Amer Networks SS2R48G4i V2 - Manual (Page 179)

SS2R24G4i/SS2R48G4i
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Command logging source {default | m_shell|sys_event|anti_attack} channel { console |
logbuff | loghost | monitor } [ level { critical | debugging | notifications | warnings } [state
{ on | off } ] ]
Function The details about this command are covered in the chapter on system log; the data source
of this command anti_attack records information about all kinds of denfense to network attacks,
including the automatic defense action log of dhcp snooping.
Parameters Not covered
Command Mode Global configuration mode
Default Setting Not covered
19.3.1.3 show logging lastFailureInfo
Command show logging lastFailureInfo
Function This command is used to display the system abnormal information recorded in the flash. The
defense action of DHCP Snooping is also recorded in the flash as system abnormal information, and
can be checked via this command.
Command Mode Admin Mode
19.3.2 DHCP SnoopingTroubleshooting
If there are problems when using DHCP Snooping, please check the following possible reasons
—
Check whether the global DHCP Snooping switch is enabled;
— If the port does not response to invalid DHCP Server packets, please check whether the port
has been set as an un-trusted port of dhcp snooping.
19.3.2.1 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
procedure of message processing.
Command Mode Admin Mode
19.3.2.2 debug ip dhcp snooping event
Command debug ip dhcp snooping event
no debug ip dhcp snooping event
Function This command is used to enable the DHCP SNOOPING debug switch to debug the state of
DHCP SNOOPING tasks.
Command Mode Admin Mode