Configure as an Ethernet Bridge | Black Box LR1530A-R3 instruction

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Configure as an Ethernet Bridge

An Ethernet bridge intelligently forwards LAN traffic to remotely connected LANs across the Wide Area Network (WAN).

WAN connection

LAN #1

LAN #2

Figure 2 - 3 Bridged Local Area Networks

Ethernet bridges simply forward information based on Ethernet MAC addresses. If a LAN packet is destined for a device located on a remote LAN, the bridge will forward that packet to the remote LAN. If a LAN packet is destined for a device located on the local LAN, the bridge will ignore the packet.

Ethernet bridges also communicate to each other using what is called the Spanning Tree Protocol (STP). STP is used to prevent loops in a network which cause LAN traffic to be re-broadcast again and again causing network congestion.

The router is pre-configured to operate as an Ethernet bridge compatible with the IEEE 802.1d Spanning Tree Protocol definitions. This means that without configuration modifications, the router will bridge Ethernet traffic to its partner bridges when the Wide Area Network (WAN) connection has been established.

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Black Box LR1530A-R3, LR1530A-EU-R3 manual Configure as an Ethernet Bridge, Bridged Local Area Networks

Contents

Frame Relay/Leased Line Bridge/Router Specifications Normas Oficiales Mexicanas Electrical Safety Statement Page Page Page Contents Introduction to Filtering Appendix D Software Upgrades Page Unpack the unit Select a Site Identify the Connectors Rear View of the CSU-DSU router Connect to the Console Make the LAN ConnectionsMake the WAN Link Connection Installation Power Up the router Login and Enter the Required Configuration Mandatory Configuration Mandatory Configuration Setting the Link Interface Type Set Link Interface Type Location MainLink Interface Type Setting the T1/E1Parameters Service parameters Location MainT1/E1 Selection Location Main Framed/unframed/SF/ESF As specifed First channel Number number of channels Set Link Interface Type Location Main Identify the Status LEDs Green Front View of the router Typical Applications & HOW to Configure Them Managing the router Using Menus Configuration Option Name Location Main ConventionsOption Name Basic Frame Relay Configuration Frame Relay configuration Frame Relay enable Location Main Link Speed Location MainLink Speed Auto Learning the Frame Relay Configuration Manual Configuration LMI Type Auto-Learning Location MainLMI Type Quick Start Frame Relay IP AddressIP Address / Subnet mask size PPP Encapsulation Location Main Basic Leased Line Configuration Frame Relay disable Location MainDisabled Quick Start PPP Leased Line Connections Basic PPP Leased Line Configuration Local IP Address Location Main Bridge Connection Should You Bridge or Route? Configure as an Ethernet Bridge Bridged Local Area Networks IP Address Applications Configure as an Ethernet IP router IP Routed Local Area Networks IP Address Define an IP Default Gateway Default Gateway Location MainDefault Gateway Define an IP Static Route Edit Static Route Location MainRemote Site Next Hop Cost Add Define an IP Subnet Mask IP Address & Subnet Size Location Main IP Address / mask size Applications Configure as an Ethernet IPX router Novell Servers in Both Locations Applications Novell Servers in One Location Only IPX Routed Local Area Networks Servers on one side IPX Frame Types Location Main PPP Link Configuration Overview Numbered Links Unnumbered Links Configure Dynamic Host Configuration Protocol Dhcp Services Location MainServer IP Address Pool Location Main Local + External DNS Server Configuration DNS Set-Up Location Main Configure Network Address Translation NAT NAT Enabled Location MainEnabled NAT Exports Translation type Location Main Configure PPP Security Security Level Location MainSecurity Level Incoming PAP Password Incoming Chap Secret Outgoing PAP Password Outgoing Chap SecretSecurity Database Entry Location Main Configure Firewall 10 Sample Firewall Application Firewall WAN Remote Site Filter direction Location Main FTP & WWW Designated Servers Location Main Firewall LAN Filter Direction Location Main Firewall Table Entry Location Main Firewall Location Main Applications MAC Address Filtering Introduction to Filtering Pattern Filtering Not Introduction to Filtering NetBIOS &NetBEUI Microsoft Windows Popular FiltersBridge IP & Related Traffic NetBIOS over TCP BanyanIP Router Other interesting TCP Ports Appendix a Menu Trees Menu Tree From previous Page Appendix B Octet Locations on Ethernet Frames Octet Locations on Ethernet Frames Ethernet Type Codes ARP Octet Locations on Ethernet Frames Octet Locations on a Bridged XNS Frame Octet Locations on Ethernet Frames Opening the case Appendix C Servicing Information Identifying the Internal Components CPU J11 Sanity Timer To Clear a Lost PasswordForce Zmodem Software Load Connecting to the Console Connector Figure C-3 Rear View of the Console and LAN Connectors WAN Interface Connection Pinout InformationModule CSU/DSU Module T1/E1 Module T1/E1 Universal WAN Module Connecting cable must be a shielded cable Link Pinouts Servicing Information RS232C / V.24 Link Pinouts DCE RS530 / RS422 Link Pinouts Figure C-8 RS530 / RS422 Link Pinouts 11 / X.21 Link Pinouts Figure C-9 V.11 / X.21 Link Pinouts 11 / X.21 DB25 to DB15 Connector Cable Figure C-10 V.11 / X.21 DB25 to DB15 Connector Cable Null-Modem Cable Configuration Figure C 11 V.35 Null-Modem Cable RS232 / V.24 Null-Modem Cable Figure C-12 RS232 / V.24 Null-Modem Cable Signal Ground DTE Ready a RS530 / RS422 Null-Modem Cable Servicing Information Appendix D Software Upgrades Considerations Servicing Information Page PC used for Tftp transfers Link