H3C SOHO IE4300, Command Reference Manual

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Usage guidelines
A DHCPv6 client can obtain an IPv6 prefix through DHCPv6 and use the IPv6 prefix for IPv6 address
assignment in a downstream network. If the IPv6 prefix is in a different subnet than the IPv6 address
of the DHCPv6 client's upstream interface, the downstream network cannot access the external
network. You can use this command to configure the DHCPv6 server or DHCPv6 relay agent,
whichever is on the same link as the DHCPv6 client, to advertise the IPv6 prefix.
To use this command on the DHCPv6 relay agent, you must enable the DHCPv6 relay agent to
record DHCPv6 relay entries first.
Examples
# Enable the DHCPv6 server to advertise IPv6 prefixes.
<Sysname> system-view
[Sysname] ipv6 dhcp advertise pd-route
ipv6 dhcp dscp
Use
ipv6 dhcp dscp
to set the DSCP value for the DHCPv6 packets sent by the DHCPv6 server
or the DHCPv6 relay agent.
Use
undo ipv6 dhcp dscp
to restore the default.
Syntax
ipv6 dhcp dscp dscp-value
undo ipv6 dhcp dscp
Default
The DSCP value is 56 in DHCPv6 packets sent by the DHCPv6 server or the DHCPv6 relay agent.
Views
System view
Predefined user roles
network-admin
Parameters
dscp-value
: Specifies the DSCP value for DHCPv6 packets, in the range of 0 to 63.
Usage guidelines
The DSCP value of a packet specifies the priority level of the packet and affects the transmission
priority of the packet. A bigger DSCP value represents a higher priority.
Examples
# Set the DSCP value to 30 for DHCPv6 packets sent by the DHCPv6 server or the DHCPv6 relay
agent.
<Sysname> system-view
[Sysname] ipv6 dhcp dscp 30
ipv6 dhcp log enable
Use
ipv6 dhcp log enable
to enable DHCPv6 server logging.
Use undo ipv6 dhcp log enable to disable DHCPv6 server logging.