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nat-api
Advanced tools
Readme
Fast port mapping with UPnP and NAT-PMP in NodeJS.
Required: NodeJS >= 10
npm install nat-api
const NatAPI = require('nat-api')
const client = new NatAPI()
// Map public port 1000 to private port 1000 with UDP and TCP
client.map(1000, function (err) {
if (err) return console.log('Error', err)
console.log('Port mapped!')
})
// Map public port 2000 to private port 3000 with UDP and TCP
client.map(2000, 3000, function (err) {
if (err) return console.log('Error', err)
console.log('Port mapped!')
})
// Map public port 4000 to private port 5000 with only UDP
client.map({ publicPort: 4000, privatePort: 5000, ttl: 1800, protocol: 'UDP' }, function (err) {
if (err) return console.log('Error', err)
console.log('Port mapped!')
})
// Unmap port public and private port 1000 with UDP and TCP
client.unmap(1000, function (err) {
if (err) return console.log('Error', err)
console.log('Port unmapped!')
})
// Get external IP
client.externalIp(function(err, ip) {
if (err) return console.log('Error', err)
console.log('External IP:', ip)
})
// Destroy object
client.destroy()
client = new NatAPI([opts])
Create a new nat-api
instance.
If opts
is specified, then the default options (shown below) will be overridden.
{
ttl: 1200, // Time to live of each port mapping in seconds (default: 1200)
autoUpdate: true, // Refresh all the port mapping to keep them from expiring (default: true)
gateway: '192.168.1.1', // Default gateway (default: null)
enablePMP: false // Enable PMP (default: false)
}
If gateway
is not set, then nat-api
will get the default gateway based on the current network interface.
client.map(port, [callback])
port
: Public and private portscallback
This method will use port
por mapping the public port to the same private port.
It uses the default TTL and creates a map for UDP and TCP.
client.map(publicPort, privatePort, [callback])
publicPort
: Public portprivatePort
: Private portcallback
This is another quick way of mapping publciPort
to privatePort
with any protocol (UDP and TCP).
client.map(opts, [callback])
opts
:publicPort
: Public portprivatePort
: Private portprotocol
: Port protocol (UDP
, TCP
or null
for both)ttl
: Overwrite the default TTL in seconds.description
: Description of the port mappingcallback
client.unmap(port, [callback])
Unmap any port that has the public port or private port equal to port
.
client.unmap(publicPort, privatePort, [callback])
Unmap any port that has the public port or private port equal to publicPort
and privatePort
, respectively.
client.unmap(opts, [callback])
Unmap any port that contains the parameters provided in opts
.
client.externalIp([callback])
callback(err, ip)
Get the external IP address.
client.destroy([callback])
Destroy the client. Unmaps all the ports open with nat-api
and cleans up large data structure resources.
MIT. Copyright (c) Alex
FAQs
Port mapping with UPnP and NAT-PMP
The npm package nat-api receives a total of 378 weekly downloads. As such, nat-api popularity was classified as not popular.
We found that nat-api demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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