Efficient Networks 5800 - Manual (Page 58)

Chapter 4: Frequently Asked Questions Efficient Networks
®
5800 Series
User Reference Guide
Page 4-2 Efficient Networks
®
To provide secure connections across the Internet, consider purchasing the
Virtual Private Network (VPN) software option. Additional information on NAT,
Firewall, and Secure VPN can be found in the CLI Reference Manual.
Can I have an FTP, Mail or Web server and use NAT?
Yes, but you need to configure your router appropriately using the NAT Setting
screen or the Command Line Interface (CLI). By entering a remote system
or addServer command, you can add FTP, Mail, NetMeeting or Web servers
to your LAN. These can then be accessed from another LAN or the Internet
while NAT is enabled.
What is MER?
MER (MAC Encapsulated Routing) allows your router to perform routing on the
LAN side and bridging on the WAN side. MER is needed only when your
Network Service Provider doesn’t support IP routing. MER adds NAT
functionality, thereby providing greater security and more IP addresses for your
LAN than what is provided by your NSP.
Why can’t I get a response after entering a URL in my browser?
If you do not get a response, try pinging the IP address. If you get a response to
pinging, then your Domain Name Service (DNS) is probably failing. You should
contact your NSP for DNS assistance. If you do not get a response, then try
pinging the WAN Gateway address (of your NSP) to confirm that your router can
connect with the NSP.
If pinging fails, check the router’s lights. The Link lights on the router front
should be green. Also check your cable connections. If everything appears
correct, check your IP configuration and ensure that the gateway and LAN IP
addresses match.
How can I connect my modem for dial backup if the connector on my dialup modem
doesn’t match the console port on the router?
You need a special DB9 to DB25 connector, available from the Efficient
Networks web site at the following address: http://www.efficient.com
My modem is not a V.90. Can I use it for dial backup?
Yes, you can use a non-V.90 modem with your router for dial backup. Be sure to
use the correct initialization string for your modem (consult your modem
documentation).