default-gateway

> Get the default network gateway, cross-platform.

Obtains the machine's default gateway through `exec` calls to OS routing interfaces. On Linux and Android, the `ip` command must be available (usually provided by the `iproute2` package). On IBM i, the `db2util` command must be available (provided by the `db2util` package).

# Installation

$ npm install default-gateway

# Example

const defaultGateway = require('default-gateway');
defaultGateway.v4().then(result => {
// result = {gateway: '1.2.3.4', interface: 'en1'}
});
defaultGateway.v6().then(result => {
// result = {gateway: '2001:db8::1', interface: 'en2'}
});
const result = defaultGateway.v4.sync();
// result = {gateway: '1.2.3.4', interface: 'en1'}
const result = defaultGateway.v6.sync();
// result = {gateway: '2001:db8::1', interface: 'en2'}

# API

## defaultGateway.v4()

## defaultGateway.v6()

## defaultGateway.v4.sync()

## defaultGateway.v6.sync()

Returns: `result` Object

- `gateway`: The IP address of the default gateway.
- `interface`: The name of the interface. On Windows, this is the network adapter name.

The `.v{4,6}()` methods return a Promise while the `.v{4,6}.sync()` variants will return the result synchronously.

The `gateway` property will always be defined on success, while `interface` can be `null` if it cannot be determined. All methods reject/throw on unexpected conditions.

# License

© silverwind, distributed under BSD licence