PcapPlusPlus enables decoding and forging capabilities for a large variety of network protocols
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// parse the raw packet into a parsed packet
pcpp::Packet parsedPacket(&rawPacket);
// check if it's an IPv4 packet
if (parsedPacket.isPacketOfType(pcpp::IPv4)) {
// extract source and dest IPs
pcpp::IPv4Address srcIP =
parsedPacket.getLayerOfType()->getSrcIPv4Address();
pcpp::IPv4Address destIP =
parsedPacket.getLayerOfType()->getDstIPv4Address();
// print source and dest IPs
printf("Source IP is '%s'; Dest IP is '%s'\n",
srcIP.toString().c_str(), destIP.toString().c_str());
}PcapPlusPlus is designed to be efficient and lightweight. It enables amazingly fast packet processing with minimum overhead
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PcapPlusPlus is fully supported on Windows, MacOS, Linux, Android and FreeBSD. You can download pre-built binaries for each platform or build it from source. PcapPlusPlus is available in popular package managers such as Homebrew and Conan
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PcapPlusPlus provides an easy-to-use interface for reading and writing network packets into files. It supports the most popular file formats which are PCAP and PCAPNG
Learn More// create a pcap file reader
pcpp::PcapFileReaderDevice pcapReader("input.pcap");
pcapReader.open();
// create a pcapng file writer
pcpp::PcapNgFileWriterDevice pcapNgWriter("output.pcapng");
pcapNgWriter.open();
// raw packet object
pcpp::RawPacket rawPacket;
// read packets from pcap reader and write pcapng writer
while (pcapReader->getNextPacket(rawPacket)) {
pcapNgWriter.writePacket(rawPacket);
}PcapPlusPlus contains unique implementation of packet reassembly techniques.
TCP Reassembly which supports TCP retransmission, out-of-order TCP packets and missing TCP data
IP Fragmentation and Defragmentation to create and reassemble IPv4 and IPv6 fragments
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