Which filter is used in Wireshark for capturing all type of traffic content?

How do you display filter macros in Wireshark?

I've been looking at Wireshark recently, and have seen a couple of things that just don't make sense.

Wireshark displays MAC filters as a list of the MAC addresses in each line in hex, followed by a number which is not displayed at all in the capture (but can be determined from packet length). This leads me to believe that it is a filter for the capture to the dissector, and not in the raw datastream from the capture? However, I have an interesting filter that seems to be in both of those roles, and I'd like to be able to display it in my captures without knowing exactly how it works. This is a capture with a bunch of IP traffic, but only traffic to port 2379:

My basic question is, when running Wireshark on these types of captures, do you use any kind of macro's/regular expressions to display/filter the raw ip/port numbers of the packets? How does this work? (As stated, there are several posts on the forum that sorta answer this, but I'd rather understand it for myself.) If that's all it was, this would be fairly straight forward, I just want to make sure. In my case the filter says I am filtering IP address/port, I'd simply go into the capture and filter by those numbers, or display all ports if I was filtering by port. However, as I mentioned there are more things that I am not sure about here that make me think the filter is in multiple places?

For example, the filter below has no MAC filtering, and I'd expect something like this in my capture. Instead it displays nothing. Does that look right? As an added bonus, when I view the options for the filter in the "Options" tab, it says "Filter data based on values in the captured data". It also says "Filter data based on values in the filter options". But for some reason it doesn't show either of these in the capture:

I'm pretty new to Wireshark, so I'm sure this is probably very basic for you, but I'm just looking for verification and clarity before getting down to the work. There are a lot of good people on here and so I'm hoping one of you guys knows this! Thanks! Re: ?

How do I filter content in Wireshark?

I'm currently trying to filter out content from some of the packets that are being captured.

What I'd like to do is filter the packets that have a certain string in their contents, and the string could be anything. The string could be at the start of the packet, somewhere in the middle, or anywhere else in the packet. Is there a way to filter on this?

You should be able to use tcp.port == 1025 as a filter.

To look for a specific string anywhere in a packet, you'll need to use an expression that uses tshark. Use tcp.port == 1025 and contains(tcp.

How do I filter by string in a packet in Wireshark?

I am using Wireshark 2.

3.1 on my Ubuntu Linux machine and want to filter out certain strings that are in the packets being sent to my computer. For example, I want to filter out some specific packets that include:

IPV6. SSLv2. SSLv3. As far as I can tell, this is not possible to do using the usual text string filters or other "regular expression" type filters. Is there any way to filter by a string that includes IPV6, SSLv2, SSLv3? I looked into using "and" or "not" operators to try and work with it, but it didn't seem to work that way.

The "String" field of each Capture element has a list of the string you want to match. The fields "Exact String" and "Substring" can be used to filter based on those strings. You can also create your own string filters if they aren't in the list.

The string fields (aside from exact) are substrings, exact, starts-with, ends-with, and regular expressions (including Perl regular expressions). They have the same syntax as regular expressions, but they're not applied recursively; you can use them directly in expressions.

Which filter is used in Wireshark for capturing all type of traffic content?

Is it tcp?

I tried to capture all IP packets of a certain interface by using tcp filter but the program didn't worked as expected and it captured only traffic with specific source IP address . It does not capture all the other traffic like HTTP, TCP, UDP Is there another filter to capture all type of traffic in Wireshark? Or. Can anyone tell me how to use tcp filter ( or something else ) to capture all types of data on a specific interface. Thanks. It should be: tcp and ip and (port = 5555). This should capture all TCP traffic on port 5555.