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Compatible Routers

LAN-Dial

Router Setup Packet

What You Need

Setup

Configuration

Commands

Routing with Compatible Systems MicroRouter 900i for LAN-Dial Service

Trouble Shooting Guide

OS Restoration

There is a known condition under which the Compatible Systems MicroRouter 900i can lose its operating system. The following paragraphs give a description of the circumstance and what we need you to do to restore the router to its operational state.

You will know that the router has lost its OS if LEDs 3, 4, 7 and 8 are fast flashing in unison. In this state, it is executing from ROM (static) and can do little more than accept a software download. The software download writes the system OS into non-volatile (re-writable) FLASH ROM.

One known way that the router can get into this state is if the router is power cycled while it is either compressing or writing the FLASH ROM. Do not power down the router during boot up. Allow at least 2 minutes for the boot up process to complete.

Both the system OS and the configuration information are kept in a single FLASH ROM. In order to update either of these, the router must write the existing information to dynamic RAM, erase the FLASH, and then write the RAM information back into the FLASH ROM.

If the router loses power after starting to erase the FLASH ROM and before it has had a chance to complete writing the information into the FLASH ROM, the contents of the FLASH ROM will be incomplete and unusable by the router. Hence, the reason it boots from ROM.

In order to reload the router operating system, we will need to have one of the following setups using the Ethernet port on the router.

• An Ethernet cable with the transmit and receive rolled (RJ45 cross over cable), and a PC or Mac with an Ethernet card.
  
  If using the above scenario, connect the two directly.
  
  
• A PC or Macintosh with an Ethernet card and an Ethernet hub.
  
  For this scenario, external network traffic to the router should be eliminated. Be sure to:
  
  
  • disconnect the cable from the WAN port on the router.
  • have only the router and one PC or Mac connected to the hub.

The router has a default IP address of 198.41.12.1 so we are going to have to assign the PC or Mac an address of 198.41.12.2 in the TCP/IP Stack.

Launch CompatiView from the PC or Mac that you are using.

The default password is letmein.

PC Instructions

1. Choose Administration-TFTP Download.

2. For IP address of Unknown Router put
   198.41.12.1

3. Put Microdisk in floppy drive and choose the only *.dld file that should exist there.

4. Click on OK.

Macintosh Instructions

1. Choose Administration-Download Software.

2. Put Microdisk in floppy drive and choose the m900i_v.3.0.0 file that should exist there.

3. Click on OK.