Chapter 9
| General Security Measures
DHCPv4 Snooping
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show ip dhcp
snooping
This command shows the DHCP snooping configuration settings.
Command Mode
Privileged Exec
Example
Console#show ip dhcp snooping
Global DHCP Snooping Status: disabled
DHCP Snooping Information Option Status: disabled
DHCP Snooping Information Option Sub-option Format: extra subtype included
DHCP Snooping Information Option Remote ID: MAC Address (hex encoded)
DHCP Snooping Information Option Remote ID TR101 VLAN Field: enabled
DHCP Snooping Information Option TR101 Board ID: none
DHCP Snooping Information Policy: replace
DHCP Snooping is configured on the following VLANs:
Verify Source MAC-Address: enabled
Circuit-ID Circuit-ID Circuit-ID
Interface Trusted Max-Number Mode Value TR101 VLAN Field
--------- ------- ---------- --------------- ------------ ----------------
Eth 1/1 No 16 VLAN-Unit-Port --- enabled
Eth 1/2 No 16 VLAN-Unit-Port --- enabled
Eth 1/3 No 16 VLAN-Unit-Port --- enabled
Eth 1/4 No 16 VLAN-Unit-Port --- enabled
Eth 1/5 No 16 VLAN-Unit-Port --- enabled
.
.
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show ip dhcp
snooping binding
This command shows the DHCP snooping binding table entries.
Command Mode
Privileged Exec
Example
Console#show ip dhcp snooping binding
MAC Address IP Address Lease(sec) Type VLAN Interface
----------------- --------------- ---------- -------------------- ---- ------
11-22-33-44-55-66 192.168.0.99 0 Dynamic-DHCPSNP 1 Eth 1/5
Console#
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