Allied Telesis AT-S95 WEB - Manual (Page 95)

Configuring DHCP Snooping
Page 95
– Disable — Disables verifying that an untrusted port source MAC address matches the client’s MAC
address.
• Backup Database — Indicates if the DHCP Snooping Database is enabled. The possible field values are:
– Enable — Enables storing allotted IP addresses in the DHCP Snooping Database.
– Disable — Disables storing allotted IP addresses in the DHCP Snooping Database. This is the default
value.
• Database Update Interval — Indicates how often the DHCP Snooping Database is updated. The possible
field range is 600 – 86400 seconds. The field default is 1200 seconds.
• DHCP Option 82 Insertion — DHCP Option 82 attaches authentication messages to the packets sent to
DHCP Server via TCP/IP network. The option permits network administrators to limit address allocation to
authorized hosts only. This permits network administrators to limit address allocation authorized hosts. The
possible field values are:
– Enable — Enables DHCP Option 82 Insertion on the device.
– Disable — Disables DHCP Option 82 Insertion on the device. This is the default value.
2. Define the fields.
3. Click Apply. The DHCP Snooping configuration is defined and the device is updated.
4. Click Save Config on the menu to save the changes permanently.
Defining DHCP Snooping on VLANs
The VLAN Settings Page allows network managers to enable DHCP snooping on VLANs. To enable DHCP
Snooping on a VLAN, ensure DHCP Snooping is enabled on the device.