Interlogix NS3500-28T-4S User Manual - Manual (Page 256)

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4.9.7.3 VLAN Setting
Command Usage
 When DHCP snooping is enabled globally on the switch, and enabled on the specified VLAN, DHCP packet filtering
will be performed on any untrusted ports within the VLAN.
 When the DHCP snooping is globally disabled, DHCP snooping can still be configured for specific VLANs, but the
changes will not take effect until DHCP snooping is globally re-enabled.
 When DHCP snooping is globally enabled, and DHCP snooping is then disabled on a VLAN, all dynamic bindings
learned for this VLAN are removed from the binding table.
The DHCP Snooping VLAN Setting screens in Figure 4-9-35 & Figure 4-9-36 appear.
Figure 4-9-35 DHCP Snooping VLAN Setting Page Screenshot
The page includes the following fields:
Object Description
 VLAN List Indicates the ID of this particular VLAN.
 Status Indicates the DHCP snooping mode operation. Possible modes are:
 Enabled: Enable DHCP snooping mode operation.
When enable DHCP snooping mode operation, the request
DHCP messages will be forwarded to trusted ports and only
allowed reply packets from trusted ports.
 Disabled: Disable DHCP snooping mode operation.
Buttons
: Click to apply changes.