network-packets

Parse information from network packets at layers 2 (Ethernet), 3 (IPv4/IPv6, ARP), and 4 (TCP, UDP, ICMP, ICMP6).

Given a network packet either starting at the Ethernet header or starting at the IP header, parse the packet and return a structure.

Installation

npm install network-packets
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API

Full API documentation is available.

Example:

import {LINKTYPE_ETHERNET, LINKTYPE_RAW, readPacket} from 'network-packets';
const eth = new Uint8Array([/* Ethernet Bytes... */]);
const ethPacket = readPacket(eth, LINKTYPE_ETHERNET);
const ipv6 = new Uint8Array([/* IPv6 Bytes... */]);
const ipv6Packet = readPacket(ipv6, LINKTYPE_RAW);
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