Allied Telesis AT-9000/52, AT-9000/28 Overview, Static Versus Dynamic Addresses Intrusion Actions

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Chapter 14: Setting MAC Address-based Port Security

Overview

Static Versus

Dynamic

Addresses

Intrusion Actions

This feature lets you control access to the ports on the switch based on the source MAC addresses of the network devices. You specify the maximum number of source MAC addresses that ports can learn. Ports that learn their maximum number of addresses discard packets that have new, unknown addresses, preventing access to the switch by any additional devices.

For example, if you configure port 3 on the switch to learn five source MAC addresses, the port learns up to five address and forwards the ingress packets of the devices that belong to those addresses. If the port receives ingress packets that have source MAC addresses other than the five it has already learned, it discards those packets to prevent the devices from passing traffic through the switch.

The MAC addresses that the ports learn can be stored as either static or dynamic addresses in the MAC address table in the switch. Ports that store the addresses as static addresses do not learn new addresses after they have learned their maximum number. In contrast, ports that store the addresses as dynamic addresses can learn new addresses when addresses are timed out from the table by the switch. The addresses are aged out according to the aging time of the MAC address table.

The intrusion actions define what the switch does when ports that have learned their maximum number of MAC addresses receive packets that have unknown source MAC addresses. Intrusion actions are also called violation actions. The possible settings are:

Protect - Ports discard those frames that have unknown MAC addresses. No other action is taken. For example, if port 14 is configured to learn 18 addresses, it starts to discard packets with unknown source MAC addresses after learning 18 MAC addresses.

Restrict - This is the same as the protect action, except that the switch sends SNMP traps when the ports discard frames. For example, if port 12 is configured to learn two addresses, the switch sends a trap every time the port, after learning two addresses, discards a packet that has an unknown MAC address.

Shutdown - The switch disables the ports and sends SNMP traps. For example, if port 5 is configured to learn three MAC addresses, it is disabled by the switch to prevent it from forwarding any further traffic if it receives a packet with an unknown source MAC address, after learning three addresses. The switch also sends an SNMP trap.

