CONFIGURING THE SWITCH

CLI – This shows that the entries in the mask override the precedence in which the rules are entered into the ACL. In the following example, packets with the source address 10.1.1.1 are dropped because the “deny

10.1.1.1255.255.255.255” rule has the higher precedence according the “mask host any” entry.

Console(config)#access-list ip

standard A2

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Console(config-std-acl)#permit

10.1.1.0 255.255.255.0

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Console(config-std-acl)#deny 10.1.1.1 255.255.255.255

 

Console(config-std-acl)#exit

mask-precedence in

 

Console(config)#access-list ip

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Console(config-ip-mask-acl)#mask host any

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Console(config-ip-mask-acl)#mask 255.255.255.0 any

 

Console(config-ip-mask-acl)#

 

 

Configuring a MAC ACL Mask

This mask defines the fields to check in the packet header.

Command Usage

You must configure a mask for an ACL rule before you can bind it to a port.

Command Attributes

Source/Destination Address Type – Use “Any” to match any address, “Host” to specify the host address for a single node, or “MAC” to specify a range of addresses. (Options: Any, Host, MAC; Default: Any)

Source/Destination Bitmask – Address of rule must match this bitmask.

VID Bitmask – VLAN ID of rule must match this bitmask.

Ethernet Type Bitmask – Ethernet type of rule must match this bitmask.

Packet Format Mask – A packet format must be specified in the rule.

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SMC Networks SMC6824M manual 110, Configuring a MAC ACL Mask, This mask defines the fields to check in the packet header

SMC6824M specifications

The SMC Networks SMC6824M is a robust and reliable managed switch that caters to the needs of small to mid-sized businesses, as well as enterprise environments. This switch is designed to provide enhanced performance, scalability, and security for network infrastructures that require efficient traffic management and comprehensive control.

One of the key features of the SMC6824M is its 24 10/100/1000BASE-T ports, which offer lightning-fast Ethernet connectivity. These ports are capable of auto-negotiation, allowing devices to automatically adjust their settings for optimal performance, making it easier to integrate various hardware into existing networks. Additionally, the switch includes four Gigabit SFP slots for fiber uplinks, which allow for extended connectivity options and improved network design.

The SMC6824M employs advanced Layer 2 and Layer 3 functionalities, giving network administrators the tools they need to manage their networks effectively. It supports features like VLAN (Virtual Local Area Network) support and Quality of Service (QoS), ensuring efficient bandwidth management and enhanced performance for critical applications. Through VLAN segmentation, it can isolate network traffic for different departments or functions, enhancing security and reducing congestion.

The switch also offers comprehensive network management capabilities through SNMP (Simple Network Management Protocol) and a web-based interface, enabling easy configuration, monitoring, and troubleshooting. The SMC6824M includes support for port mirroring, which is important for diagnostics and monitoring network performance.

Another significant characteristic of the SMC6824M is its redundancy features, which include IEEE 802.1d Spanning Tree Protocol (STP) to prevent loops and provide network resilience. This is essential for maintaining continuous operation, especially in dynamic environments where network availability is critical.

In terms of security, the SMC6824M supports 802.1X port-based authentication, ensuring that only authorized devices gain access to the network. This feature is crucial for protecting sensitive data and maintaining the integrity of the network.

Overall, the SMC Networks SMC6824M is a versatile and feature-rich managed switch that delivers the performance and flexibility required to support growing networks. Its combination of layer management, security features, and user-friendly interface makes it an excellent choice for organizations looking to enhance their network infrastructure.