Ip Dhcp-Relay Agent-Option Checking - Allied Telesis AT-8100L/8 User Manual

AT-8100 Switch Command Line User's Guide

IP DHCP-RELAY AGENT-OPTION CHECKING

Syntax
ip dhcp-relay agent-option checking
Parameters
None
Mode
Global Configuration Mode
Description
Use this command to configure the DHCP relay agent to discard DHCP
requests that have option 82 information and a null IP address (0.0.0.0) in
the giaddr fields. You may use this feature to protect the network from fake
or suspicious DHCP requests.
Confirmation Command
"SHOW IP DHCP-RELAY" on page 503
Example
This example configures the DHCP relay agent to discard DHCP requests
with option 82 information and a null IP address (0.0.0.0) in the giaddr
fields:
awplus> enable
awplus# configure terminal
awplus(config)# ip dhcp-relay agent-option checking
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