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3 internet access, Internet access – ZyXEL Communications ZyWALL 2 Plus User Manual

Page 608

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Chapter 45 Troubleshooting

ZyWALL 2 Plus User’s Guide

608

See the troubleshooting suggestions for

I cannot see or access the Login screen in the web

configurator.

Ignore the suggestions about your browser.

V

I cannot use the console port to access the ZyWALL.

1 Check to see if the ZyWALL is connected to your computer's console port.
2 Check to see if the communications program is configured correctly. The

communications software should be configured as follows:
• VT100 terminal emulation.
• 9600 bps is the default speed on leaving the factory. Try other speeds in case the speed

has been changed.

• No parity, 8 data bits, 1 stop bit, data flow set to none.

V

I cannot ping any computer on the LAN.

1 Check the 10M/100M LAN LEDs on the front panel. One of these LEDs should be on. If

they are both off, check the cables between your ZyWALL and hub or the station.

2 Verify that the IP address and the subnet mask of the ZyWALL and the computers are on

the same subnet.

V

I cannot access servers on the DMZ from the LAN.

1 Check your Ethernet cable type and connections. Refer to the Quick Start Guide for

DMZ connection instructions.

2 Make sure the Ethernet adapters on the LAN computer and the DMZ server are installed

and functioning properly.

3 Verify that the IP address of the DMZ port and the LAN port are on separate subnets.
4 Make sure that NAT is configured for your DMZ servers.

45.3 Internet Access

V

I cannot get a WAN IP address from the ISP.

1 The ISP provides the WAN IP address after authenticating you. Authentication may be

through the user name and password, the MAC address or the host name.