of the releases in which eachfeature is supported, see the feature information table.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support.To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Information About DHCPv6 Prefix Delegation Using AAA
Prefix DelegationAn IPv6 prefix delegating device selects IPv6 prefixes to be assigned to a requesting device upon receivinga request from the client. The delegating device might select prefixes for a requesting device in the followingways:
• Dynamic assignment from a pool of available prefixes.
• Dynamic assignment from a pool name obtained from the RADIUS server.
IP Addressing: DHCP Configuration Guide, Cisco IOS Release 15M&T 1
• Assignment of prefix obtained from the RADIUS sever.
Contrary to IPv4 address assignment, an IPv6 user will be assigned a prefix, not a single address. Typicallythe Internet service provider (ISP) assigns a 64- or 48-bit prefix.
DHCP SIP Server OptionsTwo DHCP for IPv6 Session Initiation Protocol (SIP) server options describe a local outbound SIP proxy:one carries a list of domain names, the other a list of IPv6 addresses. These two options can be configured ina DHCPv6 configuration pool.
How to Configure DHCPv6 Prefix Delegation Using AAA
Cisco IOS IPv6 Feature MappingCisco IOS IPv6 features
Standards and RFCs
TitleStandard/RFC
IPv6 RFCsRFCs for IPv6
MIBs
MIBs LinkMIB
To locate and downloadMIBs for selected platforms,Cisco IOS releases, and feature sets, use Cisco MIBLocator found at the following URL:
http://www.cisco.com/go/mibs
Technical Assistance
LinkDescription
http://www.cisco.com/cisco/web/support/index.htmlThe Cisco Support and Documentation websiteprovides online resources to download documentation,software, and tools. Use these resources to install andconfigure the software and to troubleshoot and resolvetechnical issues with Cisco products and technologies.Access to most tools on the Cisco Support andDocumentation website requires a Cisco.com user IDand password.
Feature Information for DHCPv6 Prefix Delegation Using AAAThe following table provides release information about the feature or features described in this module. Thistable lists only the software release that introduced support for a given feature in a given software releasetrain. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support.To access Cisco Feature Navigator, go to . An account on Cisco.com is not required.
IP Addressing: DHCP Configuration Guide, Cisco IOS Release 15M&T4
DHCPv6 Prefix Delegation Using AAAFeature Information for DHCPv6 Prefix Delegation Using AAA