Introduction; Applications; Transparent Lan-To-Lan Routing; Transparent Remote Client Access - Black Box LRA001A-R2 User Manual

This chapter introduces Router technology, features, and applications. Installation instructions begin in
Chapter 3.
If you are upgrading a previous version of the Router, make sure you read Appendix C in the Reference
Manual.
The Routers are remote access servers that route TCP/IP and IPX (NetWare
remote local area networks (LANs) and clients to Ethernet-based LANs, using standard V.34 modems, or
synchronous lines (leased or switched). Personal computers can access Router servers using the Async
Client software. Macintosh
point protocol (PPP).
Three models are available:
Model
Async Router AR-P (LRA001A-R2)
Async Router AR-5 (LRA005A-R2)
Sync Router (LRS002A-R2)

2.1 Applications

All Router models provide autosensing Ethernet interfaces (10BASE-T, AUI), and support multiple
protocols for both LAN-to-LAN and user-to-LAN (remote-client access) routing. All Routers have an
internal V.34 modem (the AR-5 model has five internal modems).
2.1.1 T LAN-
RANSPARENT
For transparent routing between separate Ethernet-based LANs, pair two Routers together or use
compatible devices. Use any Router model to provide inexpensive networking solutions for remote
of fices. For maximum throughput, use the Sync Router for synchronous connections.
2.1.2 T R
RANSPARENT EMOTE
For remote client access, the Router acts as a remote node server, allowing IPX- and TCP/lP-based PCs
and laptop computers to become remote nodes on an Ethernet-based network attached to the Router.
Remote client workstations can then dial into the Router to access services on the LAN as if they were
local nodes. The Router supports transparent access for a maximum of 100 remote clients, and accepts
calls from any client on any dial-up modem line configured for client access.
2.1.3 R C
EMOTE LIENTS AND
Router supports dual-stack functionality in both remote LAN-to-LAN and remote client operations. IP
and IPX protocols are supported, so that any DOS or Windows
workstation can access the Router. The Router uses the standard PPP protocol, which allows third-party
client applications to access the Router.
ASYNC ROUTER AR-P, AR-5, AND SYNC ROUTER USER'S MANUAL

2. Introduction

® and other non-PC clients can dial into a Router using the standard point-to
Table 2-1. Router Models.
-LAN
TO ROUTING
C A
LIENT CCESS
LAN D -S
S WITH UAL TACK
WAN Capabilities
1 V.34 modem
5 V.34 modems
1 sync interface, 1 V.34 modem
F
UNCTIONALITY
® based PC, Macintosh, or UNIX
® ) traffic. Routers connect
®
11