Specifications

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0XO(15.1(1)XO)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
renew ip dhcp snooping database
renew ip dhcp snooping datab ase
To renew the DHCP binding database, us e the renew ip dhcp snooping database command.
renew ip dhcp snooping database [validation none] [url]
Syntax Description
Defaults T his command has no default settings.
Command Modes Privileged EXE C mode
Usage Guidelines I f the URL is not provided, the switch tries to read the file from the configured URL.
Examples This exampl e shows how to renew the DHCP binding da tabase while bypassi ng the CRC checks:
Switch# renew ip dhcp snooping database validation none
Switch#
Related Commands
validation none (Optional) Specifies that the checksum associated with the contents of the file
specified by the URL is not verified.
url (Optional) Specifies the file from which the read is performed.
Command Description
ip dhcp snooping Globally enables DHCP snooping.
ip dhcp snooping binding Sets up and generates a DHCP binding configuration to
restore binding s across reboots.
ip dhcp snooping information option E nables DHCP option 82 data insertion.
ip dhcp snooping trust E nables DHCP snooping on a trusted VLAN.
ip dhcp snooping vlan Enables DHCP snooping on a VLAN or a group o f VLANs.
show ip dhcp s nooping Displays t he DHCP snooping configur ation.
show ip dhcp snooping binding Displays the DHCP snooping binding entrie s.