Configuring Dhcpv6 Packet Rate Limit; Displaying And Maintaining Dhcpv6 Snooping - HP 6125XLG Layer 3-Ip Services Configuration Manual

Step
1. Enter system view.
2. Enter interface view.
3. Enable DHCPv6-REQUEST
check.

Configuring DHCPv6 packet rate limit

This DHCPv6 packet rate limit feature discards exceeding DHCPv6 packets to prevent attacks that send
large numbers of DHCPv6 packets.
To configure DHCPv6 packet rate limit:
Step
1. Enter system view.
2. Enter interface view.
3. Specify the maximum
rate at which an
interface can receive
DHCPv6 packets.

Displaying and maintaining DHCPv6 snooping

Execute display commands in any view, and reset commands in user view.
Task
Display information about trusted ports.
Display DHCPv6 snooping entries.
Command
system-view
interface interface-type
interface-number
ipv6 dhcp snooping check
request-message
Command
system-view
interface interface-type
interface-number
ipv6 dhcp snooping
rate-limit rate
197
Remarks
N/A
N/A
By default, DHCPv6-REQUEST check is
disabled.
You can enable the function only on Layer
2 Ethernet interfaces and Layer 2
aggregate interfaces.
Remarks
N/A
N/A
By default, incoming DHCPv6 packets on an
interface are not rate limited.
You can configure this command only on Layer
2 Ethernet interfaces and Layer 2 aggregate
interfaces.
If you specify the maximum rate 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.
Command
display ipv6 dhcp snooping trust
display ipv6 dhcp snooping binding [ address
ipv6-address [ vlan vlan-id ] ]