In the Web Services recording option's Traffic Analysis > Traffic Filters node, you can provide a filter to drill down on specific requests going to or from a server, by specifying its IP address and port.
Tip: Several external capture tools allow you to filter the IP addresses while capturing the traffic.
You filter the requests by choosing the relevant host IP addresses. The filter can be inclusive or exclusive—you can include only those IPs in the list, or include everything except for those IPs that appear in the list.
For more information, see Create a script by analyzing traffic (Web Services).