User's Manual

Reference Manual for the Broadband Mobile Router MBR814
3-8 Connecting the Router to the Internet
202-10005-05, June 2005
2. Specify the Domain Name Server (DNS) Address:
• Select “Get Dynamically from ISP” if your ISP uses DHCP to assign your IP address.
Your ISP will automatically assign this address.
• If you know that your ISP does not automatically transmit DNS addresses to the router
during login, select “Use these DNS servers” and enter the IP address of your ISP’s
Primary DNS Server. If a Secondary DNS Server address is available, enter it also.
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 transfers the IP address of one
or two DNS servers to your router during login. If the ISP does not transfer an address, you
must obtain it from the ISP and enter it manually here.
3. You should only disable NAT if you are sure you do not require it. NAT automatically assigns
private IP addresses (192.168.0.x) to LAN connected devices. When NAT is disabled, only
standard routing is performed by this router.
Classical routing lets you directly manage the IP addresses the MBR814 uses. Classical
routing should be selected only by experienced users.
Note: Disabling NAT will reboot the router and reset all the MBR814 configuration settings to
the factory default. Disable NAT only if you plan to install the MBR814 in a setting where you
will be manually administering the IP address space on the LAN side of the router
4. Router MAC Address:
This section determines the Ethernet MAC address that will be used by the router on the
Internet port. Some ISPs will register the Ethernet MAC address of the network interface card
in your computer when your account is first opened. They will then only accept traffic from
the MAC address of that computer. This feature allows your router to masquerade as that
computer by “cloning” its MAC address.
To change the MAC address, select “Use this Computer’s MAC address”. The router will then
capture and use the MAC address of the computer that you are now using. You must be using
the one computer that is allowed by the ISP. Alternatively, select “Use this MAC address” and
enter it.
5. Click Apply to save your settings.
6. Click the Test button to test your Internet connection.
If the NETGEAR Web site does not appear within one minute, refer to Chapter 8,
“Troubleshooting”.