Tshark Filter to create new smaller PCAP

[George Vandelet <george_vandelet () yahoo com>]

Super Users.

I have a PCAP file that is over 100M.  I wish to open it but my GUI version of Wireshark 32.0.0_ofc14 but it crashes 
each time I try to open it.  I have heard that one can use Tshark to open huge PCAP files then perform a filter to 
focus in on the type of traffic and then save the results to a different PCAP file.  Hopefully the new PCAP file will 
be smaller than the original and I can open it with the GUI version of Wireshark.  


The man page for Tshark is too cryptic for me.  I am hoping that someone has done this before and can guide me to which 
options I need to choose on the TSHARK command to achieve what I want.  I would prefer to filter on a MAC address but 
can filter on an IP address. 


Can someone provide me with an example Tshark command that I could use to accomplish this?

Lets assume the following:
    test.pcap - is the name of the original file that is huge

    my filter criteria is either an IP address of 1.1.1.1 or a MAC is 01:01:01:01:01:01
    testout.pcap - is the name of the file I wish to make using one of the above filters that hopefully will contain 
only a small amount of packets and result in a PCAP file that I can open with the GUI version of Wireshark.

Thanks,

George

___________________________________________________________________________
Sent via:    Wireshark-users mailing list <wireshark-users () wireshark org>
Archives:    http://www.wireshark.org/lists/wireshark-users
Unsubscribe: https://wireshark.org/mailman/options/wireshark-users
             mailto:wireshark-users-request () wireshark org?subject=unsubscribe