Netgear FVS336G-300NAS Specifications download pdf (Page 625)

100

101

Diagnostics and Troubleshooting

625

ProSAFE Dual WAN Gigabit WAN SSL VPN Firewall FVS336Gv3

- 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 VPN firewall and your workstation are correct

and that the addresses are on the same subnet.

Test the Path from Your Computer to a Remote Device

After verifying that the LAN path works correctly, test the path from your computer to a

remote device. From the Windows Run dialog box, type

ping -n 10 <IP address>

in which <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 Test the LAN Path to Your VPN Firewall on

page 624 are displayed. If you do not receive replies, check the following:

• Check that your computer has the IP address of your VPN firewall listed as the default

gateway. If the IP configuration of your computer is assigned by DHCP, this information is

not visible in your computer’s Network Control Panel.

• Check to see that the network address of your computer (the portion of the IP address

that is specified by the netmask) is different from the network address of the remote

device.

• Check that the modem or router is connected and functioning.

• For IPv4 PPPoE or PPTP connections, your ISP might check for your computer’s host

name. For information about entering the host name, system name, or account name and

the domain name or workgroup name that was assigned to you by your ISP, see

Manually

Configure a PPPoE IPv4 Internet Connection on page 39 or Manually Configure a PPTP

IPv4 Internet Connection on page 44.

• Your ISP might be rejecting the Ethernet MAC addresses of all but one of your

computers. Many broadband ISPs restrict access by allowing traffic only from the MAC

address of your broadband modem, but some ISPs additionally restrict access to the

MAC address of a single computer connected to that modem. If your ISP does this, you

must configure your VPN firewall to clone or spoof the MAC address from the authorized

computer. For more information, see

Managing Advanced WAN Options on page 66.

Troubleshoot Problems with Date and Time

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. For information about displaying the current date and time of day, see

Configure Date and Time Service on page 558.

Problems with the date and time function can include the following:

• Date shown is January 1, 2000. Cause: The VPN firewall has not yet successfully

reached a network time server. Check that your Internet access settings are configured

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