Cisco 500 series Administration Manual page 396

Configuring DHCP
DHCP Configuration
STEP 1
STEP 2
STEP 3
STEP 4
Cisco 500 Series Stackable Managed Switch Administration Guide
• When DHCP Snooping is disabled for a VLAN, the binding entries that were
collected for that VLAN are removed.
• If the database is full, DHCP Snooping continue to forward packets but new
entries are not created. Note that if the IP source guard and/or ARP
inspection features are active, the clients that are not written in the DHCP
Snooping Binding database are not be able to connect to the network.
To add entries to the DHCP Snooping Binding database:
Click IP Configuration > DHCP > DHCP Snooping Binding Database. The
Snooping Binding Database
To see a subset of entries in the DHCP Snooping Binding database, enter the
relevant search criteria and click Go.
To add an entry, click Add. The Add DHCP Snooping Entry page is displayed.
Enter the fields:
• VLAN ID—VLAN on which packet is expected.
• MAC Address—MAC address of packet.
• IP Address—IP address of packet.
• Interface—Unit/Slot/Interface on which packet is expected.
• Type—The possible field values are:
Dynamic
- —Entry has limited lease time.
Static—
- Entry was statically configured.
• Lease Time—If the entry is dynamic, enter the amount of time that the entry
is to be active in the DHCP Database. If there is no Lease Time, check Infinite.)
Click Apply. The settings are defined, and the device is updated.
page is displayed.
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DHCP
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