Below is a collection of computer network diagrams.  They are classified into major categories and often contain links and notes about the specific network type. 

 

Basic Ethernet Networks

Ethernet crossover cable

Ethernet Hub or Switch

Wireless Ethernet (802.11b, WiFi)

No Wireless Access Point (AdHoc mode)

Wireless Access Point (Infrastructure Mode)

Wireless Access point acting as a bridge to a wired Ethernet network

Windows XP acting as a bridge between an 802.11b wireless network and a wired ethernet network

Software (Single IP Address)

Two computers with ethernet crossover cable running using ICS or NAT or Proxy software. Two computers with ethernet hub using ICS or NAT or Proxy software.

Hardware Solutions (Single IP Address)

Cable/DSL router with built in switch Cable/DSL router with 1 port and Ethernet hub/switch Cable/DSL Router with Ethernet and Wireless Ethernet LAN built in Cable/DSL router with Ethernet Plus Wireless Access Point (bridge type) Wireless Access Point, Router variety, all computers wireless Linux based Router

Multiple IP's

Two or more IP's and a hub connected directly to your cable modem or dsl modem