3Com S7906E Configuration Manual page 490

Figure 1-5 Stateless DHCPv6 configuration
Configuration procedure
1) Configure Switch B
# Enable the IPv6 packet forwarding function.
<SwitchB> system-view
[SwitchB] ipv6
# Configure the IPv6 address of VLAN-interface 2.
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] ipv6 address 1::1 64
# Set the "O" flag in the RA messages to 1.
[SwitchB-Vlan-interface2] ipv6 nd autoconfig other-flag
# Enable Switch B to send RA messages.
[SwitchB-Vlan-interface2] undo ipv6 nd ra halt
2) Configure Switch A
# Enable the IPv6 packet forwarding function.
<SwitchA> system-view
[SwitchA] ipv6
# Enable stateless IPv6 address autoconfiguration on VLAN-interface 2.
[SwitchA] interface vlan-interface 2
[SwitchA-Vlan-interface2] ipv6 address auto
With this command executed, if VLAN-interface 2 has no IP address configured, Switch A will
automatically generate a link-local address, and send an RS message, requesting the gateway (Switch
B) to reply with an RA message immediately.
Verification
After receiving an RA message with the "M" flag set to 0 and with the "O" flag set to 1, Switch A
automatically enables the stateless DHCPv6 function.
# You can use the display ipv6 dhcp client command to view the current client configuration
information. If the client successfully obtains configuration information from the server, the following
information will be displayed.
[SwitchA-Vlan-interface2] display ipv6 dhcp client interface vlan-interface 2
Vlan-interface2 is in stateless DHCPv6 client mode
State is OPEN
Preferred Server:
Reachable via address : FE80::213:7FFF:FEF6:C818
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