4 dhcp relay information check, 5 dhcp relay information option – CANOGA PERKINS 9175 Command Reference User Manual
Page 744
CanogaOS Command Reference
42-3
42.4 dhcp relay information check
To configure a Dynamic Host Configuration Protocol (DHCP) server to validate the relay agent
information option in forwarded BOOTREPLY messages, use the dhcp relay information check
command in global configuration mode. To disable an information check, use the no form of this
command.
Command Syntax
dhcp relay information check
no dhcp relay information check
Default
A DHCP server checks relay information. Invalid messages are dropped.
Command Mode
Global configuration
Usage
This command is used by cable access router termination systems. By default, DHCP checks relay
information. Invalid messages are dropped.
Examples
The following example configures the DHCP Server to check that the relay agent information option in
forwarded BOOTREPLY messages is valid:
Switch(config)# dhcp relay information check
Related Commands
dhcp relay information option
dhcp relay information policy
42.5 dhcp relay information option
To enable the system to insert a Dynamic Host Configuration Protocol (DHCP) relay agent information
option in forwarded BOOTREQUEST messages to a DHCP server, use the dhcp relay information
option command in global configuration mode. To disable inserting relay information into forwarded
BOOTREQUEST messages, use the no form of this command.
Command Syntax
dhcp relay information option
no dhcp relay information option
Default
The DHCP server does not insert relay information.