IP4P

A tool for encoding and decoding IP4P address format (introduced by heiher/NATMap）

Usage

Installation

npm install --save-dev ip4p

import ip4p from 'ip4p';

Encode

ip4p.encode('1.1.1.1', 853); // 2001::0355:0101:0101

Decode

ip4p.decode('2001::0355:0101:0101'); // {"address": "1.1.1.1", "port": 853}

Resolve from a domain

This package do not provide a DNS lookup function, here is an example based on Nodejs built-in dns module.

import dnsPromises from 'node:dns/promises';

const record = await dnsPromises.lookup('ip4p.example.com', {family: 6});
ip4p.resolve(record.address);