H3C Technologies H3C S5560 Series Switches - Manual (Page 202)

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DHCPv6 relay agent configuration example
Network requirements
As shown in Figure 74 , configure the DHCPv6 relay agent on Switch A to relay DHCPv6 packets between
DHCPv6 clients and the DHCPv6 server.
Switch A acts as the gateway of network 1::/64. It sends RA messages to notify the hosts to obtain IPv6
addresses and other configuration parameters through DHCPv6. For more information about RA
messages, see " Configuring basic IPv6 settings ."
Figure 74 Network diagram
Configuration procedure
1. Configure the DHCPv6 relay agent on Switch A:
# Specify IPv6 addresses for VLAN-interface 2 and VLAN-interface 3.
system-view
[SwitchA] interface vlan-interface 2
[SwitchA-Vlan-interface2] ipv6 address 2::1 64
[SwitchA-Vlan-interface2] quit
[SwitchA] interface vlan-interface 3
[SwitchA-Vlan-interface3] ipv6 address 1::1 64
# Enable the DHCPv6 relay agent on VLAN-interface 3 and specify the DHCPv6 server on the
relay agent.
[SwitchA-Vlan-interface3] ipv6 dhcp select relay
[SwitchA-Vlan-interface3] ipv6 dhcp relay server-address 2::2
2. Enable Switch A to send RA messages, and turn on the M and O flags.
[SwitchA-Vlan-interface3] undo ipv6 nd ra halt
[SwitchA-Vlan-interface3] ipv6 nd autoconfig managed-address-flag
[SwitchA-Vlan-interface3] ipv6 nd autoconfig other-flag
Verifying the configuration
# Display DHCPv6 server address information on Switch A.