R21xx-HP FlexFabric 11900 Layer 3 IP Services Configuration Guide

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2001:410::/48 Auto(C) Jul 10 20:44:05 2009
Dynamic IPv6 address assignment configuration example
Network requirements
As shown in Figure 67, Switch A serves as a DHCPv6 server to assign IPv6 addresses to the clients in
subnets 1::1:0:0:0/96 and 1::2:0:0:0/96. On Switch A, configure the IPv6 address for VLAN-interface
10 and 1::2:0:0:1/96 for VLAN-interface 20. The lease duration of the addresses on subnet
1::1:0:0:0/96 is 172800 seconds (2 days), the valid time is 345600 seconds (4 days), the domain name
suffix is aabbcc.com, and the DNS server address is 1::1:0:0:2/96. The lease duration of the addresses
on subnet 1::2:0:0:0/96 is 432000 seconds (5 days), the valid time is 864000 seconds (10 days), the
domain name is aabbcc.com, and the DNS server address is 1::2:0:0:2/96.
Figure 67 Network diagram
Configuration procedure
1. Configure the IPv6 addresses for the interfaces on the DHCPv6 server. (Details not shown.)
2. Enable DHCPv6:
# Enable DHCPv6 server on VLAN-interface 10 and VLAN-interface 20.
<SwitchA> system-view
[SwitchA] interface vlan-interface 10
[SwitchA-Vlan-interface10] ipv6 dhcp select server
[SwitchA-Vlan-interface10] quit
[SwitchA] interface vlan-interface20
[SwitchA-Vlan-interface20] ipv6 dhcp select server
[SwitchA-Vlan-interface20] quit
# Exclude the DNS server address from dynamic assignment.
[SwitchA] ipv6 dhcp server forbidden-address 1::1:0:0:2
[SwitchA] ipv6 dhcp server forbidden-address 1::2:0:0:2
# Configure the DHCPv6 address pool 1 to assign IPv6 addresses and other configuration
parameters to clients in subnet 1::1:0:0:0/96.
[SwitchA] ipv6 dhcp pool 1
[SwitchA-dhcp6-pool-1] network 1::1:0:0:0/96 preferred-lifetime 172800
valid-lifetime 345600
[SwitchA-dhcp6-pool-1] domain-name aabbcc.com
[SwitchA-dhcp6-pool-1] dns-server 1::1:0:0:2