Provides tcpdump-like functionality: dumps packet contents on the module output, and optionally records them into a PCAP file. This module has to be placed into the packet's path, and connected both sides.

This module is deprecated: consider using PcapRecorder, which can be inserted into compound modules non-intrusively (it receives packet data via signals, so existing modules don't need to be reconnected.)

How to use it: The module handles IPv4 packets (IPv4Datagram class), so it should be placed between the IP module and network interfaces (NICs); see description of gates in comments. Other packets are ignored and let through.

Parameters

Name	Type	Default value	Description
dumpFile	string	""
snaplen	int	65535
verbose	bool	false
dumpBadFrames	bool	true	write bad frames to pcap file
dropBadFrames	bool	false	drop frame when frame has bit error.

Gates

Name	Direction	Size	Description
ifIn [ ]	input		input from lower layer
hlIn [ ]	input		input from higher layer
ifOut [ ]	output		output to lower layer
hlOut [ ]	output		output to higher layer

Source code

//
// Provides tcpdump-like functionality: dumps packet contents on the
// module output, and optionally records them into a PCAP file.
// This module has to be placed into the packet's path, and connected
// both sides.
//
// This module is deprecated: consider using PcapRecorder, which
// can be inserted into compound modules non-intrusively (it receives
// packet data via signals, so existing modules don't need to be reconnected.)
//
// <b>How to use it:</b> The module handles IPv4 packets (IPv4Datagram class),
// so it should be placed between the IP module and network interfaces (NICs);
// see description of gates in comments. Other packets are ignored and let
// through.
//
simple TCPDump
{
    parameters:
        string dumpFile = default("");
        int snaplen = default(65535);
        bool verbose = default(false);
        bool dumpBadFrames = default(true); // write bad frames to pcap file
        bool dropBadFrames = default(false); // drop frame when frame has bit error.
    gates:
        input ifIn[];   // input from lower layer
        input hlIn[];   // input from higher layer
        output ifOut[];   // output to lower layer
        output hlOut[];   // output to higher layer
}

File: src/inet/common/packet/TCPDump.ned

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