User’s Guide for the WG602 v3 54 Mbps Wireless Access Point

MAC Addresses and ARP

An IP address alone cannot be used to deliver data from one LAN device to another. To send data between LAN devices, you must convert the IP address of the destination device to its media access control address (MAC address). Each device on an Ethernet network has a unique MAC address, which is a 48-bit number assigned to each device by the manufacturer. The technique that associates the IP address with a MAC address is known as address resolution. Internet Protocol uses the ARP to resolve MAC addresses.

If a device sends data to another station on the network and the destination MAC address is not yet recorded, ARP is used. An ARP request is broadcast onto the network. All stations on the network receive and read the request. The destination IP address for the chosen station is included as part of the message so that only the station with this IP address responds to the ARP request. All other stations discard the request.

The station with the correct IP address responds with its own MAC address directly to the sending device. The receiving station provides the transmitting station with the required destination MAC address. The IP address data and MAC address data for each station are held in an ARP table. The next time data is sent, the address can be obtained from the address information in the table.

For more information about address assignment, refer to the IETF documents RFC 1597, Address Allocation for Private Internets, and RFC 1466, Guidelines for Management of IP Address Space.

Internet Security and Firewalls

When your LAN connects to the Internet through a router, an opportunity is created for outsiders to access or disrupt your network. A NAT router provides some protection because by the very nature of the process, the network behind the router is shielded from access by outsiders on the Internet. However, there are methods by which a determined hacker can possibly obtain information about your network or at the least can disrupt your Internet access. A greater degree of protection is provided by a firewall router.

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Network, Routing, Firewall, and Cabling Basics

202-10060-01, September 2004

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NETGEAR WG602NA manual Internet Security and Firewalls, MAC Addresses and ARP

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.