Setup Guide
INTERFACE mode
INTERFACE PORT EXTENDER mode
ip dhcp snooping trust
3 Enable DHCP snooping on a VLAN.
CONFIGURATION mode
ip dhcp snooping vlan name
Enabling IPv6 DHCP Snooping
To enable IPv6 DHCP snooping, use the following commands.
1 Enable IPv6 DHCP snooping globally.
CONFIGURATION mode
ipv6 dhcp snooping
2 Specify ports connected to IPv6 DHCP servers as trusted.
INTERFACE mode
ipv6 dhcp snooping trust
3 Enable IPv6 DHCP snooping on a VLAN or range of VLANs.
CONFIGURATION mode
ipv6 dhcp snooping vlan vlan-id
Adding a Static Entry in the Binding Table
To add a static entry in the binding table, use the following command.
• Add a static entry in the binding table.
EXEC Privilege mode
ip dhcp snooping binding mac mac-address vlan-id vlan-id ip ip-address interface interface-
type interface-number lease lease-value
If multiple IP addresses are expected for the same MAC address, repeat this step for all IP addresses.
Adding a Static IPV6 DHCP Snooping Binding Table
To add a static entry in the snooping database, use the following command.
• Add a static entry in the snooping binding table.
EXEC Privilege mode
ipv6 dhcp snooping binding mac address vlan-id vlan-id ipv6 ipv6-address interface interface-
type | interface-number lease value
Clearing the Binding Table
To clear the binding table, use the following command.
Dynamic Host
Conguration Protocol (DHCP) 287