DHCPv6 Bulk-Lease Query

Last Updated: December 3, 2012

The Dynamic Host Configuration Protocol for IPv6 (DHCPv6) bulk-lease query feature allows a client to request information about DHCPv6 bindings. This functionality adds new query types and allows the bulk transfer of DHCPv6 binding data through TCP.

Finding Feature Information

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Information About DHCPv6 Bulk-Lease Query

DHCPv6 Bulk-Lease Query

DHCPv6 supports bulk-lease query that allows a client to request information about DHCPv6 bindings. This functionality adds new query types and allows the bulk transfer of DHCPv6 binding data through TCP.

Bulk-lease query is enabled by default if the DHCPv6 relay agent is enabled. Bulk-lease query is triggered at the relay agent startup to retrieve binding information lost because of a reload. If a DHCPv6 relay destination is configured on an interface, bulk-lease query is performed by the IPv6 address of the interface on which DHCPv6 relay is enabled. Bulk-lease query is a separate process from the relay agent process.

How to Configure DHCPv6 Bulk-Lease Query

Configuring DHCPv6 Bulk-Lease Query Parameters

The DHCPv6 Bulk-Lease Query feature is enabled automatically when the DHCPv6 relay agent is enabled.

SUMMARY STEPS

1.    enable

2.    configure terminal

3.    ipv6 dhcp-relay bulk-lease {data-timeout seconds | retry number} [disable]

4.    end


DETAILED STEPS
  Command or Action Purpose
Step 1
enable


Example:

Router> enable

 

Enables privileged EXEC mode.

  • Enter your password if prompted.
 
Step 2
configure terminal


Example:

Router# configure terminal

 

Enters global configuration mode.

 
Step 3
ipv6 dhcp-relay bulk-lease {data-timeout seconds | retry number} [disable]


Example:

Router(config)# ipv6 dhcp-relay bulk-lease data-timeout 60

 

Configures bulk-lease query parameters.

 
Step 4
end


Example:

Router(config)# end

 

Returns to privileged EXEC mode.

 

Configuration Examples for DHCPv6 Bulk-Lease Query

Example: Configuring DHCPv6 Bulk-Lease Query Parameters

Router# show ipv6 dhcp relay binding

Prefix: 2001:DB8::/64 (FastEthernet0/0)
  DUID: 0003000101020304053F
  IAID: N/A
  lifetime: 1187303
  expiration: 00:52:00 UTC May 2 2010
  Learnt via Bulk Lease Query
Prefix: 2001:DB8:0:1::/64 (FastEthernet0/0)
  DUID: 00030001010203040540
  IAID: N/A
  lifetime: 1187303
  expiration: 00:52:00 UTC May 2 2010
  Learnt via Bulk Lease Query
Prefix: 2001:DB8:0:2::/64 (FastEthernet0/0)
  DUID: 00030001010203040541
  IAID: N/A
  lifetime: 1187303
  expiration: 00:52:00 UTC May 2 2010
  Learnt via Bulk Lease Query
Prefix: 2001:DB8:0:3::/64 (FastEthernet0/0)
  DUID: 00030001010203040542
  IAID: N/A
  lifetime: 1187303
  expiration: 00:52:00 UTC May 2 2010
  Learnt via Bulk Lease Query
Prefix: 2001:DB8:0:4::/64 (FastEthernet0/0)
  DUID: 00030001010203040543
  IAID: N/A
  lifetime: 1187303
  expiration: 00:52:00 UTC May 2 2010
  Learnt via Bulk Lease Query

Additional References

Related Documents

Related Topic Document Title

IPv6 addressing and connectivity

IPv6 Configuration Guide

Cisco IOS commands

Cisco IOS Master Commands List, All Releases

IPv6 commands

Cisco IOS IPv6 Command Reference

Cisco IOS IPv6 features

Cisco IOS IPv6 Feature Mapping

Standards and RFCs

Standard/RFC Title

RFCs for IPv6

IPv6 RFCs

MIBs

MIB

MIBs Link

To locate and download MIBs for selected platforms, Cisco IOS releases, and feature sets, use Cisco MIB Locator found at the following URL:

http://www.cisco.com/go/mibs

Technical Assistance

Description Link

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http://www.cisco.com/cisco/web/support/index.html

Feature Information for DHCPv6 Bulk-Lease Query

The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. 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 www.cisco.com/go/cfn. An account on Cisco.com is not required.

Table 1 Feature Information for DHCPv6 Bulk-Lease Query
Feature Name Releases Feature Information

DHCPv6 Bulk-Lease Query

12.2(58)SE

15.1(1)S

Cisco IOS DHCPv6 relay agent supports bulk-lease query in accordance with RFC 5460.

The following commands were introduced or modified: ipv6 dhcp-relay bulk-lease, show ipv6 dhcp relay binding.

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