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Select the RoadRunner login program used in your region. b. Enter the login name and password provided by RoadRunner. c. If RoadRunner provided an authentication server address, enter it as Login Server IP address. Otherwise, leave this field as 0.0.0.0. 5. Use the space bar to toggle the IP Address Assignment field to Static or Dynamic. If your service provider has assigned you an IP address to be manually configured in your PC, select Static. In this case, enter your assigned IP address, subnet mask, and gateway address (the address of the ISP’s router). If you do not know the gateway address, leave this field as 0.0.0.0. 6. Use the space bar to toggle the Single User Account field to Yes. 7. Press [Enter] at the Press ENTER to Confirm... prompt to confirm your selections. You can press [Esc] at any time to cancel your selections. When you save this menu, the router automatically creates a default static route to the ISP. Configuration for Local Servers Although NAT causes your entire local network to appear as a single machine to the Internet, you can make local servers for different services (for example, FTP or HTTP) visible and available to the Internet. Requested services are identified by port numbers in an incoming IP packet. For example, a packet that is sent to the external IP address of your router and destined for port number 80 is an HTTP (Web server) request, and port 21 is an FTP request. Examples of port numbers are shown at the bottom of Menu 15, although you are not limited to these choices. See IETF RFC1700, “Assigned Numbers,” for port numbers for common protocols.. Note: Many residential broadband ISP accounts do not allow you to run any server processes (such as a Web or FTP server) from your location. Your ISP may periodically check for servers and may suspend your account if it discovers any active services at your location. If you are unsure, refer to the Acceptable Use Policy of your ISP. Us i ng t he M ana ger I n t e rf ac e t o Co nf i gure t he Rout er f o r I n t e rnet A c c e s s Reference Guide for the ModelRT311 and RT314 InternetAccessGateway Routers Use Menu 15, SUA Server Setup, to configure the router to forward incoming protocols to IP addresses on your local network based on the port number. In addition to servers for specific protocols, you can also specify a default server to which all other incoming protocols are forwarded. Menu 15 - SUA Server Setup is shown in Figure 6-2. Menu 15 -Multiple Server Configuration Port # IP Address ------ --------------- 1.Default 0.0.0.0 2. 0 0.0.0.0 3. 0 0.0.0.0 4. 0 0.0.0.0 5. 0 0.0.0.0 6. 0 0.0.0.0 7. 0 0.0.0.0 8. 0 0.0.0.0 Press ENTER to Confirm or ESC to Cancel: Figure 6-2. Menu 15 - SUA Server Setup Local Web and FTP Server Example If a local PC, with a private address of 192.168.0.3, acts as a Web and FTP server, configure Menu 15 to forward ports 80 (HTTP) and 21 (FTP) to local address 192.168.0.3 as shown in Table 6-1. Table 6-1. Menu 15 Field Entries (Example) Port # IP Address Default 0.0.0.0 80 (HTTP) 192.168.0.3 21 (FTP) 192.168.0.3 Using the Manager Interface to Configure the Router for Internet Access Reference Guide for the Model RT311 and RT314 Internet Access Gateway Routers In order for a remote user to access this server from the Internet, the remote user must know the IP address that has been assigned by your ISP. If this address is 172.16.1.23, for example, an Internet user can access your Web server by directing the browser to The assigned IP address can be found in Menu 24.1, in the WAN IP Address field. Sample considerations for this application are: • If your account’s IP address is assigned dynamically by your ISP, the IP address may change periodically as the DHCP lease expires. • If the IP address of the local PC is assigned by DHCP, it may change when the PC is rebooted. To avoid this, change the configuration of your PCs to use fixed private addresses rather than DHCP-assigned addresses. • Local PCs must access the local server using the PCs’ local LAN address (192.168.0.3 in this example). Attempts by local PCs to access the server using the external IP address (172.16.1.23 in this example) will fail. Local Game Host or Videoconference Example Some online games and videoconferencing applications are incompatible with NAT. The Model Model RT311 and RT314 routers are programmed to recognize some of these applications and to work properly with them, but there are other applications that may not function well. In some cases, one local PC can run the application properly if that PC’s IP address is entered as the default in Menu 15. If one local PC acts as a game or videoconference host, enter its IP address as the default. Setting Static Routes Under normal circumstances, the router has adequate routing information after you configure the Internet access information, and you do not need to configure additional static routes. You must configure static routes only for unusual cases such...
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