EtherFast Cable/DSL Router with 8-Port Switch

•Start Port. Enter the starting port number of the Forwarded Range.

•End Port. Enter the ending port number of the Forwarded Range.

When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes. For further help on this tab, click the Help button.

UPnP Forwarding

The UPnP Forwarding screen displays preset application settings as well as options to customize port services for other applications. See Figure 7-20.

UPnP Forwarding

•Application. Ten preset applications are preset. You can specify up to five additional applications in the available fields.

The preset applications are among the most widely used Internet applications. They include the following:

•FTP (File Transfer Protocol). A protocol used to transfer files over a TCP/IP network (Internet, UNIX, etc.). For example, after developing the HTML pages for a website on a local machine, they are typically uploaded to the web server using FTP.

•Telnet. A terminal emulation protocol commonly used on Internet and TCP/IP-based networks. It allows a user at a terminal or computer to log onto a remote device and run a program.

•SMTP (Simple Mail Transfer Protocol). The standard e-mail protocol on the Internet. It is a TCP/IP protocol that defines the message format and the message transfer agent (MTA), which stores and forwards the mail.

•DNS (Domain Name System). The way that Internet domain names are located and translated into IP addresses. A domain name is a meaningful and easy-to-remember “handle” for an Internet address.

•TFTP (Trivial File Transfer Protocol). A version of the TCP/IP FTP protocol that has no directory or password capability.

•Finger. A UNIX command widely used on the Internet to find out information about a particular user, such as a telephone number, whether the user is currently logged on, and the last time the user was logged on. The person being “fingered” must have placed his or her profile on the system in order for the information to be available. Fingering requires entering the full user@domain address.

Chapter 7: Using The Router’s Web-based Utility

Figure 7-20: UPnP Forwarding

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UPnP Forwarding

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Linksys BEFSR81 manual UPnP Forwarding
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BEFSR81 specifications

The Linksys BEFSR81 is a highly regarded router that stands as a staple in home networking solutions. With its robust set of features, it has catered to both casual users and technology enthusiasts alike. The BEFSR81 is primarily known for its versatile connectivity options, making it a popular choice for users looking to connect multiple devices without compromising speed or reliability.

One of the standout features of the Linksys BEFSR81 is its ability to support up to eight Ethernet ports, allowing for extensive wired connections. This is particularly beneficial for users with multiple devices that require stable internet access, such as gaming consoles, desktop computers, and smart home devices. Additionally, the router supports advanced networking features, including DHCP server capabilities and network address translation (NAT), further optimizing performance and security.

In terms of security, the BEFSR81 offers stateful packet inspection firewalls and support for Wi-Fi Protected Access (WPA) encryption, ensuring that users' data and privacy are well-protected. It also includes features like MAC address filtering, which allows users to create a whitelist of devices permitted to access the network, bolstering security even further.

The Linksys BEFSR81 adopts a user-friendly interface that simplifies the setup process, making it accessible for individuals with varying levels of technical expertise. Users can manage their network settings effortlessly via the web-based management interface, enabling them to configure passwords, adjust settings, and monitor network activity.

Moreover, the BEFSR81 supports Quality of Service (QoS) features that prioritize bandwidth for certain applications, ensuring that streaming services, online gaming, and video conferencing perform optimally without lag. This is particularly advantageous in households with numerous users engaging in data-intensive activities simultaneously.

Overall, the Linksys BEFSR81 remains a reliable choice for those seeking a well-rounded router that combines a feature-rich design with robust performance. Whether for home office use, casual browsing, or intensive gaming, the BEFSR81 meets the demands of modern networking needs, ensuring a seamless and secure internet experience for its users.
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