LevelOne GTL-2691 - Manual (Page 400)

C HAPTER 13 | Security Measures
DHCP Snooping
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4. Click Apply
Figure 209: Configuring Global Settings for DHCP Snooping
DHCP S NOOPING
VLAN
C ONFIGURATION
Use the IP Service > DHCP > Snooping (Configure VLAN) page to enable or
disable DHCP snooping on specific VLANs.
CLI R EFERENCES
◆ "ip dhcp snooping vlan" on page 952
C OMMAND U SAGE
◆ 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.
P ARAMETERS
These parameters are displayed:
◆ VLAN – ID of a configured VLAN. (Range: 1-4093)
◆ 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)