![]() ![]() PacketSource := gopacket.NewPacketSource(handle, handle.LinkType())įor packet := range packetSource. Use the handle as a packet source to process all packets Handle, err = pcap.OpenLive(device, snapshot_len, promiscuous, timeout) Find devices package mainįmt.Println("Description: ", device.Description)įmt.Println("Devices addresses: ", device.Description)įor _, address := range device.Addresses Open Device for Live Capture package main You might also want to check out the gopacket project on GitHub and documentation on GoDoc gopacket. You may need to set GOARCH=386 if you get an error like cc1.exe: sorry, unimplemented: 64-bit mode not compiled in. These examples should work in Linux/Mac using libpcap and on Windows with WinPcap. ![]() You can learn how to use libpcap in C for a deeper understanding. Cyber Defence Exercises (CDX) This category includes network traffic from exercises and competitions, such as Cyber Defense Exercises (CDX) and red-team/blue-team competitions. Since gopacket is built on top of libpcap, I highly recommend you understand how that library works. Publicly available PCAP files This is a list of public packet capture ( PCAP) repositories, which are freely available on the Internet. You will need go, libpcap and the gopacket package. Here is a recording of that presentation. UPDATE: Since writing this article, I had the privilege of speaking at GopherCon 2016 in Denver, CO. ![]() It provides additional functionality and takes advantage of Go things like interfaces, which makes it incredibly powerful. It is more than just a simple wrapper though. The gopacket package provides a Go wrapper for libpcap written in C. ![]() It contains 14 chapters with various red and blue team topics covered. Automatic PCAP Downloads To export PCAPs automatically, create a PCAP Export rule. Select Capture > Summary, then select Actions > Download PCAP Any filters on the capture interfaded PCAP. If you found this page helpful you should check out the book. Click Analyze PCAP and then click Download PCAP Any packet-analysis filters are applied to the downloaded PCAP. UPDATE: My book, Security with Go, is now published. ![]()
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