HP 6120G/XG HP ProCurve Series 6120 Blade Switches Access Security Guide - Page 411
Operational Notes, Example Showing DHCP Snooping Binding Database Contents, agent, event
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Configuring Advanced Threat Protection DHCP Snooping 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 ProCurve(config)# show dhcp-snooping binding MacAddress 22.22.22.22.22.22 IP VLAN Interface Time left 10.0.0.1 4 B2 1600 Figure 10-8. Example Showing DHCP Snooping Binding Database Contents Note 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 Displays DHCP snooping agent messages. event Displays DHCP snooping event messages. packet Displays DHCP snooping packet messages. Operational Notes ■ DHCP is not configurable from the web management interface or menu interface. ■ If packets are received at too high a rate, some may be dropped and need to be re-transmitted. 10-13
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