Installation guide

Configuring the Switch
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Configuring Ports for DHCP Snooping
Use the DHCP Snooping Port Configuration page to configure switch ports as
trusted or untrusted.
Command Usage
• A trusted interface is an interface that is configured to receive only messages from
within the network. An untrusted interface is an interface that is configured to
receive messages from outside the network or firewall.
• When DHCP snooping enabled both globally and on a VLAN, DHCP packet
filtering will be performed on any untrusted ports within the VLAN.
• When an untrusted port is changed to a trusted port, all the dynamic DHCP
snooping bindings associated with this port are removed.
• Set all ports connected to DHCP servers within the local network or firewall to
trusted state. Set all other ports outside the local network or firewall to untrusted
state.
Command Attributes
• Trust Status – Enables or disables port as trusted.
Web – Click DHCP Snooping, Information Option Configuration.
Figure 3-72 DHCP Snooping Port Configuration