Allied Telesis AT-S95 CLI - Manual (Page 95)

DHCP Snooping Commands
Page 95
ip dhcp snooping information option allowed-untrusted
The ip dhcp snooping information option allowed-untrusted Global Configuration mode command configures
a switch to accept DHCP packets with option-82 information from an untrusted port. Use the no form of this
command to configure the switch to drop these packets from an untrusted port.
Syntax
ip dhcp snooping information option allowed-untrusted
no ip dhcp snooping information option allowed-untrusted
Parameters
This command has no arguments or keywords.
Default Configuration
Discard DHCP packets with option-82 information from an untrusted port.
Command Mode
Global Configuration mode
User Guidelines
There are no user guidelines for this command.
Example
The following example configures the switch to accept DHCP packets with option-82 information from an
untrusted port.
ip dhcp snooping verify
The ip dhcp snooping verify Global Configuration mode command configures the switch to verify, on an
untrusted port, that the source MAC address in a DHCP packet matches the client hardware address. Use the no
form of this command to configure the switch to not verify the MAC addresses.
Syntax
ip dhcp snooping verify
no ip dhcp snooping verify
Parameters
This command has no arguments or keywords.
Default Configuration
The switch verifies the source MAC address in a DHCP packet that is received on untrusted ports matches the
client hardware address in the packet.
Command Mode
Global configuration.
console(config)# ip dhcp snooping information option allowed-untrusted