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	Command	Remarks
1. Enter system view.	system-view	N/A
2. Enter interface view.	interface interface-type interface-number	N/A
3. Set the maximum rate at which an interface can receive DHCPv6 packets.	ipv6 dhcp snooping rate-limit rate	By default, incoming DHCPv6 packets on an interface are not rate limited. The rate configured on a Layer 2 aggregate interface applies to all members of the aggregate interface. If a member interface leaves the aggregation group, it uses the rate configured in its Ethernet interface view.

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enter interface view.

interface interface-type interface-number

N/A

3. Set the maximum rate at which an interface can receive DHCPv6 packets.

ipv6 dhcp snooping rate-limit rate

By default, incoming DHCPv6 packets on an interface are not rate limited.

The rate configured on a Layer 2 aggregate interface applies to all members of the aggregate interface. If a member interface leaves the aggregation group, it uses the rate configured in its Ethernet interface view.

prev	up	next
Setting the maximum number of DHCPv6 snooping entries	home	Enabling DHCPv6-REQUEST check