Netgear FVS338 참조 매뉴얼
Reference Manual for the ProSafe VPN Firewall 50 FVS338
Troubleshooting
10-7
January 2005
— 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.
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.
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:
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
).
•
Use the Default Reset button on the rear panel of the firewall. Use this method for cases when
the administration password or IP address is not known.
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 Default Reset button on the rear panel of the firewall.
or IP address, you must use the Default Reset button on the rear panel of the firewall.
1.
Press and hold the Default Reset button until the Test LED turns on (about 10 seconds).
2.
Release the Default 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
FVS338 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:
FVS338 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.
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”.
Time. In the E-Mail menu, check or uncheck the box marked “Adjust for Daylight Savings
Time”.