Operational Notes - HP E3800-24G-PoE+-2SFP+ Access Security Manual

Configuring Advanced Threat Protection
DHCP Snooping
HP Switch(config)# show dhcp-snooping binding
MacAddress
-------------
22.22.22.22.22.22
Figure 11-8. Example Showing DHCP Snooping Binding Database Contents
N o t e
11-12
A message is logged in the system event log if the DHCP binding database fails
to update.
To display the contents of the DHCP snooping binding database, enter this
command.
Syntax: show dhcp-snooping binding
IP
--------------- ---- --------- ---------
10.0.0.1
If a lease database is configured, the switch drops all DHCP packets until the
lease database is read. This only occurs when the switch reboots and is
completed quickly. If the switch is unable to read the lease database from the
tftp server, it waits until that operation times out and then begins forwarding
DHCP packets.
Enabling Debug Logging
To enable debug logging for DHCP snooping, use this command.
Syntax: [no] debug dhcp-snooping [agent | event | packet]
agent
event
packet

Operational Notes

■ DHCP is not configurable from the WebAgent or menu interface.
■ If packets are received at too high a rate, some may be dropped and need
to be re-transmitted.
VLAN Interface Time left
4 - 2 1600
Displays DHCP snooping agent messages.
Displays DHCP snooping event messages.
Displays DHCP snooping packet messages.