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Problems with internet access, Problems with the firewall, 4 problems with internet access – ZyXEL Communications ZYWALL10 User Manual

Page 237: 5 problems with the firewall

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ZyWALL 10 Internet Security Gateway

Troubleshooting

21-3

21.4 Problems with Internet Access

Table 21-4 Troubleshooting Internet Access

Problem

Corrective Action

Connect your Cable/xDSL modem with the ZyWALL using
appropriate cable.

Check with the manufacturer of your Cable/xDSL device about your
cable requirement because for some devices may require crossover
cable and others a regular patch cable.

Cannot access the
Internet.

Verify your settings in menu 3.2 and menu 4.

21.5 Problems with the Firewall

Table 21-5 Troubleshooting the Firewall

Problem

Corrective Action

You can ONLY configure the firewall via ZyWALL Web Configurator
or CI command. You will not be able to access the ZyWALL Web
Configurator from the WAN if:

The firewall is activated, as the firewall by default, blocks all WAN to
LAN traffic. To access the ZyWALL Web Configurator from the WAN
when the firewall is activated, you will need to create a firewall rule
(see the Example Firewall Rules chapter) to allow web traffic initiated
from the WAN.

You have applied a filter in menu 3.1 (LAN) or in menu 11.5 (WAN) to
block web service.

Cannot configure the
firewall.

You have an SMT console session running.