3Com 3CR856-95 Network Router User Manual


 
69
6 Re-apply power to the Gateway, and when the start-up sequence
has completed, browse to:
http://192.168.1.1
and run the configuration wizard. You may need to restart your
computer before you attempt this.
7 When the configuration wizard has completed, you may
reconnect your network as it was before.
Alert LED
The Alert LED will flash when the Gateway unit is first powered
up while the system software checks the hardware for proper
operation. Once the Gateway has started normal operation, the
Alert LED will go out.
If the Alert LED does not go out following start up, but
illuminates continuously, this indicates that the software has
detected a possible fault with the hardware. If the Alert LED is
flashing slowly this indicates a firmware failure. Remove
power from the Gateway, wait 10 seconds and then re-apply
power. If the Alert LED comes on continuously again, then a
fault has been detected. Locate the copy of the Gateway
software on the accompanying CD-ROM and upload it to the
Gateway to see if this clears the fault (refer to “Recovering
from Corrupted Software” below). If this does not fix the
problem, contact your supplier for further advice.
During normal operation, you may notice the Alert LED
lighting briefly from time to time. This indicates that the
Gateway has detected a hacker attack from the Internet and
has prevented it from harming your network. You need take
no specific action on this, unless you decide that these attacks
are happening frequently in which case you may wish to
discuss this with your ISP. The Gateway logs such attacks, and
this information is available through the configuration screens.
Recovering from Corrupted Software
If the Alert LED remains permanently on following power-up, it is
possible that the system software has become corrupted. In this
condition, the Gateway will enter a failsafe state; DHCP is
disabled, and the LAN IP address is set to 192.168.1.1. Follow
the instructions below to upload a new copy of the system
software to a Gateway unit in this state.
Ensure that one of your computers has a copy of the new
software image file stored on its hard disk or available on
CD-ROM.
1 Remove power from the Gateway and disconnect the Cable/DSL
modem and all your computers, except for the one computer
with the software image.
2 You will need to reconfigure this computer with the following
static IP address information:
IP address: 192.168.1.2
Subnet mask: 255.255.255.0
Default Gateway address: 192.168.1.1
3 Restart the computer, and re-apply power to the Gateway.
4 Using the Web browser on the computer, enter the following
URL in the location bar:
http://192.168.1.1
This will connect you to the failsafe mode of the Gateway.
dua08 569-5aaa02.book Pag e 69 Thursday , Novem ber 7 , 2002 3:09 PM