IP Networking Configuration
Configuration Guide 128 Document #: LTRT-31657
20.5.5 Example of DHCPv6 Prefix Delegation
The following is an example of DHCPv6 Prefix Delegation.
20.5.5.1 Configuration of Prefix Delegation
The configuration is based on the following example scenario:
Figure 20-7: DHCPv6 Prefix Delegation Example
The configuration of the ISP CISCO 7200 router is as follows (irrelevant sections of the
configuration have been omitted):
ISP# ipv6 unicast-routing
ISP# ipv6 dhcp pool dhcpv6
prefix-delegation pool dhcpv6-pool1 lifetime 1800 600
interface FastEthernet0/0
ISP# no ip address
ISP# duplex auto
ISP# speed auto
ISP# ipv6 address 2001:100:1::1/64
ISP# ipv6 enable
ISP# ipv6 dhcp server dhcpv6 rapid-commit
!
ISP# ipv6 local pool dhcpv6-pool1 2001:100:0:FF00::/56 56
!
The MSBR needs to be configured as follows.
MSBR(config-data)# int gigabitethernet 0/0
MSBR(conf-if-GE 0/0)# ipv6 dhcp-client pd rapid-commit
MSBR(conf-if-GE 0/0)# exit
MSBR(config-data)# interface vlan 1
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