Cookies is the technique for retaining clint information. The browser must support the Netscape cookie protocol. If supported, the server sends the information to the client as name/value pairs. Obviously, this increases network traffic, but can offer substantial advantages to large access servers.
There are several other techniques for maintaining this information. However, they all have limited application. Client URL encoding causes a large increase in network traffic. Using IP addresses on the server only works for clients using fixed IP addresses. This might work for some intranet applications; for general use, it is worthless. For more details, refer to the LiveWire documentation.