Mask Bytes, Source/Dest | RadioLAN Campus BridgeLINK guide

Mask Bytes

As an alternative to placing wildcards (00) in the MAC Address field, the Mask Bytes column allows you to select which octets in the MAC Address field will be read by the CPU (see Figure 37).

Entering ff into a mask bytes octet instructs the CPU to allow only MAC octets with a value matching the same location in the MAC Address field to pass. The CPU rejects any other entry in the octet position.

Entering a 00 into a mask bytes octet instructs the CPU to “mask” the octet. When the octet is masked, the CPU allows any entry to pass.

Assigned to a			Assigned by a
Manufacturer			Manufacturer

Byte Position: 1 2 3 4 5 6

MAC Address: 00 A0 D4 00 00 00

Mask Bytes: ff ff ff 00 00 00

ff= the byte in this position must match 00 = allow any digit in this section

Figure 37: Working with Mask Bytes

Entering an ff into a mask bytes octet, and a 00 in the same octet position of the MAC Address instructs the CPU to allow an entry matching only 00 to pass.

Source/Dest.

The Source/Dest. column allows you to specify whether the action upon packets will occur if that node is sending or receiving packets.

890-007 Rev. A 01/28/99

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© 1999 RadioLAN, Inc.

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RadioLAN Campus BridgeLINK manual Mask Bytes, Source/Dest