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Contents Web Browser User’s Guide Copyright Page Page Contents 100 137 207 Figures Figures Preface Document Conventions Downloading Management Software and Web-based Guides Management Software Updates Contacting Allied TelesisAlliedWare Plus Version 2.1.2 Web Browser Interface ChapterManagement Sessions Web Manager Accounts AlliedWare Plus Version 2.1.2 Web Browser Interface Starting a Management Session Starting a Web Management Session Awplus# configure terminal Awplusconfig# http server Login Page is displayed. See Figure Page Starting a Management Session Page Selecting items from a Web What to Configure First Assigning a Name to the SwitchSetting System Time Adding a Management IP AddressSaving Your Changes Ending a Web Management Session Starting a Management Session Basic Switch Parameters Setting the System Date and Time Setting System Time Manually Click Apply Setting An Sntp or NTP Server Select the Network Time Settings tabBasic Switch Parameters Page Setting a Telnet or SSH Server System Services page is displayed. See Figure Setting a Remote Log Server Setting the Switch Information System Contact InformationBasic Switch Parameters Setting the Configuration File Displaying Setting the Active Configuration FileUploading a Configuration File Managing User Accounts User ManagementChanging a User Password Click Add UserClick Set Password Changing the User Privilege Click Delete User Rebooting a Switch Upgrading the Software Basic Switch Parameters Page Displaying System Information Page Basic Switch Parameters Setting Port Parameters Displaying the Port Parameters Web Port Numbering CLI Port NumberingPort Configuration Setting Port Parameters Page Changing the Port Settings Page Setting Port Parameters Page Displaying the Storm Control Settings Page Modifying the Storm Control Settings Storm Control SettingsPage Setting Port Parameters Setting Port Statistics Displaying Port Statistics Displaying Transmit Receive Port StatisticsDisplaying the Receive Statistics Setting Port Statistics Displaying Transmit Statistics Setting Port Statistics Displaying Interface Statistics Setting Port Statistics Clearing Port Statistics Setting Port Statistics Setting Port Mirroring Overview Displaying Port Mirroring Settings Setting Port Mirroring Assigning a Destination Port Assigning Port Mirroring Values Page Setting Port Mirroring Setting the Port Spanning Tree Protocol Overview Displaying Port Spanning Tree Protocol Settings Setting the Port Spanning Tree Protocol Modifying Port Spanning Tree Protocol Settings Auto Setting the MAC Address Displaying the MAC Address Displaying Unicast MAC AddressesDisplaying Multicast Addresses Setting the MAC Address Assigning a MAC Address Assigning an Unicast AddressAssigning a Multicast Address Multicast Mac Address101 Deleting a MAC Address Deleting a Multicast AddressDeleting a Unicast Address 103 Setting the MAC Address 104 Setting Lacp 106 Displaying Lacp Trunks Lacp Trunks108 Adding an Lacp Trunk Add Lacp Trunk110 Modifying an Lacp Trunk Modify Lacp Trunk112 Deleting an Lacp Trunk Setting Lacp 114 Setting Static Port Trunks 116 Displaying Static Trunk Settings Static Trunks118 Adding Static Trunks Add Static Trunk page is displayed. See Figure 121 Modifying the Static Trunk Settings Modify Static Trunk page is displayed. See Figure 124 Deleting Static Trunks Setting Static Port Trunks 126 Setting Port-based and Tagged VLANs Port-based VLANs Tagged VLANs Port Vlan IdentifierTagged and Untagged Ports Displaying VLANs 131 Adding an Vlan 133 Modifying VLANs 135 Deleting VLANs Setting Switch Spanning Tree Protocols 138 Displaying Switch Spanning Tree Protocol Settings Increment Bridge Priority 141 Modifying Switch Spanning Tree Protocol Settings Increment Bridge Priority 28672 61440 Setting Switch Spanning Tree Protocols 144 Setting Internet Group Management Protocol Igmp Snooping Setting Internet Group Management Protocol Igmp Snooping Displaying and Modifying Igmp Snooping Configuration 148 Clearing the Routers List 150 Disabling Igmp Snooping Displaying the Routers List Displaying the Hosts List 154 Setting MAC Address-based Port Security Static Versus Dynamic Addresses Intrusion Actions 157 Displaying the MAC Address-based Port Security Settings Port. This is the default setting Modifying the MAC Address-based Port Security Settings Modify MAC Based Port Security161 Disabling MAC Address-based Port Security Settings Setting Radius and TACACS+ Clients Remote Manager Accounts Configuring TACACS+ RadiusSelecting the Authentication Method 167 Configuring the Authentication Server Configuring aServer 169 Configuring a Radius Server Authentication Server Configuration Page with Radius TabRadius Server Configuration 172 Deleting an Authentication Server Setting Radius and TACACS+ Clients 174 Setting 802.1x Port-based Network Access 176 Enabling 802.1x Port-based Authentication on the Switch Configuring 802.1x Port-based Authentication Modify 802.1x Authentication Page Expanded Timeouts Same VID as the supplicant who initially Mode requires that all clients log on Displaying the 802.1x Authentication Port Settings 1x ViewDisabling 802.1x Port-based Authentication on the Switch Disabling 802.1x Port-based Authentication on a Port Setting 802.1x Port-based Network Access 186 Setting IPv4 and IPv6 Management Feature Description Supported by IPv4 Address IPv6 Address IP Management Guidelines Assigning an IPv4 Address Assigning a Static IPv4 Address191 Assigning an Dhcp IPv4 Address 193 Assigning an IPv6 Address 195 Displaying IP Addresses Deleting IP Addresses Deleting an Dhcp IPv4 AddressDeleting an IPv4 Static Address Deleting an IPv6 Address Setting Lldp and LLDP-MED 200 Setting Lldp Locations Creating a Civic LocationLldp Civic Location Click Add Following fields are displayed Lldp Civic Location Page- Modify Creating a Coordinate Location 206 Creating an Elin Location Lldp Elin Location 209 Configuring Lldp and LLDP-MED Setting the BasicLldp Configuration page is displayed. See Figure Setting Lldp Port Assignments Lldp Port Config page is displayed. See Figure Assigning Port Locations 215 Enabling Lldp TLV Lldp TLV Click Edit next to the port that you want to modify Modify Lldp TLV page is displayed. See Figure AAAA03 Epsr Enabling Lldp MED TLVModify Lldp Med TLV 222 Displaying Lldp Neighbor Information 224 Displaying Lldp Statistics Lldp Statistics Page with Summary Tab 227 Displaying Lldp Locations Displaying Civic LocationsDisplaying Coordinate Locations Displaying Elin Locations 231 Displaying Lldp and LLDP-MED Settings Displaying Basic Lldp ConfigurationDisplaying Lldp Port Assignments Displaying Port Locations Displaying Lldp TLV 235 Displaying LLDP-MED TLV237 Disabling Lldp on the Switch Setting sFlow Packet Counters Ingress Packet SamplesSFlow Collectors Guidelines Enabling sFlow on the Switch From the Discovery & Monitoring tab, select sFlowConfiguring sFlow on a Port SFlow Port Modify244 Specifying an sFlow Collector Sflow Page with Collectors Tab Click AddSflow Collector page is displayed. See Figure Displaying the sFlow Settings End of Document
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AT-9000/52, AT-9000/28SP, AT-9000/28 specifications

The Allied Telesis AT-9000/28 is a versatile and robust network switch designed for organizations seeking to enhance their networking capability. This Layer 2 managed switch delivers a high degree of performance and reliability, making it an ideal choice for businesses that require a seamless network experience.

One of the main features of the AT-9000/28 is its 28 ports, which include 24 Fast Ethernet ports and 4 Gigabit Ethernet uplink ports. This allows for flexible network configuration and scalability, accommodating both wired and wireless devices efficiently. The switch also supports auto-negotiation and auto-MDI/MDI-X, which simplifies installation and connectivity by automatically detecting and configuring the appropriate settings.

The AT-9000/28 employs advanced switching technologies, such as IEEE 802.1Q VLAN tagging, which enables the segregation of traffic for improved security and performance. This feature is crucial for businesses that require data isolation between different departments or user groups. In addition, the switch supports quality of service (QoS) protocols, allowing for traffic prioritization. This is particularly beneficial for organizations that handle multimedia applications or VoIP services that demand reliable bandwidth.

Another significant characteristic of the AT-9000/28 is its support for port mirroring. This capability is essential for network monitoring and troubleshooting, as it allows administrators to track and analyze network traffic efficiently. Furthermore, the switch supports multiple user authentication methods, including RADIUS and TACACS+, thus enhancing network security.

The AT-9000/28 is built with energy efficiency in mind, featuring Energy Efficient Ethernet (EEE) technology. This reduces power consumption during periods of low traffic without compromising performance, which aids in lowering overall operational costs.

In terms of management, the AT-9000/28 offers versatile management options, including a web-based GUI, Command Line Interface (CLI), and SNMP support. This flexibility enables network administrators to configure, monitor, and troubleshoot the switch easily.

Overall, the Allied Telesis AT-9000/28 is a reliable switch well-suited for a variety of network environments. Its combination of performance, security features, and energy efficiency makes it an excellent choice for organizations looking to optimize their network infrastructure. With robust capabilities and advanced technologies, the AT-9000/28 stands out as a valuable addition to any networking setup.
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