Configuring Device Security
Defining DHCP Snooping
Cisco Small Business SFE/SGE Managed Switches Administration Guide
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4
-
LAG
— Queries the VLAN database by LAG number.
STEP 3
Click Query. The results appear in the
Query Results
table.
Query Results
The Query Results table contains the following fields:
•
MAC Address — Indicates the MAC address found during the query.
•
VLAN ID — Displays the VLAN ID to which the IP address is attached in the
DHCP Snooping Database.
•
IP Address — Indicates the IP address found during the query.
•
Interface — Indicates the specific interface connected to the address found
during the query.
•
Type — Displays the IP address binding type. The possible field values are:
-
Static
— Indicates the IP address is static.
-
Dynamic
—
I
ndicates the IP address is defined as a dynamic address in the
DHCP database.
-
Learned
— Indicates the IP address is dynamically defined by the DHCP
server. (This field appears as a read-only field in the table).
•
Lease Time — Displays the lease time. The Lease Time defines the amount of
time the DHCP Snooping entry is active. Addresses whose lease times are
expired are deleted from the database. The possible values are 10 –
4294967295 seconds. In the
Add DHCP Snooping Page
, select Infinite if the
DHCP Snooping entry never expires.
STEP 4
Define the fields.
STEP 5
Click
Apply
. The bound address is added to the database and the device is
updated.
STEP 6
Click
Delete
to delete the data from the
Query Results
Table.
STEP 7
To remove dynamic addresses from the
Query Results
table, click Clear Dynamic.