Contents

Wireless Local Area Network Campus BridgeLINK User Guide FCC Remarks Disclaimer Manual Conventions Trademark Disclosures Installing the CPU Using the Campus BridgeLINK Manager Recording Important System Information Getting Technical Support 120 890-007 Rev. a 01/28/99 Introduction 890-007 Rev. a 01/28/99 LED Indicators Campus BridgeLINK SystemCampus BridgeLINK Processor Unit CPU MDI/MDI-X Switch 10BaseT LED Indicators 10BaseT Port JackLocal Port Jack Mounting Bracket CRM Port CRM Companion Radio Module Companion Radio Module CRM Directional Antenna Power Transformer Low-Loss RF Cable Antenna Cable Typical Campus BridgeLINK Application Typical Campus BridgeLINK Application Linking Networks in Two Locations Determining the Distance between Buildings Quick Configuration Initial IP Address Setup Temporarily Connect the CPU Configuration Disk Using the IP Assign Utility to Assign the CPU’s IP Address Tools You Will Need Installing the CPU Locating the CPU Locating the CPU Closely to Network, Power, and the Antenna Mounting the CPU Connecting the Antenna Cable to CRM Inserting the CRM into the Bracket Marking Screw Locations Connecting the Network Acceptable Ground Source Grounding Considerations Attaching the Directional to a Typical Mount Brief Word About Safety Minimum Height from Ground Choosing the Best Mounting Height Adjusting the Antenna’s Direction Sighting Each Campus BridgeLINK AntennaTools You Will Need Eyeball the Direction Sighting Procedure Power Connection Sequence Apply Power to the CPU Adding Security to the Wireless Network Local ManagementDual Remote Management Html and Snmp Browser Requirements System Requirements CPU Web Site Using the Campus BridgeLINK Manager Logging onto Campus BridgeLINK Manager Browsing the Network for the CPU Enter Password Product IDEnter User Name Campus BridgeLINK Manager Main Menu Campus BridgeLINK Manager Site Layout Campus BridgeLINK Manager Main ∙ Explicit Address check box Aiming the Directional AntennasStart button Save Distance Parameter button Setting the Estimated Distance between Antennas Setting the Frame SizeSelecting the Distant CPU’s Address Starting and Stopping the Test User Logon Name Fields Setting Up Security Features Setting Up Snmp Capabilities Administration Parameters Use DefaultReload System Name System ContactSystem Location IP Parameters IP Parameters Default Gateway IP Address IP AddressSubnet Mask Disabled Dhcp SupportAcquire System IP Only Acquire IP and Download System Software Acquire IP, Download System Software and Save itDhcp Server IP Address Authentication Trap check User AuthenticationSnmp Parameters Cold Start Enable Authentication Trap Read CommunityWrite Community Configure Snmp Host Configuring Snmp Managers for the CPU Setting Access Rights for Snmp Managers Directing Traps to Manager StationsDirecting the System Log to Manager Stations Point-to-Point Mode Setting the CPU’s Mode of Operation ∙ Encryption Key field Data Encryption Enabled Check Box Securing the CPU with Data EncryptionEncryption Key and Retype Encryption Key Fields Bridging the Link and 10BaseT Networks Getting to the Port Parameters Menu MAC Address Filter 10BaseT Port Parameters Block IP Packets Edit Button Block NetBIOS Packets Block IPX PacketsBlock NetBEUI Packets Radio Port Parameters Subnet ID Port Name Console Parameters Setting the Baud Rate for the Local Port Managing Packet Flow Through the CPU MAC Address Source/Dest Mask Bytes Adding MAC Filters Accept/Reject Deleting MAC Filters Modifying MAC Filters Bridging Networks Spanning Tree Parameters Bridge Priority 0-65,535 Hello Time Forward Delay Time Max. Age Time Port Path Cost 1-65,535 Port Priority Interrogating the System for Performance Information 10BaseT Port Statistics Checking 10BaseT Port Statistics CRC Error Packets Total Error PacketsCollision Error Packets Total Packets Transmitted Runt Packets Overrun Packets Radio Port Statistics Checking Radio Port Wireless Link Statistics Average Transmit Rate Packets/Sec Packet Transmission Total Retransmission Packet ReceptionAverage Receive Rate Packets/Sec Upgrading System Software Software Upgrade from file System Software Filename Download Button Tftp Server IP Address Configuration Changes Saving or Rejecting Configuration Setting Changes Save All Changes and Reset Reload Last Saved ConfigurationReset Configuration to Factory Default Reset Resetting the CPU Recording Important System Information Boot Software Version Default Gateway IP AddressProduct Name System Name 890-007 Rev. a 01/28/99 Viewing the System Log Error MessageTask Time Sec Managing the CPU Locally Serial Port Adapter Cable Pin-outs Signal Description DB-9F RJ11 Hot Keys CPU Local Management Logon Menu Logging onto the CPU Configuration Screen Serial Number Using the Main Menu System FeaturesNode Discovery Diagnostics System ConfigurationSystem Statistics System Status Administration Parameters Working with the System Configuration Menu IP Parameters Spanning Tree ParametersPort Parameters Snmp Parameters Software Upgrade Parameters Selecting this item Configuration Changes Access SecuritySystem Operation Mode Data Encryption User Password Configuration Manager Menu ItemsMenu Name Menu Item Refer to User Logon Name System Location Menu Name Menu Item Refer to System ContactIP Address Subnet Mask Dhcp Operation Mode Menu Name Menu Item Refer to Default Gateway IPAddress Dhcp Server IP Address Dhcp Server IP Address on Enable Trap Receiving Managing Host AccessManaging Host IP Address Right Point-to-Point Mode ReceivingAdd this Managing Host 10BaseT Port Parameters Data Encryption Enabled CheckMenu Radio Port Parameters Menu Block MAC Packets Block NetBIOS PacketsEdit MAC Filters Block IP Packets List all Filters Configured Packet When SatisfiedSource or Destination Address Filtering Max. Age Time Forward Delay TimePort Priority Port Path Cost 1-65,535 Tftp Server IP Address Tftp Server IP Address on Download Mode Menu Name Menu Item Refer to System Software Filename Save All ConfigurationPerform Download Changes Reset All Configuration ConfigurationsPing Destination Ping Frame Size Worst Menu Name Menu Item Refer to BestPerform Ping System Information Problem No traffic for anyone Indicators Problem Retransmissions are excessive Problem Radio Range seems less than it should be Glossary Access Point Agent Client Station Dhcp Server Domain Gateway IP Address MAC Address Manager Node PacketsRouting Subnet Mask Power LED IndicatorsFault LED 10BaseT Port LEDs Status LEDs MDI/MDI-X Switch 10BaseT connector Connectors Serial Port Connector Electrical Specifications Network ProtocolStandards Support Environmental Specifications Physical SpecificationsDimensions Weight Electromagnetic Emissions Safety Agency Approvals Getting Technical Support Index 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 890-007 Rev. a 01/28/99 RadioLAN