Problems With The Wan Interface - ZyXEL Communications ZyWALL 5 User Manual

ZyWALL 5 Internet Security Appliance
Problems with the DMZ Interface
PROBLEM
Cannot access Check your Ethernet cable type and connections. Refer to the Quick Start Guide or
servers on the Compact Guide for DMZ connection instructions.
DMZ from the
Make sure the Ethernet adapters on the LAN computer and the DMZ server are installed
LAN.
and functioning properly.
Verify that the IP address of the DMZ port and the LAN port are on separate subnets.
Make sure that NAT is configured for your DMZ servers.
Cannot ping Check the 10M/100M DMZ LEDs on the front panel. One of these LEDs should be on. If
any computer they are both off, check the cables between your ZyWALL and hub or the station.
on the DMZ.
Verify that the IP address and the subnet mask of the ZyWALL and the servers are on the
same subnet.

Problems with the WAN Interface

PROBLEM
Cannot get The ISP provides the WAN IP address after authentication. Authentication may be through
WAN IP the user name and password, the MAC address or the host name. Use the following
address from corrective actions to make sure the ISP can authenticate your connection.
the ISP.
You need a username and password if you're using PPPoE or PPTP encapsulation. Make
sure that you have entered the correct Service Type, User Name and Password (the user
name and password are case sensitive). Refer to the WAN Screens chapter (web
configurator) or the Internet Access chapter (SMT).
If your ISP requires MAC address authentication, you should clone the MAC address from
your computer on the LAN as the ZyWALL's WAN MAC address. Refer to the WAN Screens
chapter (web configurator) or the WAN and Dial Backup Setup chapter (SMT). It is
recommended that you clone your computer's MAC address, even if your ISP presently does
not require MAC address authentication.
If your ISP requires host name authentication, configure your computer's name as the
ZyWALL's system name. Refer to the Wizard Setup chapter (web configurator) or the
General Setup chapter (SMT).
Problems with Internet Access
PROBLEM
Cannot access Connect your cable/DSL modem with the ZyWALL using the appropriate cable.
the Internet.
Check with the manufacturer of your cable/DSL device about your cable requirement
because some devices may require crossover cable and others a regular straight-through
cable.
Refer to the WAN Screens chapter (web configurator) or the Internet Access chapter (SMT)
and verify your settings.
A-2
Chart A-3 Troubleshooting the DMZ Interface
CORRECTIVE ACTION
Chart A-4 Troubleshooting the WAN Interface
CORRECTIVE ACTION
Chart A-5 Troubleshooting Internet Access
CORRECTIVE ACTION
Troubleshooting