Applying A Dhcpv6 Address Pool To A Vpn Instance - H3C SR8800-F Configuration Manual

Figure 59 Network diagram
If the address pool is applied to a VPN instance, the VPN instance must exist.
To configure the subnet advertisement feature:
Step
1. Enter system view.
2. Create an address pool and
enter its view.
3. Advertise the subnet assigned
to DHCPv6 clients.
Applying a DHCPv6 address pool to a VPN
instance
If a DHCPv6 address pool is applied to a VPN instance, the DHCPv6 server assigns IPv6 addresses
in this address pool to clients in the VPN instance. Addresses in this address pool will not be
assigned to clients on the public network.
The DHCPv6 server can obtain the VPN instance to which a DHCPv6 client belongs from the
following information:
•
The client's VPN information stored in authentication modules, such as IPoE.
•
The VPN information of the DHCPv6 server's interface that receives DHCPv6 packets from the
client.
The VPN information from authentication modules takes priority over the VPN information of the
receiving interface.
An MCE acting as the DHCP server can assign IP addresses not only to clients on public networks,
but also to clients on private networks. The IP address ranges of public and private networks or those
of private networks on the DHCP server cannot overlap. For more information about MCE, see
MPLS Configuration Guide.
To apply a DHCPv6 address pool to a VPN instance:
Command
system-view
ipv6 dhcp pool pool-name
network { prefix/prefix-length |
prefix prefix-number
[ sub-prefix/sub-prefix-length ] }
[ preferred-lifetime
preferred-lifetime valid-lifetime
valid-lifetime ] export-route
187
Remarks
N/A
By default, no DHCPv6 address
pools exist.
By default, the subnet assigned
to DHCPv6 clients is not
advertised.