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I borrowed the instruction book for the EtherFast Cable/DSL Routers and now have some summarized information (or speculation about them).

AFAICT (without actually testing one), I believe these are very much like an Internet NAT gateway -- the EtherFast connects to the Internet and allows other computers to connect to the Internet by using it as a gateway.

Thus, with a router configured for one computer, all you have to do to connect a second computer to the Internet is plug it into the router, assign it an IP address like 192.168.1.2, 3, 4 ..., configure it to use 192.168.1.1 as the gateway, and to use the DNS servers provided by your ISP. See more under summary.

This was intended only as a summary to help establish a shared Internet connection when a single Internet connection is already successfully configured. I started to include more detail than I originally planned, but have now stopped. If others feel the need to add more detail, storm forward!

See AboutThesePages.

Contents

Summary

  • AFAICT, these routers act much like an Internet NAT gateway. The EtherFast connects to the Internet and allows other computers to connect to the Internet by using it as a gateway.
  • The default address of the router on the intranet (LAN) side is 192.168.1.1. In the simplest configuration, plug each LAN computer into the router, assign it an IP address like 192.168.1.2, 3, 4 ..., configure each LAN computer to use 192.168.1.1 as the gateway, and use the DNS servers provided by your ISP. (All of this is not covered on page 37 of the User Guide. wink (
  • The router also serves as a DHCP server. To answer some of my questions, it might be useful to set up a Windows client under DHCP and then use things like winipconfig (or whatever it is) to view the configuration.
  • There is a configuration procedure for the router, described in the manual. The configuration can be done with your browser by surfing to http://192.168.1.1. It includes:
    • Inputting your ISP's DNS servers into the router. This leads me to wonder if the router does something like serve as a caching DNS server, and if the computer clients can use an address in the 192.168.1.x range as the DNS (instead of the ISP's DNS server addresses).
  • There are three indicator lights for each Ethernet port:
    • Link/Act: If lit continuously, it means the router is successfully connected to a device through this port, if flashing, it means it is actively sending data. Hence, if it is dark, a link is not established.
    • Full/Col: If lit continuously, the established connection is full duplex. If flickering, this link is experiencing collisions. Presumably, half duplex collisions are also indicated by flickering (from a dark LED).
    • 100: Orange means the link is at 100 MBPS, dark means a link, if established, is 10 MBPS.
    • The indicators for the WAN are slightly different.

  • The manual I borrowed was 85-0G0041-
Q0 REV:1.1, copyright 2000, for the following devices:
    • BEFSRU3.1 EtherFast Cable/DSL Router with USB Port and 10/100 3-Port Switch
    • BEFSR41 V.2 EtherFast Cable/DSL Router with 10/100 4-Port Switch
    • BEFSR11 EtherFast 1-Port Cable/DSL
  • There are many other features of the router I have not described here, including:
    • Firewall
    • IPSec pass through for VPNs


Contributors

  • RandyKramer - 23 Mar 2002
  • <If you edit this page, add your name here, move this to the next line>

Rants

See MyRantings.

Like many other modern user guides, this gets into a lot of irritating detail without ever giving the simple overview of what the instructions are trying to accomplish. Especially, for example, in the Configuring Your Router's USB Port section -- it doesn't even make it clear that you only need to do this if you have a USB port. (That didn't come out right -- I know that I didn't have to configure a USB port since the model I'm talking about doesn't have one, but I jumped to the conclusion that I must configure the other ports and there should be some instructions similar to those for the USB port for the RJ-45 port. I'm not quite as stupid as this makes me sound -- a few days after reading the manual I was looking for an example of the overly detailed instructions that lead to confusion because there is no clear, simple, concise overview of, for example, which steps you have to do and which you do not.)

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Topic revision: r2 - 2002-03-24 - RandyKramer
 
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