Specifications

show ip dhcp snooping
272
show ip dhcp snooping
Displays DHCP snooping information.
Syntax
show ip dhcp snooping
Input mode
User mode and administrator mode
Parameters
None
Example
Figure 19-1 Example of displaying DHCP snooping information
> show ip dhcp snooping
Date 2008/11/13 16:34:10 UTC
Switch DHCP snooping is Enable
Option allow untrusted: off, Verify mac-address: on
DHCP snooping is configured on the following VLANs:
1,10,100,1000
Interface Trusted Verify source Rate limit(pps)
fastethernet 0/1 no off unlimited
fastethernet 0/2 yes off unlimited
fastethernet 0/3 no off 1
: :
gigabitethernet 0/25 no off 300
gigabitethernet 0/26 yes off unlimited
port-channel 1 no off 200
port-channel 2 yes off unlimited
>
Display items
Table 19-1 Information displayed by executing the show ip dhcp snooping command
Item Meaning Displayed information
Switch DHCP snooping is The status of DHCP snooping Enable: Enabled
Disable: Disabled
Option allow untrusted Permission to receive option 82 on: Receiving the option is permitted.
off: Receiving the option is not permitted.
Verify mac-address Verification of the MAC address from
which DHCP packets are sent
on: The source MAC address is checked.
off: The source MAC address is not
checked.
VLANs List of VLANs on which DHCP
snooping is operating
nothing is displayed if there is no
VLANs.
Interface Interface name --