Enabling Dhcp Snooping Logging; Displaying And Maintaining Dhcp Snooping - HPE FlexNetwork MSR Series Comware 7 Layer 3 - Ip Services Configuration Manuals

Hardware
MSR3012/3024/3044/3064
MSR4060/4080
Perform this task to configure a port as a DHCP packet blocking port. This blocking port drops all
incoming DHCP requests.
To configure a DHCP packet blocking port:
Step
1. Enter system view.
2. Enter interface view.
3. Configure the port to block
DHCP requests.

Enabling DHCP snooping logging

The DHCP snooping logging feature enables the DHCP snooping device to generate DHCP
snooping logs and send them to the information center. For information about the log destination and
output rule configuration in the information center, see Network Management and Monitoring
Configuration Guide.
As a best practice, disable this feature if the log generation affects the device performance.
To enable DHCP snooping logging:
Step
1. Enter system view.
2. Enable DHCP snooping
logging.

Displaying and maintaining DHCP snooping

Execute display commands in any view, and reset commands in user view.
Task
Display DHCP snooping entries.
Display Option 82 configuration
information on the DHCP snooping
device.
Display DHCP packet statistics on the
DHCP snooping device (centralized
devices in standalone mode).
Display DHCP packet statistics on the
DHCP snooping device (distributed
Command
system-view
interface interface-type
interface-number
dhcp snooping deny
Command
system-view
dhcp snooping log enable
Command
display dhcp snooping binding [ ip
ip-address [ vlan vlan-id ] ]
display dhcp snooping information { all |
interface interface-type interface-number }
display dhcp snooping packet statistics
display dhcp snooping packet statistics
[ slot slot-number ]
100
DHCP packet blocking port
compatibility
Yes
Yes
Remarks
N/A
N/A
By default, the port does not block
DHCP requests.
Remarks
N/A
By default, DHCP snooping
logging is disabled.
Remarks
Available in any
view.
Available in any
view.
Available in any
view.
Available in any
view.