The PC host initiates a TCP three-way handshake with the Google web server to establish a connection. The PC's IP address is its source address, and its MAC address can be found using ipconfig. Frame 15 shows the DNS query from the PC to resolve www.google.com. Frame 16 is the response from the DNS server with the IP address. Frame 17 shows the flags set in the initial request from the PC to start a session. The source port is classified as ephemeral and the destination port is classified as well-known.