Microsens MS453490M Management Guide - Manual (Page 667)

C HAPTER 25 | General Security Measures
DHCP Snooping
– 667 –
◆ When an untrusted port is changed to a trusted port, all the dynamic
DHCP snooping bindings associated with this port are removed.
◆ Additional considerations when the switch itself is a DHCP client – The
port(s) through which it submits a client request to the DHCP server
must be configured as trusted.
E XAMPLE
This example sets port 5 to untrusted.
Console(config)#interface ethernet 1/5
Console(config-if)#no ip dhcp snooping trust
Console(config-if)#
R ELATED C OMMANDS
ip dhcp snooping (661)
ip dhcp snooping vlan (665)
clear ip dhcp
snooping database
flash
This command removes all dynamically learned snooping entries from flash
memory.
C OMMAND M ODE
Privileged Exec
E XAMPLE
Console(config)#ip dhcp snooping database flash
Console(config)#