Configuring A Dhcpv6 Policy For Ipv6 Address And Prefix Assignment - H3C SR8800-F Configuration Manual

Step
5. Specify a SIP server address
or domain name.
6. Configure a self-defined
DHCPv6 option.
7. Return to system view.
8. Create a DHCPv6 address
pool and enter its view.
9. Specify a DHCPv6 option
group.
Configuring a DHCPv6 policy for IPv6 address
and prefix assignment
About DHCPv6 policy for IPv6 address and prefix assignment
In a DHCPv6 policy, each DHCPv6 user class has a bound DHCPv6 address pool. Clients matching
different user classes obtain IPv6 addresses, IPv6 prefixes, and other parameters from different
address pools. The DHCPv6 policy must be applied to the interface that acts as the DHCPv6 server.
When receiving a DHCPv6 request, the DHCPv6 server compares the packet against the user
classes in the order that they are configured.
If a match is found and the bound address pool has assignable IPv6 addresses or prefixes, the
server uses the address pool for assignment. If the bound address pool does not have assignable
IPv6 addresses or prefixes, the assignment fails.
If no match is found, the server uses the default DHCPv6 address pool for assignment. If no default
address pool is specified or the default address pool does not have assignable IPv6 addresses or
prefixes, the assignment fails.
For successful assignment, make sure the applied DHCPv6 policy and the bound address pools
exist.
A match rule cannot match an option added by the DHCPv6 device, for example, Option 18 or Option
37.
Procedure
To configure a DHCPv6 policy for IPv6 address and prefix assignment:
Step
1. Enter system view.
2. Create a DHCPv6 user class
and enter DHCPv6 user class
view.
3. Configure a match rule for the
DHCPv6 user class.
Command
sip-server { address ipv6-address |
domain-name domain-name }
option code hex hex-string
quit
ipv6 dhcp pool pool-name
option-group option-group-number
Command
system-view
ipv6 dhcp class class-name
if-match rule rule-number { option
option-code [ ascii ascii-string
[ offset offset | partial ] | hex
hex-string [ mask mask | offset
offset length length | partial ] ] |
relay-agent
gateway-ipv6-address }
183
Remarks
By default, no SIP server
address or domain name is
specified.
By default, no self-defined
DHCPv6 option is
configured.
N/A
By default, no DHCPv6
address pools exist.
By default, no DHCPv6
option group is specified.
Remarks
N/A
By default, no DHCPv6 user
classes exist.
By default, no match rule is
configured for a DHCPv6 user
class.