That traffic will be shown by Wireshark as 'HTTP', not 'SSDP', and will run over TCP, if it's not 'secure HTTP' ('https') traffic. So, yes, it's an HTTP-based protocol, and, yes, it runs atop UDP rather than TCP.īut it's not what's used for normal Web site access. As that Wikipedia article says, it is 'a text-based protocol based on HTTPU' and 'uses the User Datagram Protocol (UDP) as the underlying transport protocol.' To check if promiscuous mode is enabled, click Capture > Options and verify the “Enable promiscuous mode on all interfaces” checkbox is activated at the bottom of this window.SSDP is the Simple Service Discovery Protocol. If you have promiscuous mode enabled-it’s enabled by default-you’ll also see all the other packets on the network instead of only packets addressed to your network adapter. Wireshark captures each packet sent to or from your system.

You can configure advanced features by clicking Capture > Options, but this isn’t necessary for now.Īs soon as you click the interface’s name, you’ll see the packets start to appear in real time. For example, if you want to capture traffic on your wireless network, click your wireless interface. Capturing PacketsĪfter downloading and installing Wireshark, you can launch it and double-click the name of a network interface under Capture to start capturing packets on that interface. Don’t use this tool at work unless you have permission. Just a quick warning: Many organizations don’t allow Wireshark and similar tools on their networks.

Wireshark http and tcp