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Chapter 22 Commands for DHCP
Snooping
22.1 debug ip dhcp snooping packet interface
Command: debug ip dhcp snooping packet interface {[ethernet] <InterfaceName>}
no debug ip dhcp snooping packet {[ethernet] <InterfaceName>}
Function: This command is used to enable the DHCP SNOOPING debug switch to
debug the information that DHCP SNOOPING is receiving a packet.
Parameters: <InterfaceName>: Interface name.
Command Mode: Admin Mode.
Usage Guide: The information that DHCP Snooping is receiving messages from a
specific port.
22.2 debug ip dhcp snooping packet
Command: debug ip dhcp snooping packet
no debug ip dhcp snooping packet
Function: This command is used to enable the DHCP SNOOPING debug switch to
debug the message-processing procedure of DHCP SNOOPING.
Command Mode: Admin Mode.
Usage Guide: The debug information that the DHCP SNOOPING is processing
messages, including every step in the message-processing procedure: adding alarm
information, adding binding information, transmitting DHCP messages, adding/peeling
option 82 and etc.
22.3 debug ip dhcp snooping update
Command: debug ip dhcp snooping update
no debug ip dhcp snooping update
Function: This command is use to enable the DHCP snooping debug switch to debug the
communication information between DHCP snooping and helper server.