H3C S6812 Series Command Reference Manual page 975

Use undo ipv6 dhcp relay server-address to remove DHCPv6 server addresses.
Syntax
ipv6 dhcp relay server-address ipv6-address [ interface interface-type interface-number ]
undo ipv6 dhcp relay server-address [ ipv6-address [ interface interface-type interface-number ] ]
Default
No DHCPv6 server address is specified on the DHCPv6 relay agent.
Views
Interface view
Predefined user roles
network-admin
Parameters
ipv6-address: Specifies the IPv6 address of a DHCPv6 server.
interface interface-type interface-number: Specifies an output interface through which the relay
agent forwards the DHCPv6 requests to the DHCPv6 server. If you do not specify an output interface,
the relay agent looks up the routing table for an output interface.
Usage guidelines
Upon receiving a request from a DHCPv6 client, the interface encapsulates the request into a
Relay-forward message and forwards the message to the specified DHCPv6 server.
You can specify a maximum of eight DHCPv6 servers on an interface. The DHCPv6 relay agent
forwards DHCP requests to all the specified DHCPv6 servers.
If the DHCPv6 server address is a link-local address or multicast address, you must specify an
output interface. If you do not specify an output interface, DHCPv6 packets might fail to reach the
DHCPv6 server.
If you do not specify an IPv6 address, the undo ipv6 dhcp relay server-address command
removes all DHCPv6 server addresses specified on the interface.
Do not enable the DHCPv6 client and the DHCPv6 relay agent on the same interface.
Examples
# Enable the DHCPv6 relay agent on VLAN-interface 2 and specify the DHCPv6 server address
2001:1::3.
<Sysname> system-view
[Sysname] interface vlan-interface 2
[Sysname-Vlan-interface2] ipv6 dhcp select relay
[Sysname-Vlan-interface2] ipv6 dhcp relay server-address 2001:1::3
Related commands
display ipv6 dhcp relay server-address
ipv6 dhcp select
remote-server
Use remote-server to specify DHCPv6 servers for a DHCPv6 address pool.
Use undo remote-server to remove DHCPv6 servers from a DHCPv6 address pool.
Syntax
remote-server ipv6-address [ interface interface-type interface-number ]
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