Troubleshooting A Tcp/Ip Network Using A Ping Utility; Testing The Lan Path To Your Firewall - NETGEAR DGFV338 ProSafe Reference Manual

DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual
• Your ISP may require a login program.
Ask your ISP whether they require a PPP over Ethernet (PPPoE) or some other type of login.
(If ADSL, ask if they require either a PPPoE or a PPPoA login.)
• If your ISP requires a login, you may have incorrectly set the login name and password.
• Your ISP may check for your PC's host name.
Assign the PC Host Name of your ISP account as the Account Name in the Basic Settings
menu.
• Your ISP only allows one Ethernet MAC address to connect to Internet, and may check for
your PC's MAC address. In this case:
Inform your ISP that you have bought a new network device, and ask them to use the firewall's
MAC address.
OR
Configure your firewall to spoof your PC's MAC address. This can be done in the Basic
Settings menu. Refer to
"Manually Configuring the Ethernet ISP Connection" on page
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.
Troubleshooting
"Manually Configuring the ADSL ISP Connection" on page 2-8
v1.0, May 2008
2-9.
or
8-5