Chapter 26 IP Source Guard

the bindings by snooping DHCP packets (dynamic bindings) and from information provided manually by administrators (static bindings). To open this screen, click Advanced Application > IP Source Guard.

Figure 130 IP Source Guard

The following table describes the labels in this screen.

Table 81 IP Source Guard

LABEL

DESCRIPTION

Index

This field displays a sequential number for each binding.

 

 

Mac Address

This field displays the source MAC address in the binding.

 

 

IP Address

This field displays the IP address assigned to the MAC address in

 

the binding.

 

 

Lease

This field displays how many days, hours, minutes, and seconds

 

the binding is valid; for example, 2d3h4m5s means the binding

 

is still valid for 2 days, 3 hours, 4 minutes, and 5 seconds. This

 

field displays infinity if the binding is always valid (for example,

 

a static binding).

 

 

Type

This field displays how the Switch learned the binding.

 

static: This binding was learned from information provided

 

manually by an administrator.

 

dhcp-snooping: This binding was learned by snooping DHCP

 

packets.

 

 

VID

This field displays the source VLAN ID in the binding.

 

 

Port

This field displays the port number in the binding. If this field is

 

blank, the binding applies to all ports.

 

 

26.3 IP Source Guard Static Binding

Use this screen to manage static bindings for DHCP snooping and ARP inspection. Static bindings are uniquely identified by the MAC address and VLAN ID. Each MAC address and VLAN ID can only be in one static binding. If you try to create a static binding with the same MAC address and VLAN ID as an existing static binding, the

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ZyXEL Communications metrogigabit switch manual IP Source Guard Static Binding, 274
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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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