R211x-HP Flexfabric 11900 Layer 3 - IP Services Command Reference

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The DHCPv6 packet rate limit feature enables the interface to discard DHCPv6 packets that exceed the
maximum rate.
If you configure this command on a Layer 2 Ethernet interface that is a member port of a Layer 2
aggregate interface, the Layer 2 Ethernet interface uses the DHCP packet maximum rate configured on
the Layer 2 aggregate interface. If the Layer 2 Ethernet interface leaves the aggregation group, it uses its
own DHCP packet maximum rate.
Examples
# Specify Ten-GigabitEthernet 1/0/1 to receive DHCPv6 packets at a maximum rate of 64 Kbps.
<Sysname> system-view
[Sysname] interface Ten-GigabitEthernet1/0/1
[Sysname-Ten-GigabitEthernet1/0/1] ipv6 dhcp snooping rate-limit 64
ipv6 dhcp snooping trust
Use ipv6 dhcp snooping trust to configure a port as a trusted port.
Use undo ipv6 dhcp snooping trust to restore the default state of a port.
Syntax
ipv6 dhcp snooping trust
undo ipv6 dhcp snooping trust
Default
After you enable DHCPv6 snooping, all ports are untrusted.
Views
Layer 2 Ethernet interface view, Layer 2 aggregate interface view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
Specify the port facing the DHCP server as trusted and specify the other ports as untrusted so DHCP
clients can obtain valid IP addresses.
Examples
# Specify Ten-GigabitEthernet1/0/1 as a trusted port.
<Sysname> system-view
[Sysname] interface Ten-GigabitEthernet 1/0/1
[Sysname-Ten-GigabitEthernet1/0/1] ipv6 dhcp snooping trust
Related commands
display ipv6 dhcp snooping trust
reset ipv6 dhcp snooping binding
Use reset ipv6 dhcp snooping binding to clear DHCPv6 snooping entries.