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4-3 DHCP Snooping
The section describes how to configure the DHCP Snooping parameters of the switch. The
DHCP Snooping can prevent attackers from adding their own DHCP servers to the network.
4-3.1 Configuration
This section describes how to configure DHCP Snooping setting including：
Snooping Mode (Enabled and Disabled)
Port Mode Configuration (Trusted, Untrusted)
Web Interface
To configure DHCP Snooping in the Web interface:
1. Select “Enabled” in the DHCP Snooping Configuration Mode.
2. Select “Trusted” for the specific port in Port Mode Configuration.
3. Click Save.
Figure 4-3.1: The DHCP Snooping Configuration
Parameter description:
Snooping Mode :
Indicates the DHCP snooping mode operation. Possible modes are:
Enabled: Enable DHCP snooping mode operation. When DHCP snooping mode operation
is enabled, the DHCP request messages will be forwarded to trusted ports and only allow
reply packets from trusted ports.
Disabled: Disable DHCP snooping mode operation.
Port Mode :
Indicates the DHCP snooping port mode. Possible port modes are:
Trusted: Configures the port as trusted source of the DHCP messages.
Untrusted: Configures the port as untrusted source of the DHCP messages.
Buttons:
Save – Click to save changes.
Reset- Click to undo any changes made locally and revert to previously saved
values.