dhcpd.js

dhcpd.js is a Node.js implementation of a DHCP server. It provides a
simple and efficient way to handle DHCP events in your network.



Installation

You can install dhcpd.js using npm:

``bash
npm install dhcpd.js
`

$3

`javascript
const { Server } = require('dhcpd.js');

const s = new Server('192.168.1.1');

s.on("dhcp", (e) => {
console.log(e.packet.debug());
});

s.bind();
`

$3

`javascript
const { BOOTMessageType, Server } = require('dhcpd.js');

const s = new Server({
serverId: "192.168.1.1",
gateways: ["192.168.1.1"],
domainServer: ["192.168.1.1"]
});

s.on("listening", () => {
console.log("Server start", s.address);
});

const ips = {};

s.on("discover", (e) => {
const { packet } = e;
console.log(packet.log());

let ip = "0.0.0.0";
if (Object.keys(ips).includes(packet.chaddr)) {
ip = ips[packet.chaddr];
} else {
ip = 192.168.1.${Object.keys(ips).length + 2};
}
ips[packet.chaddr] = ip;

const offer = s.createOffer(packet);
offer.yiaddr = ip;

console.log(offer.log());
s.send(offer);
});

s.on("request", (e) => {
const { packet } = e;
console.log(packet.log());

const ack = s.createAck(packet);
ack.yiaddr = ips[packet.chaddr];

console.log(ack.log());
s.send(ack);
});

s.on("release", (e) => {
const { packet } = e;
console.log(packet.log());
delete ips[packet.chaddr];
});

s.bind();
``

RFC

For more information about DHCP, you can refer to the following RFCs:

- Dynamic Host Configuration Protocol
- DHCP Options and BOOTP Vendor Extensions

Related Projects

- dhcpjs
- node-dhcpd
- forge