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Troubleshooting
371
ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N
To check the WAN IP address:
1.
Launch your browser and navigate to an external site such as www.netgear.com.
2.
Access the web management interface of the wireless VPN firewall’s configuration at
3.
Select
Network Configuration > WAN Settings > Broadband ISP Settings
. The
Broadband ISP Settings screen for IPv4 displays.
4.
Take one of the following actions:
-
For IPv4
. Click the
Broadband Status
option arrow. The Connection Status pop-up
screen for IPv4 displays (see
Figure 11
on page 30).
-
For IPv6
. In the upper right of the screen, select the
IPv6
radio button. The ISP
Broadband Settings screen displays the IPv6 settings. Then, click the
Status
option
arrow. The Connection Status pop-up screen for IPv6 displays (see
Figure 18
on
page 39).
5.
Check that an IP address is shown for the WAN port. If an IP address with zeros only is
shown, or if no IP address is shown, your wireless VPN firewall has not obtained an IP
address from your ISP, or for IPv6, has not generated an IP address.
If your wireless VPN firewall is unable to obtain an IP address from the ISP, you might
need to force your modem, dish, or router to recognize your new wireless VPN firewall
by performing the following procedure:
1.
Turn off the power to the modem, dish, or router.
2.
Turn off the power to your wireless VPN firewall.
3.
Wait 5 minutes, and then turn on the power to the modem, dish, or router.
4.
When the LEDs of the modem, dish, or router indicate that synchronization with the ISP has
occurred, turn on the power to your wireless VPN firewall.
If your wireless VPN firewall is still unable to obtain an IP address from the ISP, the problem
might be one of the following:
Your ISP might require a login program.
For IPv4 connections, ask your ISP whether they require PPP over Ethernet (PPPoE) or
some other type of login.
For IPv4 connections, if your ISP requires a login, you might have incorrectly set the login
name and password.
For IPv4 connections, your ISP might check for your computer’s host name. On the
Broadband ISP Settings screen for IPv4, in the Account Name field, enter the host name,
system name, or account name that was assigned to you by your ISP. You might also
have to enter the assigned domain name or workgroup name in the Domain Name field,
and you might have to enter additional information. For more information, see
Manually
Configure an IPv4 Internet Connection
on page 31.
Your ISP allows only one Ethernet MAC address to connect to the Internet, and might
check for your computer’s MAC address. In this case, do one of the following:
-
Inform your ISP that you have bought a new network device, and ask them to use the
wireless VPN firewall’s MAC address.
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Troubleshooting
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ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N
-
Configure your wireless VPN firewall to spoof your computer’s MAC address. You can
do this in the Router’s MAC Address section on the Broadband Advanced Options
screen. For more information, see
Configure Advanced WAN Options and Other
Tasks
on page 47.
If your wireless VPN firewall can obtain an IP address, but an attached computer is unable to
load any web pages from the Internet:
Your computer might not recognize any DNS server addresses.
A DNS server is a host on the Internet that translates Internet names (such as
www.netgear.com) to numeric IP addresses. Typically your ISP provides the addresses of
one or two DNS servers for your use. You can configure your computer manually with
DNS addresses, as explained in your operating system documentation
.
Your computer might not have the wireless VPN firewall configured as its TCP/IP
gateway.
Troubleshooting the IPv6 Connection
If you have difficulty connecting over an IPv6 connection, there might be an incorrect
configuration on the wireless VPN firewall or the computer from which you are trying to
connect to the wireless VPN firewall:
Check the wireless VPN firewall:
By default, the wireless VPN firewall is set to IPv4-only mode. Make sure that the wireless
VPN firewall is set to IPv4/IPv6 mode (see
Configure the IPv6 Routing Mode
on page 36).
Make sure that the ISP settings are correct (see
Configure a Static IPv6 Internet
Connection
on page 39). The wireless VPN firewall cannot receive a valid IPv6 address if
the Internet connection is not correctly configured.
Make sure that the wireless VPN firewall can provide IPv6 addresses to the computers on
the LAN (see
Manage the IPv6 LAN
on page 70). Check the settings on the LAN Setup
(IPv6) screen, and if applicable for your type of configuration, on the RADVD screen.
Check the computer:
Make sure that the operating system supports IPv6. Normally, the following operating
systems support IPv6:
-
Windows 7, all 32- and 64-bit versions
-
Windows Vista, all 32- and 64-bit versions
-
Windows XP Professional SP3 (32- and 64-bit)
-
Windows Server 2008, all versions
-
Windows Server 2008 R2, all versions
-
Windows Server 2003, all versions
-
Windows Server 2003 R2, all versions
-
Linux and other UNIX-based systems with a correctly configured kernel
-
MAC OS X
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Troubleshooting
373
ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N
Make sure that IPv6 is enabled on the computer. On a computer that runs a
Windows-based operating system, do the following (note that the steps might differ on the
various Windows operating systems):
a.
Open the Network Connections screen or the Network and Sharing Center screen.
For example, on the Windows taskbar, click
Start
, then select
Control Panel
, and
then
Network Connections
.
b.
Click or double-click
Local Area Connection
for the connection to the wireless VPN
firewall. The Local Area Connection Properties screen displays:
Figure 222.
c.
Make sure that Internet Protocol Version 6 (TCP/IPv6) displays, as is shown on the
previous screen.
Make sure that the computer has an IPv6 address. If the computer has a link-local
address only, it cannot reach the wireless VPN firewall or the Internet. On a computer that
runs a Windows-based operating system, do the following (note that the steps might differ
on the various Windows operating systems):
a.
Open the Network Connections screen or the Network and Sharing Center screen.
For example, on the Windows taskbar, click
Start
, then select
Control Panel
, and
then
Network Connections
.
b.
Click or double-click
Local Area Connection
for the connection to the wireless VPN
firewall.
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Troubleshooting
374
ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N
c.
Click or double-click
View status of this connection
. The Local Area Connection
Status screen displays:
Figure 223.
d.
Make sure that Internet access shows for the IPv6 connection. (The previous screen
shows that there is no Internet access.)
e.
Click
Details
. The Network Connection Details screen displays:
Figure 224.
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Troubleshooting
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ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N
f.
Make sure that an IPv6 address shows. The previous screen does not show an IPv6
address for the computer but only a link-local IPv6 address and an IPv6 default
gateway address, both of which start, in this case, with FE80.
Troubleshoot 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. You can
easily troubleshoot a TCP/IP network by using the ping utility in your computer or
workstation.
Test the LAN Path to Your Wireless VPN Firewall
You can ping the wireless VPN firewall from your computer to verify that the LAN path to the
wireless VPN firewall is set up correctly.
To ping the wireless VPN firewall from a computer running Windows 95 or later:
1.
From the Windows taskbar, click
Start
and select
Run
.
2.
In the field provided, type
ping
followed by the IP address of the wireless VPN firewall, for
example:
3.
Click
OK
.
A message similar to the following should display:
Pinging <IP address> with 32 bytes of data
If the path is working, you will see this message:
Reply from <IP address>: bytes=32 time=NN ms TTL=xxx
If the path is not working, you will see this message:
Request timed out
If the path is not functioning correctly, you could have one of the following problems:
Wrong physical connections
-
Make sure that the LAN port LED is on. If the LED is off, follow the instructions in
LAN or WAN Port LEDs Not On
on page 369.
-
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 wireless
VPN firewall.
Wrong network configuration
-
Verify that the Ethernet card driver software and TCP/IP software are both
installed and configured on your computer or workstation.
-
Verify that the IP address for your wireless VPN firewall and your workstation are
correct and that the addresses are on the same subnet.

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