Chapter 26 IP Source Guard

open this screen, click Advanced Application > IP Source Guard > DHCP Snooping > Configure > VLAN.

Figure 135 DHCP Snooping VLAN Configure

The following table describes the labels in this screen.

Table 86 DHCP Snooping VLAN Configure

LABEL

DESCRIPTION

Show VLAN

Use this section to specify the VLANs you want to manage in the

 

section below.

 

 

Start VID

Enter the lowest VLAN ID you want to manage in the section

 

below.

 

 

End VID

Enter the highest VLAN ID you want to manage in the section

 

below.

 

 

Apply

Click this to display the specified range of VLANs in the section

 

below.

 

 

VID

This field displays the VLAN ID of each VLAN in the range

 

specified above. If you configure the * VLAN, the settings are

 

applied to all VLANs.

 

 

Enabled

Select Yes to enable DHCP snooping on the VLAN. You still have

 

to enable DHCP snooping on the Switch and specify trusted ports.

 

Note: If DHCP is enabled and there are no trusted ports,

 

DHCP requests will not succeed.

 

 

Option82

Select this to have the Switch add the slot number, port number

 

and VLAN ID to DHCP requests that it broadcasts to the DHCP

 

VLAN, if specified, or VLAN. You can specify the DHCP VLAN in the

 

DHCP Snooping Configure screen. See Section 26.5 on page

 

280.

 

 

Information

Select this to have the Switch add the system name to DHCP

 

requests that it broadcasts to the DHCP VLAN, if specified, or

 

VLAN. You can configure the system name in the General Setup

 

screen. See Chapter 8 on page 99. You can specify the DHCP

 

VLAN in the DHCP Snooping Configure screen. See Section

 

26.5 on page 280.

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ZyXEL Communications metrogigabit switch manual 284, Dhcp Snooping Configure screen. See .5 on
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metrogigabit switch specifications

ZyXEL Communications has long been a prominent player in the networking hardware industry, providing innovative solutions that cater to both business and consumer markets. Among their notable offerings is the Metrogigabit switch, a device designed to meet the high demands of modern networks.

The ZyXEL Metrogigabit switch is primarily aimed at service providers and large enterprises, recognizing the need for seamless connectivity in an increasingly digital world. This switch is engineered for scalability, enabling users to effortlessly expand their network as their operational needs grow. With support for high bandwidth, it is particularly suited for environments requiring extensive data traffic management, such as data centers and campus networks.

One of the standout features of the Metrogigabit switch is its high-density gigabit Ethernet ports, which provide a backbone for reliable data transmission. The switch typically supports multiple 10G SFP+ uplinks, ensuring fast and efficient connections to upstream devices. This capability allows users to configure their networks to handle large volumes of data quickly and without interruption.

In terms of technology, the Metrogigabit switch leverages advanced Layer 2 and Layer 3 functionalities. This includes features such as VLAN support for traffic segmentation, Quality of Service (QoS) for prioritizing mission-critical applications, and robust multicast management. These capabilities contribute to enhanced network efficiency and performance.

Another characteristic that sets the ZyXEL Metrogigabit switch apart is its built-in security features. The device is designed to protect network integrity through mechanisms like port security, access control lists, and advanced authentication protocols. This focus on security helps prepare businesses to counteract potential threats in a landscape where cyber attacks are increasingly sophisticated.

Moreover, the switch is equipped with a user-friendly management interface, which simplifies the process of monitoring and configuring network settings. This is complemented by support for SNMP and RMON, allowing network administrators to leverage tools for effective performance monitoring.

In summary, the ZyXEL Metrogigabit switch is an essential tool for organizations seeking robust performance, reliability, and security in their networking infrastructure. With its high-density ports, flexible configuration options, and comprehensive management features, it provides a strong foundation for building efficient and scalable networks. Whether for service providers or enterprises, this switch stands out as a reliable choice in the fast-evolving technological landscape.
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