ngrep (network grep) is a network packet analyzer written by Jordan Ritter. It has a command-line interface, and relies upon the pcap library and the GNU regex library.

ngrep is a powerful command line tool for searching and analyzing network traffic using regular expressions. Similar to the standard grep utility, ngrep allows you to search for text patterns inside the payloads of network packets.

Aug 23, 2021 · Ngrep a network packet analyzer that is similar to the grep command, but ngrep grep the package on the network layer. This tool grep the traffic going to coming on the network interface.ngrep allow us to specify an extended regular or hexadecimal expression to match against data payloads of packets.ngrep can work on protocols like IPv4/6, TCP ...

ngrep is like GNU grep applied to the network layer. It's a PCAP-based tool that allows you to specify an extended regular or hexadecimal expression to match against data payloads of packets.

Dec 17, 2024 · ngrep, short for Network Grep, is a command-line network packet analyzer and capturing tool with powerful filtering capabilities using regular expressions. It’s particularly valuable for network administrators and security professionals who want to monitor, debug, or analyze network traffic in real-time.

Aug 3, 2018 · Ngrep is a powerful network packet analyzer. It is a grep-like tool applied to the network layer, which matches traffic passing over a network interface. Skip to content

Jan 13, 2016 · ngrep is a UNIX tool that lets you search through network traffic. This comes in super handy when debugging services that work across servers. Find out what is being sent and received on the network layer.

ngrep strives to provide most of GNU grep's common features, applying them to the network layer. ngrep is a pcap-aware tool that will allow you to specify extended regular expressions to match against data payloads of packets.

ngrep is like GNU grep applied to the network layer. It's a PCAP-based tool that allows you to specify an extended regular or hexadecimal expression to match against data payloads of packets.

Basic packet sniffing is easy with ngrep. It supports BPF filter logic, which means to say constraining what ngrep sees and displays is as easy as saying something like ``ngrep host foo.bar.com and port 25''. Following are a few examples of common invocations of ngrep to do basic packet sniffing.