3Com OfficeConnect 3C855 Guide

Using Remote Management with the
OfficeConnect Cable/DSL Gateway (3C855) and
OfficeConnect Wireless Cable/DSL Gateway
(3CRWE51196)
The OfficeConnect Cable/DSL Gateway and OfficeConnect Wireless
Cable/DSL Gateway can be remotely managed across the Internet. This
would allow a remote user to configure the Gateway while away from the
office. A typical system set-up and the steps needed to remotely manage
the Gateway are described in this document using the OfficeConnect
Cable/DSL Gateway as an example.

1 Configuring the Gateway
To configure the Gateway for remote management, the user must first set-up the
Gateway whilst he has access to it from the LAN. To set-up the Gateway:
1. Browse to the Welcome screen, Password tab.
2. Enable the checkbox “Enable administration from an Internet Host”.
3. Enter one of the following into the “Host IP Address” field:
 If the remote PC obtains an IP address from the ISP, enter the IP address of
the remote PC that will be managing the Gateway.
 If the remote PC obtains an IP address from a router that performs NAT, enter
the internet IP address of the remote router.
 If you do not know the IP address of the remote PC, enter 0.0.0.0. This is
useful if a number of different remote users require access to the Gateway or if
the IP address of the remote PC is unknown or changes frequently.
WARNING. This reduces the security of the Gateway, as it will allow any
remote PC access to the Gateway if they know the System Administration
password.
2 From the Remote PC
1. Ensure that the remote PC is connected to the internet.
2. The remote user opens a browser on their PC and browses to the Gateway using:
http://<the_Gateway_Internet_IP_Address>:8000
The Gateway’s Internet IP Address is displayed on the Remote Management
configuration page and in the status page.
3. The remote user must then authenticate with the system administration password
to access the Gateway’s Web interface.

Figure 1 - Typical set-up
Router or
Modem
Cable /DSL
Modem
Internet
Remote Office
3C855
Gateway
Local Office
Enter the IP Address of the remote PC or router
into the Gateway's Host IP Address field as
shown below.
Enter into your browser the Internet IP Address of
the Gateway and append :8000 e.g.
"http://192.168.10.19:8000"

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