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ip dhcp relay information policy
This command sets the DHCP snooping information option policy for DHCP client
packets that include Option 82 information.
Syntax
ip dhcp relay information policy <drop | keep | replace>
• drop - Discards the client’s DHCP information and then floods the packet
to the VLAN.
• keep - Retains the client’s DHCP information
• replace - Overwrites the DHCP client packet information with the switch’s
relay information.
Default Setting
Replace
Command Mode
Global Configuration
Command Usage
When the switch receives DHCP packets from clients that already include
DHCP Option 82 information, the switch can be configured to set the action
policy for these packets. Either the switch can discard the Option 82
information, keep the existing information, or replace it with the switch’s relay
information.
Example
ip dhcp relay server
This command specifies the addresses of DHCP servers to be used by the switch’s
DHCP relay agent. Use the no form to clear all addresses.
Syntax
ip dhcp relay server address1 [address2 [address3 ...]]
no ip dhcp relay server
address - IP address of a DHCP server. (Range: 1-5 addresses)
Default Setting
None
Command Mode
Interface Configuration (VLAN)
Console(config)#ip dhcp relay information policy drop
Console(config)#