NETGEAR WGE111 user manual Subnet Addressing, Example of Subnetting a Class B Address

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User Manual for the NETGEAR WGE111 Wireless Game Adapter

Subnet Addressing

By looking at the addressing structures, you can see that even with a Class C address, there are a large number of hosts per network. Such a structure is an inefficient use of addresses if each end of a routed link requires a different network number. It is unlikely that the smaller office LANs would have that many devices. You can resolve this problem by using a technique known as subnet addressing.

Subnet addressing allows us to split one IP network address into smaller multiple physical networks known as subnetworks. Some of the node numbers are used as a subnet number instead. A Class B address gives us 16 bits of node numbers translating to 64,000 nodes. Most organizations do not use 64,000 nodes, so there are free bits that can be reassigned. Subnet addressing makes use of those bits that are free, as shown below.

Class B

Network

Subnet

Node

Figure 5-2: Example of Subnetting a Class B Address

A Class B address can be effectively translated into multiple Class C addresses. For example, the IP address of 172.16.0.0 is assigned, but node addresses are limited to 255 maximum, allowing eight extra bits to use as a subnet address. The IP address of 172.16.97.235 would be interpreted as IP network address 172.16, subnet number 97, and node number 235. In addition to extending the number of addresses available, subnet addressing provides other benefits. Subnet addressing allows a network manager to construct an address scheme for the network by using different subnets for other geographical locations in the network or for other departments in the organization.

Although the preceding example uses the entire third octet for a subnet address, note that you are not restricted to octet boundaries in subnetting. To create more network numbers, you need only shift some bits from the host address to the network address. For instance, to partition a Class C network number (192.68.135.0) into two, you shift one bit from the host address to the network address. The new netmask (or subnet mask) is 255.255.255.128. The first subnet has network number 192.68.135.0 with hosts 192.68.135.1 to 129.68.135.126, and the second subnet has network number 192.68.135.128 with hosts 192.68.135.129 to 192.68.135.254.

B-4

Understanding IP Addresses

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Contents NETGEAR, Inc Technical Support Iii Vcci Statement Contents Chapter Web Configuration Glossary Contents Chapter About This Manual Audience, Conventions, ScopeHow to Use this Manual Html version of this manualHow to Print this Manual About This Manual About the Netgear WGE111 Wireless Game Adapter Chapter IntroductionKey Features and Related Netgear Products What’s in the Box?Introduction Status Indicators and Ports of the WGE111 LED DescriptionsReset Push Button Reset ButtonIntroduction Chapter Basic Setup Preparing to Install Your WGE111 Wireless Game AdapterPlacement and Range Guidelines System RequirementsMode Switch Position Your System Operating ModesWhat you do Personal Computer Plug-and-Go Scenario Dynamic IP using Dhcp Planning the WGE111 Wireless Game Adapter ConfigurationPlanning for TCP/IP Configuration Fixed IPAuthentication Scheme Selection Understanding WEP Authentication and EncryptionSubnet mask Encryption Strength Choices Using the Netgear Smart Wizard Configuration Assistant Understanding WPA-PSK Encryption SecurityPower Ethernet Select the wireless network Basic Setup Select the TCP/IP Settings Basic Setup Chapter Web Configuration Configuring the Wireless Game Adapter Using TCP/IPConnecting to the Wireless Game Adapter Viewing the Wireless Game Adapter StatusWireless Settings Status screenIP Settings Configuring the Adapter for Infrastructure Mode AccessDevice Information Infrastructure mode configuration screen Data RateAuthentication Type Using WEP Security EncryptionWireless Security Network Name SsidManual Entry Mode Configuring the Wireless Game Adapter for Ad-Hoc ModeUsing WPA-PSK Security Encryption Automatic Key Generation PassphraseAd-Hoc mode configuration screen Viewing the Wireless Networks Available Configuring the IP SettingsIP Settings configuration screen Changing the WGE111 Wireless Game Adapter Password Upgrading the FirmwareRestoring the Factory Defaults Restore Factory Defaults screenChapter Troubleshooting Go to Troubleshooting the TCP/IP Settings Using Ping onSymptom Cause Solution Basic TipsWireless router or access point, wait, and then See Using the Netgear Smart Wizard Frequently Asked Questions Cannot configure the WGE111 from a browserTroubleshooting the TCP/IP Settings Using Ping Troubleshooting the Web Configuration InterfaceRestoring the Default Configuration and Password Troubleshooting Appendix a Technical Specifications Technical Specifications Appendix B Understanding IP Addresses IP Addresses and the InternetThree Main Address Classes Netmask Subnet Addressing Example of Subnetting a Class B AddressNetmask Notation Translation Table for One Octet Private IP Addresses Address Resolution Protocol IP Configuration by DhcpUnderstanding IP Addresses Wireless Networking Overview Appendix C Wireless Networking BasicsInfrastructure Mode Ad Hoc Mode Peer-to-Peer Workgroup Authentication and WEPNetwork Name Extended Service Set Identification Essid Authentication Open System Authentication802.11b Authentication Open System Steps 802.11b Authentication Shared Key Steps Do Not Use WEPWEP Configuration Options Key SizeWireless Channels WPA Wireless Security Radio frequency channels used are listed in the table belowHow Does WPA Compare to WEP? What are the Key Features of WPA Security? How Does WPA Compare to Ieee 802.11i?Wireless Networking Basics Figure C-3 WPA Overview Access point replies with an EAP-request identity message WPA Data Encryption Key Management Temporal Key Integrity Protocol Tkip Is WPA Perfect? Product Support for WPAChanges to Wireless Network Adapters Changes to Wireless Access PointsWPA two-phase authentication New WPA information elementChanges to Wireless Client Programs 802.1Q List of Glossary Terms1000BASE-T 802.3Dhcp Internet service provider NIC Wins Glossary Index NumericsRFC

