Technical information

Watson SHDSL Router
Web-based Management Manual
Watson-SHDSL-Router-GUI-Manual.doc
Version 2.3-03
9-112
Revision: 2012-02-29
Note: Web Management, Telnet and SSH may be used to modify settings of the fire-
wall or disable it. The user may also change local IP addresses and other settings,
making it difficult or impossible to access the gateway from the home network. There-
fore, remote access to Telnet or HTTP services should be blocked and should only be
permitted when it is absolutely necessary.
SNMP Used to allow Simple Network Management Protocol (SNMP) re-
quests to remotely configure and monitor Watson. For more information, refer to
Section 9.7.2.
Diagnostic Tools Used for troubleshooting and remote system management by
you or your Internet Service Provider. The utilities that can be used are Ping and
Traceroute (over UDP).
To allow remote access to Watson's administrative services:
1. Select the services that you would like to make available to computers on the In-
ternet. The following should be taken into consideration:
 Although Telnet service is password-protected, it is not considered a secured
protocol. When allowing incoming access to a Telnet server, if port forwarding
is configured to use port 23, select port 8023 to avoid conflicts.
 When allowing incoming access to the WBM, if port forwarding is configured to
use port 80, select port 8080 to avoid conflicts.
2. Click 'OK' to save the settings.
Encrypted remote administration is performed using a secure SSL connection,
which requires an SSL certificate. When accessing Watson for the first time using
encrypted remote administration, you will encounter a warning message generated
by your browser regarding certificate authentication. This is due to the fact that
Watson's SSL certificate is self-generated. When encountering this message under
these circumstances, ignore it and continue. It should be noted that even though
this message appears, the self-generated certificate is safe, and provides you with
a secure SSL connection. It is also possible to assign a user-defined certificate to
Watson. To learn about certificates, refer to Section 9.9.4.