isc-dhcp-server

isc-dhcp-server 
---

NodeJS pagckage for managing isc-dhcp-server.

NOTE: For now, only basic options can be configured. Please feel free to add more by sendign PR :)

Installation
---

npm i --save isc-dhcp-server

Simple Usage
---

``js
var dhcp = require('isc-dhcp-server');

var s = dhcp.createServer({
interface: 'eth0',
range: [
"192.168.3.10", "192.168.3.99"
],
static: [
{
hostname: 'host1',
mac_address: 'xx:xx:xx:xx:xx:xx',
ip_address: '192.168.3.2'
}
],
network: '192.168.3.0',
netmask: '255.255.255.0',
router: '192.168.3.1', // can be string or array
dns: ["8.8.8.8", "8.8.4.4"], // can be string or array
broadcast: '192.168.3.255',
on_commit:
//set your script here
set ClientIP = binary-to-ascii(10, 8, ".", leased-address);
execute("/usr/bin/curl", concat("http://localhost/check-ip?ip=", ClientIP));

});

s.start().then(() => {
console.log('server started')
}).catch(e => {
console.log('Error: ', e)
})
`

Multiple Interfaces and Subnets
---

`js
var dhcp = require('isc-dhcp-server');

var subnet1 = {
interface: 'eth0',
range: [
"192.168.3.10", "192.168.3.99"
],
static: [
{
hostname: 'host1',
mac_address: 'xx:xx:xx:xx:xx:xx',
ip_address: '192.168.3.2'
}
],
network: '192.168.3.0',
netmask: '255.255.255.0',
router: '192.168.3.1', // can be string or array
dns: ["8.8.8.8", "8.8.4.4"], // can be string or array
broadcast: '192.168.3.255'
}

var subnet2 = {
interface: 'eth1',
range: [
"192.168.4.10", "192.168.4.99"
],
static: [
{
hostname: 'host1',
mac_address: 'xx:xx:xx:xx:xx:xx',
ip_address: '192.168.4.2'
}
],
network: '192.168.4.0',
netmask: '255.255.255.0',
router: '192.168.4.1', // can be string or array
dns: ["8.8.8.8", "8.8.4.4"], // can be string or array
broadcast: '192.168.4.255'
}

var s = dhcp.createServer([subnet1, subnet2]);

s.start().then(() => {
console.log('server started')
}).catch(e => {
console.log('Error: ', e)
})
`


API
---

dhcp.createServer(options | [options])
- options - can be an object or array of option
- range (array) - start/end of ip lease loop
- static (array) - staic mappings of mac/ip reservations
- netmask (string) - network mask
- router(array) - ip/s of gateway(s)
- dns(array) - dns servers
- broadcast(string) - broadcast address


server.validate()
- (returns a promise) validate configuration (also called before server.start() and server.restart())

server.start()
- (returns a promise) start the server

server.stop()
- (returns a promise) stop the server

server.restart()
- (returns a promise) restart the server


The server is started/stopped using systemctl start/stop isc-dhcp-server` command.

License
---

MIT