C
HAPTER
13
| Security Measures
DHCP Snooping
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DHCP
SNOOPING VLAN
CONFIGURATION
Use the IP Service > DHCP > Snooping (Configure VLAN) page to enable or
disable DHCP snooping on specific VLANs.
CLI REFERENCES
â—† "ip dhcp snooping vlan" on page 897
COMMAND USAGE
â—† 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.
â—† 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.
â—† 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.
PARAMETERS
These parameters are displayed:
◆ VLAN – ID of a configured VLAN. (Range: 1-4094)
◆ DHCP Snooping Status – Enables or disables DHCP snooping for the
selected VLAN. 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. (Default: Disabled)
WEB INTERFACE
To configure global settings for DHCP Snooping:
1. Click IP Service, DHCP, Snooping.
2. Select Configure VLAN from the Step list.
3. Enable DHCP Snooping on any existing VLAN.
4. Click Apply
Figure 226: Configuring DHCP Snooping on a VLAN
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