Appendix C Network, Routing, Firewall, and Cabling Basics

This chapter provides an overview of IP networks, routing, and wireless networking.

As you read this document, you may be directed to various RFC documents for further information. An RFC is a Request For Comment (RFC) published by the Internet Engineering Task Force (IETF), an open organization that defines the architecture and operation of the Internet. The RFC documents outline and define the standard protocols and procedures for the Internet. The documents are listed on the World Wide Web at www.ietf.org and are mirrored and indexed at many other sites worldwide.

Basic Router Concepts

Large amounts of bandwidth can be provided easily and relatively inexpensively in a local area network (LAN). However, providing high bandwidth between a local network and the Internet can be very expensive. Because of this expense, Internet access is usually provided by a slower-speed wide-area network (WAN) link such as a cable or DSL modem. In order to make the best use of the slower WAN link, a mechanism must be in place for selecting and transmitting only the data traffic meant for the Internet. The function of selecting and forwarding this data is performed by a router.

What is a Router?

A router is a device that forwards traffic between networks based on network layer information in the data and on routing tables maintained by the router. In these routing tables, a router builds up a logical picture of the overall network by gathering and exchanging information with other routers in the network. Using this information, the router chooses the best path for forwarding network traffic.

Routers vary in performance and scale, number of routing protocols supported, and types of physical WAN connection they support. The 54 Mbps Wireless Access Point WG602 v3 is a small office router that routes the IP protocol over a single-user broadband connection.

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WG602NA specifications

The NETGEAR WG602NA is a wireless access point that has garnered attention for its robust performance and reliability in various networking environments. Designed primarily for home and small office use, this device offers users an efficient way to expand their network's coverage, providing both flexibility and convenience in connectivity.

One of the standout features of the WG602NA is its adherence to the IEEE 802.11g standard, which allows it to deliver wireless connectivity speeds of up to 54 Mbps. This speed makes it suitable for a variety of online activities, including web browsing, streaming videos, and online gaming. The device also supports backward compatibility with 802.11b devices, ensuring that older devices can still connect seamlessly.

The WG602NA utilizes advanced wireless security protocols to protect users' data. It supports Wired Equivalent Privacy (WEP) for basic encryption, as well as Wi-Fi Protected Access (WPA and WPA2) for more robust security measures. This ensures that your network remains secure from unauthorized access and data breaches.

In terms of connectivity, the WG602NA offers a straightforward setup process that is user-friendly, even for those with minimal technological knowledge. The device features a simple web interface that guides users through the configuration process, allowing them to customize settings according to their needs. It also includes a variety of options for network configuration, such as DHCP and static IP addressing, which can accommodate different network setups.

For those looking to set up multiple access points, the WG602NA can be configured to operate in bridge mode, enabling seamless roaming across larger areas without losing connectivity. This feature is particularly beneficial in larger homes or office settings where consistent signal strength is essential.

The compact design of the WG602NA makes it an unobtrusive addition to any setting, and it is equipped with a power over Ethernet (PoE) option, allowing it to be powered through an Ethernet cable. This flexibility facilitates easier installations as there is no need for searching for an electrical outlet nearby.

Overall, the NETGEAR WG602NA is a reliable access point that combines speed, security, and ease of use. Its features make it an excellent choice for individuals or small businesses seeking to enhance their wireless network capabilities, ensuring consistent and secure connectivity for all connected devices.
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