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FVS338 ProSafe VPN Firewall 50 Reference Manual
Troubleshooting
7-5
v1.0, September 2006
–
Configure your firewall to spoof your PC’s MAC address. This can be done in the Basic
Settings menu. Refer to
“Configuring your Internet Connection” on page 2-2
.
If your firewall can obtain an IP address, but your PC is unable to load any Web pages from the
Internet:
•
Your PC may not recognize any DNS server addresses.
A DNS server is a host on the Internet that translates Internet names (such as www addresses)
to numeric IP addresses. Typically your ISP will provide the addresses of one or two DNS
servers for your use. You may configure your PC manually with DNS addresses, as explained
in your operating system documentation
.
•
Your PC may not have the firewall configured as its TCP/IP gateway.
Troubleshooting a TCP/IP Network Using a Ping Utility
Most TCP/IP terminal devices and firewalls contain a ping utility that sends an echo request packet
to the designated device. The device then responds with an echo reply. Troubleshooting a TCP/IP
network is made very easy by using the Ping utility in your PC or workstation.
Testing the LAN Path to Your Firewall
You can ping the firewall from your PC to verify that the LAN path to your firewall is set up
correctly.
To ping the firewall from a PC running Windows 95 or later:
1.
From the Windows toolbar, click on the Start button and select Run.
2.
In the field provided, type Ping followed by the IP address of the firewall, as in this example:
3.
Click on OK.
You should see a message like this one:
Pinging <IP address> with 32 bytes of data
If the path is working, you see this message:
Reply from < IP address >: bytes=32 time=NN ms TTL=xxx
If the path is not working, you see this message:
Request timed out
Page 162 / 178
FVS338 ProSafe VPN Firewall 50 Reference Manual
7-6
Troubleshooting
v1.0, September 2006
If the path is not functioning correctly, you could have one of the following problems:
•
Wrong physical connections
–
Make sure the LAN port LED is on. If the LED is off, follow the instructions in
“LAN
or Internet Port LEDs Not On
” on
page 7-2
.
–
Check that the corresponding Link LEDs are on for your network interface card and
for the hub ports (if any) that are connected to your workstation and firewall.
•
Wrong network configuration
–
Verify that the Ethernet card driver software and TCP/IP software are both installed
and configured on your PC or workstation.
–
Verify that the IP address for your firewall and your workstation are correct and that
the addresses are on the same subnet.
Testing the Path from Your PC to a Remote Device
After verifying that the LAN path works correctly, test the path from your PC to a remote device.
From the Windows run menu, type:
PING -n 10
<
IP address
>
where <
IP address
> is the IP address of a remote device such as your ISP’s DNS server.
If the path is functioning correctly, replies as in the previous section are displayed. If you do not
receive replies:
–
Check that your PC has the IP address of your firewall listed as the default gateway. If the
IP configuration of your PC is assigned by DHCP, this information will not be visible in
your PC’s Network Control Panel.
–
Check to see that the network address of your PC (the portion of the IP address specified
by the netmask) is different from the network address of the remote device.
–
Check that your cable or DSL modem is connected and functioning.
–
If your ISP assigned a host name to your PC, enter that host name as the Account Name in
the Basic Settings menu.
–
Your ISP could be rejecting the Ethernet MAC addresses of all but one of your PCs. Many
broadband ISPs restrict access by only allowing traffic from the MAC address of your
broadband modem, but some ISPs additionally restrict access to the MAC address of a
single PC connected to that modem. If this is the case, you must configure your firewall to
“clone” or “spoof” the MAC address from the authorized PC. Refer to
“Manually
Configuring Your Internet Connection” on page 2-9
.
Page 163 / 178
FVS338 ProSafe VPN Firewall 50 Reference Manual
Troubleshooting
7-7
v1.0, September 2006
Restoring the Default Configuration and Password
This section explains how to restore the factory default configuration settings, changing the
firewall’s administration password to
password
and the IP address to 192.168.1.1. You can erase
the current configuration and restore factory defaults in two ways:
•
Use the Erase function of the firewall (see
“Backup and Restore Settings” on page 6-13
).
•
Use the reset button on the rear panel of the firewall. Use this method for cases when the
administration password or IP address is not known.
To restore the factory default configuration settings without knowing the administration password
or IP address, you must use the reset button on the rear panel of the firewall.
1.
Press and hold the reset button until the Test LED turns on and begins to blink (about 10
seconds).
2.
Release the reset button and wait for the firewall to reboot.
Problems with Date and Time
The E-Mail menu in the Content Filtering section displays the current date and time of day. The
VPN firewall uses the Network Time Protocol (NTP) to obtain the current time from one of
several Network Time Servers on the Internet. Each entry in the log is stamped with the date and
time of day. Problems with the date and time function can include:
•
Date shown is January 1, 2000. Cause: The firewall has not yet successfully reached a
Network Time Server. Check that your Internet access settings are configured correctly. If you
have just completed configuring the firewall, wait at least five minutes and check the date and
time again.
•
Time is off by one hour. Cause: The firewall does not automatically sense Daylight Savings
Time. In the E-Mail menu, check or uncheck the box marked “Adjust for Daylight Savings
Time”.
Page 164 / 178
FVS338 ProSafe VPN Firewall 50 Reference Manual
7-8
Troubleshooting
v1.0, September 2006
Page 165 / 178
Default Settings and Technical Specifications
A-1
v1.0, September 2006
Appendix A
Default Settings and Technical Specifications
You can use the reset button located on the front of your device to reset all settings to their factory
defaults. This is called a hard reset.
•
To perform a hard reset, push and hold the reset button for approximately 5 seconds (until the
TEST LED blinks rapidly). Your device will return to the factory configuration settings shown
in
Table A-1
below.
•
Pressing the reset button for a shorter period of time will simply cause your device to reboot.
Table A-1. FVS338 Default Settings
Feature
Default Behavior
Router Login
User Login URL
User Name (case sensitive)
admin
Login Password (case sensitive)
password
Internet Connection
WAN MAC Address
Use Default address
WAN MTU Size
1500
Port Speed
AutoSense
Local Network (LAN)
Lan IP
192.168.1.1
Subnet Mask
255.255.255.0
RIP Direction
None
RIP Version
Disabled
RIP Authentication
Disabled
DHCP Server
Enabled
DHCP Starting IP Address
192.168.1.2
DHCP Ending IP Address
192.168.1.100
DMZ
Disabled

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