Monday, September 14, 2009

Ad Hoc Wireless Network Diagram

Common layout for WiFi-based home networks

This diagram illustrates use of a so-called ad hoc wireless setup in a home network. See below for a detailed description of this layout.

Key Considerations - Using ad hoc Wi-Fi mode eliminates the need for a network router or access point in a wireless home network. With ad hoc wireless, you can network computers together as needed without needing to be in reach of one central location. Most people use ad hoc Wi-Fi only in temporary situations to avoid potential security issues.
Optional Components - Networking an ad hoc layout for Internet access, printers, or game consoles and other entertainment devices is not required for the rest of the home network to function. Simply omit any of these components shown that do not exist in your layout.
Limitations - All devices connecting via ad hoc wireless must possess a working Wi-Fi network adapter. These adapters must be configured for "ad hoc" mode instead of the more typical "infrastructure" mode.
Because of their more flexible design, ad hoc Wi-Fi networks are also more difficult to keep secure than those using central wireless routers / access points.
Ad hoc Wi-Fi networks support a maximum of 11 Mbps bandwidth, while other Wi-Fi networks may support 54 Mbps or higher.

Friday, September 4, 2009

Direct Connection Network Diagram

Common layout for simple Ethernet home networks


This diagram illustrates direct connection without a router or other central device on the home network. See below for a detailed description of this layout.


Key Considerations - Direct connection can be achieved with several different types of cabling. Ethernet cabling is the most common, but even simpler (slower) alternatives exist including RS-232 serial cable, and parallel cable.

Direct Connection is common for game consoles to support two-player network gaming (e.g., Xbox System Link).

Optional Components - Connecting to the Internet requires that one computer possess two network adapters - one to support the Internet connection and one to support the second computer. Additionally, Internet connection sharing software must be installed to allow the second computer Internet access. If Internet connectivity is not necessary, these things can be omitted from this layout.

Limitations - Direct connection works only for a single pair of computers / devices. Additional devices cannot join such a network, although other pairs can be connected separately as shown above.