Configuration procedure

# Specify IPv6 addresses for GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2.

<RouterA> system-view
[RouterA] interface gigabitethernet 1/0/2
[RouterA-GigabitEthernet1/0/2] ipv6 address 2::1 64
[RouterA-GigabitEthernet1/0/2] quit
[RouterA] interface gigabitethernet 1/0/1
[RouterA-GigabitEthernet1/0/1] ipv6 address 1::1 64

# Disable RA message suppression on GigabitEthernet 1/0/1.

[RouterA-GigabitEthernet1/0/1] undo ipv6 nd ra halt

# Set the M flag to 1 in RA advertisements to be sent on GigabitEthernet 1/0/1. Hosts that receive the RA messages will obtain IPv6 addresses through DHCPv6.

[RouterA-GigabitEthernet1/0/1] ipv6 nd autoconfig managed-address-flag

# Set the O flag to 1 in RA advertisements to be sent on GigabitEthernet 1/0/1. Hosts that receive the RA messages will obtain information other than IPv6 address through DHCPv6.

[RouterA-GigabitEthernet1/0/1] ipv6 nd autoconfig other-flag

# Enable the DHCPv6 relay agent on GigabitEthernet 1/0/1 and specify the DHCPv6 server on the relay agent.

[RouterA-GigabitEthernet1/0/1] ipv6 dhcp select relay
[RouterA-GigabitEthernet1/0/1] ipv6 dhcp relay server-address 2::2