User manual MOTOROLA SVG2500 SURFBOARD DIGITAL VOICE WIRELESS GATEWAY

[. . . ] U S ER GU IDE SVG2500 SURFboard® Wireless Voice Gateway SAFETY AND REGULATORY INFORMATION IMPORTANT SAFETY INSTRUCTIONS -- when using your telephone equipment, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons, including the following: · Read all of the instructions listed here and/or in the user manual before you operate this device. Give particular attention to all safety precautions. Retain the instructions for future reference. This device must be installed and used in strict accordance with manufacturer's instructions as described in the user documentation that is included with the device. [. . . ] This enables incoming requests on specific port numbers to reach web servers, FTP servers, mail servers, etc. so that they can be accessible from the public Internet. A table of commonly used Port numbers is also displayed on the page for your convenience. To map a port, you must enter the range of port numbers that should be forwarded locally and the IP address to which traffic to those ports should be sent. If only a single port specification is desired, enter the same port number in the "start" and "end" locations for that IP address. The ports used by some common applications are: · · · · · · FTP: 20, 21 HTTP: 80 NTP: 123 Secure Shell: 22 SMTP e-mail: 25 Telnet: 23 79 6 SVG2500 ADVANCED PAGES Advanced Port Triggers Page This page allows you to configure dynamic triggers to specific devices on the LAN. This allows for special applications that require specific port numbers with bi-directional traffic to function properly. Applications such as video conferencing, voice, gaming, and some messaging program features may require these special settings. The Advanced Port Triggers are similar to Port Forwarding except that they are not static ports held open all the time. When the Configuration Manager detects outgoing data on a specific IP port number set in the "Trigger Range, " the resulting ports set in the "Target Range" are opened for incoming (sometimes referred to as bi-directional ports) data. If no outgoing traffic is detected on the "Trigger Range" ports for 10 minutes, the "Target Range" ports will close. This is a safer method for opening specific ports for special applications (e. g. video conferencing programs, interactive gaming, file transfer in chat programs, etc. ) because they are dynamically triggered and not held open constantly or erroneously left open via the router administrator and exposed for potential hackers to discover. Field Trigger Range Start Port End Port Target Range Start Port End Port Protocol Enable Description The starting port number of the Port Trigger range. The ending port number of the Port Trigger range. The starting port number of the Port Trigger range. The ending port number of the Port Trigger range. Choice, TCP, UDP, or Both Select checkbox to activate the IP port triggers. 80 6 SVG2500 ADVANCED PAGES Advanced DMZ Host Page This page allows you to specify the "default" recipient of WAN traffic that NAT is unable to translate to a known local PC. The DMZ (De-militarized Zone) hosting (also commonly referred to as "Exposed Host") can also be described as a computer or small sub-network that sits between the trusted internal private LAN and the untrusted public Internet. You may configure one PC to be the DMZ host. This setting is generally used for PCs using "problem" applications that use random port numbers and do not function correctly with specific port triggers or the port forwarding setups mentioned earlier. If a specific PC is set as a DMZ Host, remember to set this back to "0" when you are finished with the needed application, since this PC will be effectively exposed to the public Internet, though still protected from Denial of Service (DoS) attacks via the Firewall. Click Apply to activate the selected computer as the DMZ host. 81 6 SVG2500 ADVANCED PAGES Advanced Routing Information Protocol Setup Page This page allows you to configure Routing Information Protocol (RIP) parameters related to authentication, destination IP address/subnet mask, and reporting intervals. RIP automatically identifies and uses the best known and quickest route to any given destination address. To help reduce network congestion and delays, the Advanced RIP setup is used in WAN networks to identify and use the best known and quickest route to given destination addresses. RIP is a protocol that requires negotiation from both sides of the network (i. e. , CMRG and CMTS). [. . . ] USB supports data transfer rates of 12 Mbps and plug-and-play installation. You can connect up to 127 devices to a single USB port. Unshielded twisted pair (wire) A virtual local area network is group of devices on different LAN segments that are logically configured to communicate as if they are connected to the same wire. Voice over Internet Protocol is a method to exchange voice, fax, and other information over the Internet. [. . . ]