When using the Analyzing Traffic method, you need to specify a capture file containing client/server traffic. VuGen supports capture files with the following extensions: .cap, .pcap, .lrcap, .saz, and .har.
When creating a script through traffic analysis, you will need to specify the IP to analyze. The Recording Wizard provides two methods to specify which IP address's traffic to include in the script. Traffic is identified either from the server side or from the client side. You will need to specify which IP address's traffic, and either the client or server side, to include in the script.
Server Side (Destination)
You can configure multiple IP addresses on one server. For example you may be running SMTP , FTP and a web server all on the same computer with unique IP addresses. When the sniffer agent creates the capture file it will include all events to all the services on the server. However, by configuring server side traffic, you can specify the IP address and port where your application under test resides. This method is useful when you are certain that only one client is communicating with the server.
Client Side (Source)
You can identify the client that has been communicating with the server as the IP address to analyze. This way, only the events from the client's IP address will be included in the script VuGen will generate.
You can specify additional IP addresses to either include or exclude during code generation Recording Options > Traffic Analysis > Traffic Filters. For details, see Traffic Analysis > Traffic Filters Recording Options.