Configure Dhcp Snooping - NETGEAR GC110 User Manual

Insight Managed 8-Port Gigabit Ethernet Smart Cloud Switch with 2 SFP Fiber Ports
The default password is password. If you added the switch to a network on the Insight
app before and you did not yet change the password through the local browser interface,
enter your Insight network password.
The System Information page displays.
5. Select System> Services > DHCP L2 Relay > DHCP L2 Relay Interface Statistics.
The DHCP L2 Relay Interface Statistics page displays.
6. To display information for all ports and LAGs, click the All link.
7. Select one or more interfaces by taking one of the following actions:
• To configure a single interface, select the check box associated with the port, or type
the port number in the Go To Interface field and click the Go button.
• To configure multiple interfaces with the same settings, select the check box
associated with each interface.
• To configure all interfaces with the same settings, select the check box in the heading
row.
The following table describes the nonconfigurable data that is displayed.
Field
Interface
Untrusted Server
Messages With Opt82
Untrusted Client
Messages With Opt82
Trusted Server Messages
Without Opt82
Trusted Client Messages
Without Opt82
8. To refresh the page with the latest information about the switch, click the Refresh button.
9. To clear all interfaces statistics, click the Clear button.

Configure DHCP Snooping

DHCP snooping is a useful feature that provides security by filtering untrusted DHCP
messages and by building and maintaining a DHCP snooping binding table. An untrusted
message is a message that is received from outside the network or firewall and that can
cause traffic attacks within your network. The DHCP snooping binding table contains the
MAC address, IP address, lease time, binding type, VLAN number, and interface information
that corresponds to the local untrusted interfaces of a switch. An untrusted interface is an
interface that is configured to receive messages from outside the network or firewall. A
trusted interface is an interface that is configured to receive only messages from within the
network.
Description
The interface from which the DHCP message is received.
The number of DHCP message with option82 received from an untrusted server.
The number of DHCP message with option82 received from an untrusted client.
The number of DHCP message without option82 received from a trusted server.
The number of DHCP message without option82 received from a trusted client.
Configure System Information
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