Linksys SLM2048, SLM248P, SLM248G, SLM224P, SLM2024 Security IP Access List, Security Storm Control

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Chapter 4

Configuration Using the Web-based Utility

Security > IP Access List

Use the IP Access List (also known as Management Access List) screen to specify IP addresses that are to be allowed to manage the device, using an IP address and wildcard mask.

Security > IP Access List

IP Address  Enter the IP address to be allowed.

Wildcard Mask  Enter the IP address wildcard mask. Wildcard masks specify which bits are used and which bits are ignored. A wild card mask of 255.255.255.255 indicates that no bit is important. A wildcard of 0.0.0.0 indicates that all the bits are important. For example, if the source IP address is 149.36.184.198 and the wildcard mask is 255.36.184.00, the first eight bits of the IP address are ignored, while the last eight bits are used.

Add to List  Click this button to save the IP address and Wildcard Mask. The information will appear in the list at the bottom of the screen.

The bottom portion of the IP Access List screen displays the current IP access list, where each entry consists of an IP Address and Wildcard Mask. To delete an entry from the list, select it and click Delete.

Click Save Settings to apply the changes, or Cancel Changes to cancel the changes.

Security > Storm Control

The Storm Control screen is used to configure broadcast and multicast storm control.

Security > Storm Control

Storm Control enables limiting the amount of Multicast and Broadcast frames accepted and forwarded by the Switch. A Broadcast Storm results when an excessive amount of broadcast messages is simultaneously transmitted across a network by a single port. Forwarded message responses are heaped onto the network, straining network resources or causing the network to time out.

To enable Storm Control on a port, you specify the packet type (broadcast/multicast) and maximum transmission rate. The system measures the incoming Broadcast and Multicast frame rates separately on each port and discards frames when the rate exceeds the specified maximum.

Interface  Indicates the interface from which storm control is enabled.

•Port  Select the port from the drop-down menu.

Broadcast Control  Select the checkbox to apply Broadcast control on the selected interface. Broadcast control limits the amount of Broadcast packet types to be forwarded. The default is not selected (disabled).

Mode  Specifies the Broadcast mode currently enabled on the device. The possible values are:

•Multicast & Broadcast  Counts Broadcast and Multicast traffic together.

•Broadcast Only  Counts only Broadcast traffic.

Rate Threshold  The maximum rate (packets per second) at which unknown packets are forwarded. The ranges are 70 kbps to 100 Mbps for FE ports, and 3.5 to 100 Mbps for GE ports. The default value is 3500 kbps.

The Update button adds the Storm Control settings to the Storm Control table at the bottom of the screen.

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Contents Business Series Smart Gigabit Ethernet Switch About This Guide About This GuideIcon Descriptions Online ResourcesTable of Contents Table of Contents Appendix D Warranty and Regulatory Information Appendix B Glossary Appendix C SpecificationsAppendix E Contact Information Chapter Introduction IntroductionChapter Product Overview Product OverviewSLM2048 Back PanelSLM2024 SLM248G SLM248P SLM224G SLM224P Chapter Installation InstallationPre-Installation Considerations Placement OptionsDesktop Placement Hardware InstallationRack-Mount Placement Uplinking the Switch WithSetup Chapter Configuration Using Web-based UtilitySetup Summary Setup Network Settings Device InformationSystem Information IdentificationSetup Time IP ConfigurationLocal Time Daylight SavingPort Configuration Port Management Port SettingsPort Management Port Management Link Aggregation LAG Configuration Port Management PoE Power Settings Port Management LacpGlobal Parameter Port PriorityVlan Management Port Settings Vlan ManagementVlan Management Create Vlan Vlan Management Port to VlanVlan Management Vlan to Port Port The number of the port being configuredJoin Vlan to Port Statistics Statistics Interface StatisticsInterface Ethernet-likeSecurity 802.1x Settings Setting TimerSecurity ParametersSecurity Port Security Security IP Access List Security Storm ControlIP Address Enter the IP address to be allowed Broadcast Only Counts only Broadcast trafficSecurity Radius QoS CoS Settings CoS SettingsCoS Default QoSQoS Dscp Settings QoS Queue SettingsQoS Basic Mode Global Setting Spanning TreeSpanning Tree STP Status Spanning Tree Global STPBridge Settings Spanning Tree STP Port SettingsSpeed Displays the speed at which the port is operating Vlan Igmp Settings MulticastMulticast Igmp Snooping Multicast Bridge MulticastMulticast Bridge Multicast Forward All Admin Admin User AuthenticationUser Authentication Local User EditAdmin Static Address Admin Dynamic AddressQuery Secure The entry is defined for locked portsAdmin Port Mirroring Admin Save ConfigurationAdmin Firmware Upgrade Admin RebootAdmin Factory Default Click the Reboot button, then click OK to confirmAdmin Memory Logs Admin LoggingAdmin Flash Logs Logout If you select Yes, a confirmation screen appearsGigabit Ethernet Appendix a About Gigabit Ethernet Fiber Optic CablingFiber Optic Cabling Appendix B Glossary GlossaryGlossary Packet a unit of data sent over a network Mail protocol on the InternetAppendix B Specifications Appendix C SpecificationsSLM2024/SLM2048 Power Internal Power Certification Connectors for 10BASE-TButtons Reset Cabling Type UTP CAT 5 or better for UL, cUL, CE mark, CBUnit Weight 39 lb 2.9 kg83 lb 3.1 kg 28 lb 3.3 kgAppendix D Warranty and Regulatory Information Limited WarrantySafety Notices FCC StatementIndustry Canada Statement Règlement d’Industry CanadaDansk Danish Miljøinformation for kunder i EU Appendix D Norsk Norwegian Miljøinformasjon for kunder i EU Appendix D Appendix E Contact Information
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