User manual MOTOROLA WR850G

[. . . ] User Guide WR850 Wireless Broadband Routers WR850GP and WR850G WR850G WR850GP WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE. CAUTION: TO ENSURE REGULATORY COMPLIANCE, USE ONLY THE PROVIDED POWER AND INTERFACE CABLES. DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE INSTALLATION AND TROUBLESHOOTING INSTRUCTIONS. This device must be installed and used in strict accordance with the manufacturer's instructions as described in the user documentation that comes with the product. [. . . ] Step 1: At LAN Usage Filters, under LAN IP Address Range, enter the IP address(es) of the PC(s) to be restricted. NOTE: If you intend to restrict multiple clients in the home, it is best to assign them consecutive IP addresses to allow you to enter a single LAN IP Address Range without disabling another client, while conserving LAN Usage Filters at the same time. Step 2: Under Protocol, alternate TCP and UDP on each line. 3-32 WR850 Configuration Section 3 Step 3: Under Destination Port Range, enter the entire port range (0 through 65535) on each line. Step 4: Under From Day and To Day, select the first day the restrictions should be in place, and then the first day the restrictions should no longer be in place. If a filtering period begins and ends on the same day, the same day should be entered in From Day and To Day. If that same filtering period is repeated on multiple days, you should enter each day on a pair of filter lines: Step 5: Under From Hour and To Hour, select the start and stop times of the restrictions that will be in place. WR850 3-33 Section 3 Configuration Step 6: At the end of each line, check the Enabled box to engage the filters. Step 7: At the bottom of the page, click the Apply action button. Blocking Specific Types of Internet Use at Particular Times When using the LAN Usage Filters, you have the additional opportunity to establish Internet controls on specific ports. Since some Internet applications will open and close specific ports in order to function, you can block the use of those applications by specific client PCs by blocking the use of those ports by those PCs. For this example, we assume that: · · · · there is one PC to be restricted, the IP address assigned to that PC is 192. 168. 10. 4, the PC is to be restricted from using an Internet game Monday through Friday, all day, and the Internet game to be restricted requires port 28910 for TCP communications. Step 1: At LAN Usage Filters, under LAN IP Address Range, enter the IP address(es) of the PC(s) to be restricted. NOTE: If you intend to restrict multiple clients in the home, it is best to assign them consecutive IP addresses, to allow you to enter a single LAN IP Address Range without disabling another client, while conserving LAN Usage Filters at the same time. 3-34 WR850 Configuration Section 3 Step 2: Under Protocol, select the protocol which applies to the communications to be restricted. Step 3: Under Destination Port Range, enter the port(s) to be restricted. Step 4: Under From Day and To Day, select the first day the restrictions should be in place, and then the first day the restrictions should no longer be in place. Step 5: Under From Hour and To Hour, select the start and stop times of the restrictions that will be in place. Step 6: At the end of each line, check the Enabled box to engage the filters. Step 7: At the bottom of the page, click the Apply action button. WR850 3-35 Section 3 The ROUTING Configuration Page Configuration This page allows you to configure port forwarding and triggering rules for your WR850. These rules can allow specific clients on your local network to run and share certain programs that use the Internet. Figure 3-5 ROUTING Page 3-36 WR850 Configuration ROUTING Page ­ Commonly Used Configuration Options Section 3 None of the configuration options on the ROUTING Page typically require any adjustment from factory defaults, to support most typical uses of the WR850 as a wired/wireless router. Therefore, none of the configuration options on the ROUTING Page are highlighted in white. ROUTING Page configuration options are provided primarily for advanced users. ROUTING Page ­ All Configuration Options Field DMZ IP Address: (ADVANCED) Description Sets one device on your local network (specified by IP address) to be a De-militarized Zone (DMZ). A DMZ receives all broadband communication requests that might otherwise be blocked by the router's firewall, as is often needed for real-time Internet gaming. Leave this field blank if no DMZ is desired. NOTE: This setting is only used if Operation Mode on the BASIC Page is set to Router. FACTORY DEFAULT: (blank) Port Forwards: (ADVANCED) Sets rules for forwarding inbound broadband communications, destined to specific WAN ports, to specific clients on your local network (specified by IP address). You may optionally specify a destination port range, on the LAN side of the WR850, as well. This feature can be particularly useful to support a web server, or other special service, on your local network. NOTE: These settings are only used if Operation Mode on the BASIC Page is set to Router. You can store up to 20 port forwarding rules, and selectively enable one or more of them when desired, using the Enabled checkbox at the end of each row. NOTE: Port forwards will be applied in the order in which they are listed on this page. For each port forward, the following 3 items can be entered: (1) WAN Port Range: These two fields ("Start" and "End") define a range of WAN ports that will be monitored as part of the port forward. (continued on next page) WR850 3-37 Section 3 Configuration Port Forwards: (continued) To forward communications from a single port, enter the same port number in both fields. This information must be entered for each port forward. FACTORY DEFAULT: (blank) (2) LAN IP Address: Sets the client on your local network (specified by IP address) to which communications will be forwarded. This information must be entered for each port forward. FACTORY DEFAULT: (blank) (3) LAN Port Range: These two fields ("Start" and "End") define a range of LAN ports to which communications will be forwarded. To forward to a single port, enter the same port number in both fields. This information is optional for each port forward. FACTORY DEFAULT: (blank) Port Triggers: (ADVANCED) Sets rules for forwarding inbound communications (from your broadband connection) based on specific outbound communications (or "triggers") from a LAN client. Specifically, if a LAN client transmits to the Internet using any of a set of outbound destination ports, they will be forwarded Internet responses that are received on a corresponding set of inbound destination ports. You may optionally specify a destination port range for forwards, on the LAN side of the WR850, as well. This feature can be particularly useful to support real-time games which require Internet responses to game activity. These responses might otherwise be blocked by the WR850 firewall. NOTE: These settings are only used if Operation Mode on the BASIC Page is set to Router. You can store up to 20 port triggers, and selectively enable one or more of them when desired, using the Enabled checkbox at the end of each row. [. . . ] Switch On an Ethernet network, a switch filters frames based on the MAC address, in a manner similar to a bridge. A switch is more advanced because it can connect more than two segments. T TCP Transmission Control Protocol on OSI Transport Layer 4 provides reliable transport over the network for data transmitted using IP (network layer three). It is an end-to-end protocol defining rules and procedures for data exchange between hosts on top of connectionless IP. TCP uses a timer to track outstanding packets, checks error in incoming packets, and retransmits packets if requested. [. . . ]