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Hey,

I'm using tshark to analyze some TCP that has no specified protocol, and am using the following filters:

not _ws.malformed and tcp and not tcp.analysis.retransmission and not tcp.analysis.fast_retransmission

I saw that some packets are missing from the stream, and after some investigation, I found out that *shark thinks that this packet (or stream) is IRC for some reason, and that the missing packets are malformed.

I know for certain that this stream does not contain IRC (it is the output of hexdump piped into nc)

How can I tell tshark to not decode any protocol above TCP?

Hey,

I'm using tshark to analyze some TCP that has no specified protocol, and am using the following filters:

not _ws.malformed and tcp and not tcp.analysis.retransmission and not tcp.analysis.fast_retransmission

I saw that some packets are missing from the stream, and after some investigation, I found out that *shark thinks that this packet (or stream) is IRC for some reason, and that the missing packets are malformed.

I know for certain that this stream does not contain IRC (it is the output of hexdump piped into nc)

How can I tell tshark to not decode any protocol above TCP?TCP? Alternatively, is there another way to check for malformed packets, but with regards to TCP or lower layers only?

Hey,

I'm using tshark to analyze some TCP that has no specified protocol, and am using the following filters:

not _ws.malformed and tcp and not tcp.analysis.retransmission and not tcp.analysis.fast_retransmission

I saw that some packets are missing from the stream, and after some investigation, I found out that *shark thinks that this packet (or stream) is IRC for some reason, reason (EDIT: It is because of the port number), and that the missing packets are malformed.

I know for certain that this stream does not contain IRC (it is the output of hexdump piped into nc)

How can I tell tshark to not decode any protocol above TCP? Alternatively, is there another way to check for malformed packets, but with regards to TCP or lower layers only?