Allocating Different Ipv6 Addresses To Dhcpv6 Clients With The Same Mac; Setting The Dscp Value For Dhcpv6 Packets Sent By The Dhcpv6 Server - H3C SR8800-F Configuration Manual

Step
3. Enable the DHCPv6
server on the interface.
4. Configure an
address/prefix
assignment method.
Allocating different IPv6 addresses to DHCPv6
clients with the same MAC
Traditionally, the DHCPv6 server identifies DHCPv6 clients based on their MAC addresses. Each
MAC address can be bound to only one IPv6 address. However, DHCPv6 clients that have the same
MAC address exist in the network, and each client requires an IPv6 address. You can enable this
feature to allocate different IPv6 addresses to such clients.
This feature enables the DHCPv6 server to use the following methods to identify the DHCPv6 clients
that have the same MAC address:
•
If a DHCPv6 snooping device or a DHCPv6 relay agent exist, you must enable the DHCPv6
snooping device or the DHCPv6 relay agent to support the Interface-ID option. The DHCPv6
server identifies a DHCPv6 client by the MAC address of the client and the Interface-ID option
in the DHCPv6 request.
•
If no DHCPv6 snooping device or DHCPv6 relay agent is on the network, the DHCPv6 server
identifies a DHCPv6 client by the combination of the following information:
The MAC address of the client.
The interface name in the DHCPv6 request.
The VLAN information of the receiving interface.
To allocate different IPv6 addresses to DHCPv6 clients with the same MAC address:
Step
1. Enter system view.
2. Enable allocation of
different IPv6 addresses to
DHCPv6 clients with the
same MAC address.
Setting the DSCP value for DHCPv6 packets sent
by the DHCPv6 server
The DSCP value of a packet specifies the priority level of the packet and affects the transmission
priority of the packet.
Command
ipv6 dhcp select server
•
Configure global address
assignment:
ipv6 dhcp server { allow-hint |
preference preference-value |
rapid-commit } *
•
Apply a DHCPv6 address pool to
the interface:
ipv6 dhcp server apply pool
pool-name [ allow-hint |
preference preference-value |
rapid-commit ] *
Command
system-view
ipv6 dhcp server multi-ip per-mac
enable
185
Remarks
By default, the interface discards
DHCPv6 packets from DHCPv6
clients.
By default, desired
address/prefix assignment and
rapid assignment are disabled,
and the default preference is 0.
Remarks
N/A
By default, allocation of
different IPv6 addresses to
DHCPv6 clients with the same
MAC address is disabled.