Chapter 9
| General Security Measures
DHCPv4 Snooping
– 350 –
Console#clear ip dhcp snooping binding 11-22-33-44-55-66 vlan 1
Console#
clear ip dhcp
snooping database
flash
This command removes all dynamically learned snooping entries from flash
memory.
Command Mode
Privileged Exec
Example
Console#clear ip dhcp snooping database flash
Console#
ip dhcp snooping
database flash
This command writes all dynamically learned snooping entries to flash memory.
Command Mode
Privileged Exec
Command Usage
This command can be used to store the currently learned dynamic DHCP snooping
entries to flash memory. These entries will be restored to the snooping table when
the switch is reset. However, note that the lease time shown for a dynamic entry
that has been restored from flash memory will no longer be valid.
Example
Console#ip dhcp snooping database flash
Console#