4 Command Line Interface

Related Commands

permit, deny (MAC ACL) (4-98) mac access-group (4-99) show mac access-list (4-99)

permit, deny (MAC ACL)

This command adds a rule to a MAC ACL. The rule filters packets matching a specified MAC source or destination address (i.e., physical layer address), or Ethernet protocol type. Use the no form to remove a rule.

Syntax

[no] {permit deny}

{any host source source address-bitmask}

{any host destination destination address-bitmask} [vid vid [vid-end]] [ethertype protocol [protocol-end]]

Note:- The default is for Ethernet II packets.

any – Any MAC source or destination address.

host – A specific MAC address.

source – Source MAC address.

destination – Destination MAC address range with bitmask.

address-bitmask17– Bitmask for MAC address (in hexidecimal format).

vid – VLAN ID. (Range: 1-4094)

vid-end– Upper bound of VID range. (Range: 1-4094)

protocol – A specific Ethernet protocol number. (Range: 0-65535)

protocol-end– Upper bound of protocol range. (Range: 0-65535)

Default Setting

None

Command Mode

MAC ACL

Command Usage

New rules are added to the end of the list.

The ethertype option can only be used to filter Ethernet II formatted packets.

A detailed listing of Ethernet protocol types can be found in RFC 1060. A few of the more common types include the following:

-0800 - IP

-0806 - ARP

-8137 - IPX

17.For all bitmasks, “1” means care and “0” means ignore.

4-98

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LevelOne GSW-2692 manual Permit, deny MAC ACL, Syntax No permit deny

GSW-2692 specifications

The LevelOne GSW-2692 is an advanced Layer 2 Gigabit Ethernet switch that is designed to cater to the networking needs of both small and medium-sized enterprises. Highly regarded for its reliability and performance, the GSW-2692 offers 24 Gigabit Ethernet ports, enabling seamless and high-speed data transfers across connected devices. With its robust design and versatile capabilities, this switch has earned its place as an essential component in modern IT infrastructure.

One of the standout features of the GSW-2692 is its extensive support for advanced networking technologies. The switch includes support for IEEE 802.1Q VLAN tagging, which allows users to create separate virtual networks for improved traffic management and enhanced security. By segregating network traffic, businesses can optimize bandwidth usage and reduce congestion, contributing to overall increased network performance.

Additionally, the GSW-2692 supports Spanning Tree Protocol (STP) and Rapid Spanning Tree Protocol (RSTP), ensuring loop-free network topology. This capability is crucial in larger networking environments where multiple switches are interconnected, as it prevents broadcast storms and enhances network resilience. The switch also includes features such as port mirroring, which provides administrators with the capability to monitor network traffic in real-time for troubleshooting and analysis.

Power over Ethernet (PoE) support is another significant advantage of the GSW-2692. With PoE functionality, it enables the switch to deliver electrical power along with data to connected devices such as IP cameras, VoIP phones, and wireless access points, eliminating the need for additional power sources and simplifying installations.

In terms of physical characteristics, the LevelOne GSW-2692 is designed for efficient heat dissipation and features a fanless design, which ensures silent operation. Its desktop or rack-mountable options make it flexible for various installation environments. The switch also features a web-based management interface, which simplifies the configuration and monitoring processes, allowing for intuitive management of network settings.

Overall, the LevelOne GSW-2692 stands out as a feature-rich, reliable, and high-performance networking solution that meets the demands of modern enterprises. Its combination of advanced technologies, scalability, and ease of use makes it an excellent choice for businesses looking to enhance their network infrastructure.