WGE111 specifications

The NETGEAR WGE111 is a wireless gaming adapter designed to enhance the gaming experience for console players, allowing them to connect their gaming console to a wireless network effortlessly. This device caters particularly to gamers who wish to enjoy the benefits of wireless connectivity without compromising on performance or speed.

One of the primary features of the WGE111 is its support for the IEEE 802.11g standard, providing data transfer rates of up to 54 Mbps. This speed is essential for online gaming, where lag can significantly impact performance. The adapter ensures a stable and reliable connection, reducing latency and allowing gamers to immerse themselves fully in their favorite titles.

The device is compatible with a wide range of gaming consoles, including PlayStation 2, Xbox, and Nintendo Wii, making it a flexible solution for gaming setups. The WGE111 is equipped with a straightforward Ethernet port, enabling easy connectivity with consoles that lack built-in Wi-Fi capabilities.

Reliability is a notable characteristic of the WGE111, thanks in part to its advanced wireless technologies. With features like WEP and WPA/WPA2 encryption, the adapter ensures that the user’s network remains secure from unauthorized access. Additionally, the WGE111 has a strong range and can maintain a solid connection even in larger homes, providing flexibility in device placement.

Installation of the WGE111 is user-friendly, with a simple plug-and-play setup. This allows gamers to quickly connect their consoles to the router without extensive configuration or technical expertise. The device also includes LED indicators that provide real-time feedback on connection status, simplifying troubleshooting and network management.

Another advantage of the NETGEAR WGE111 is its compact and lightweight design, making it portable and easy to relocate. Whether transitioning between different rooms or even taking it to a friend's house, players can enjoy the convenience of wireless gaming without being tethered to a physical connection.

In summary, the NETGEAR WGE111 wireless gaming adapter is an excellent choice for gamers looking to enhance their online experience. With its high-speed connectivity, compatibility with multiple consoles, robust security features, and ease of setup, the WGE111 stands out as a viable option for anyone looking to enjoy wireless gaming without sacrificing performance.
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