# TCP/IP Monitor

The TCP/IP Monitor allows you to monitor network traffic between a client and server.

## Creating a new TCP/IP Monitor

A new TCP/IP monitor configuration can be added by selecting the down arrow from the toolbar and selecting Properties... The TCP/IP Monitor preferences page is displayed.

## Viewing client/server network traffic

Once a monitor has been created and started you can see the traffic sent between the client and server by directing the client to make requests from the TCP/IP monitor. This means if your client makes requests from http://www.example.com it should be modified to make requests from the port the TCP/IP Monitor is listening on (as you specified when creating the monitor). The traffic, once captured, can be seen in the TCP/IP Monitor's traffic window. Selecting a specific request/response pair will display the relevant traffic in the request and response windows.

## Resending a request to the server

You can resend a captured request to the server. Right click on the request you want to resend and select Resend request.
You can also modify a request you want to resend by selecting Modify request. A new request will show in the TCP/IP Monitor's traffic window with an icon denoting that it has not yet been sent. Modify the request in the request window. When you are finished modifying the request right click on the request in the TCP/IP monitor's traffic window and select Send Modified Request.