Client Security Commands
4-121
4
Related Commands
ip dhcp snooping information policy (4-121)
ip dhcp snooping (4-115)
ip dhcp snooping information policy
This command specifies how to handle client requests which already contain DHCP
Option 82 information.
Syntax
ip dhcp snooping information policy {drop | keep | replace}
• drop - Drop the request packet instead of relaying it.
• keep - Retain the Option 82 information in the client request, and unicast
the packet to the DHCP server.
• replace - Replace the Option 82 information in the client’s request with
information about the relay agent itself, insert the relay agent’s address
(when DHCP snooping is enabled), and unicast the packet to the DHCP
server.
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 drop the DHCP packets, keep
the existing information, or replace it with the switch’s relay information.
Example
Related Commands
ip dhcp snooping information option (4-120)
ip dhcp snooping (4-115)
show ip dhcp snooping
This command shows the DHCP snooping configuration settings.
Command Mode
Privileged Exec
Console(config)#ip dhcp snooping information policy drop
Console(config)#
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