How do I show HTTP in Wireshark?

I have a network with multiple endpoints connected through two switches.

The first switch is connected to a server, which in turn connects to a second switch through a WAN interface. I want to see the actual TCP traffic that goes between these endpoints, but I only see the IP traffic.

I do not know why or how to show HTTP traffic. I have tried using the HTTP tab, but it does not display anything.

You probably need to specify the source host in http src, eg http src 192.168.1 and then specify ip tcp port 80, 443 if you're talking HTTP.

That said, you should be able to just capture everything and then see the HTTP headers.

Can Wireshark see HTTP?

I have a network with a wifi point, a router and two laptops.

Both are connected to the router. My first laptop is connected to the wifi point (access point) and the second laptop is connected to the router. I want to sniff the traffic between them.

From the router, the first laptop has an IP address 192.168.X and the second laptop has an IP address 192.Y. I assume the traffic between the two laptops is HTTP (since it works fine on both computers).

I installed wireshark and when I open it, I see that it is able to see the Wifi connection. How can I see the HTTP traffic between the two laptops? You'll need to configure the capture interface to monitor on wlan0. If you don't specify a capture interface then wireshark will listen on all interfaces. If you are monitoring traffic on the wireless interface, then your LAN interface might not be visible and you won't be able to see the HTTP traffic.

When you have configured the capture interface, then you'll need to specify which interfaces are to be captured. The syntax for this is capture interface name.

So to capture only the wifi interface, you could use: sudo wireshark -i wlan0. Similarly, you could use. Sudo wireshark -i wlan0,eth0,eth1,lo. To capture the wireless interface, and only the wired interfaces eth0 and eth1. Note that the interface order is important. In the example above, wireshark will use the wired interface, eth1, as the capture interface. It is possible to add any number of interface names after the capture interface.

Why is Wireshark not picking up HTTPS?

I have been trying to see a session that is streaming over HTTPS.

Wireshark does not seem to recognize the traffic as being HTTPS, just HTTP.

I am using a network analyzer tool called OmniPeek Pro, which does pick up the HTTPS connection. Is there something I have to do to Wireshark or my computer, or my network card, or my router to be able to see HTTPS? I think you've actually captured the data in an "invalid" format (the Wireshark output). I suggest you run tcpdump or tcpflow instead to capture the data and convert it to a more standard format. If you have multiple interfaces, you should also capture on them all so you can see exactly which one is actually receiving the data.

How to filter Wireshark for HTTP?

I am not sure if this is a general question or specific to some particular type of connection.

When I am searching for a particular protocol (say http) it is a lot of effort to have to go through each and every packet trying to see if it is a HTTP packet. Is there a way to filter this in Wireshark?
I am asking because I am using the website, which doesn't work very well if I have to look through each and every packet trying to figure out if it is an HTTP request. Is there a way to have Wireshark filter out all packets that do not start with the string "http://"? Here is one approach: Open Wireshark. Select "File" menu then "New Filter.