Netgear GS752TXS Technical Information download pdf (Page 75)

Chapter 2: Configuring System Information | 75

GS752TXS Smart Switch Software Administration Manual

Services — 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.

DHCP snooping acts like a firewall between untrusted hosts and DHCP servers. It also

provides way to differentiate between untrusted interfaces connected to the end-user and

trusted interfaces connected to the DHCP server or another switch.

From the Services link, you can access the following pages:

• Global Configuration on page 75

• Interface Configuration on page 76

• Binding Configuration on page 77

• Persistent Configuration on page 79

• Statistics on page 79

Global Configuration

To access the DHCP Snooping Global Configuration page, click System Services  DHCP

Snooping

 Global Configuration.

LLDP Unknown TLVs

Type Displays the unknown TLV type field.

Value Displays the unknown TLV value field.

Field Description

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Netgear GS752TXS Technical Information Page 75