Problem saving the IP address for later use.

I found a solution:
Use a SetInterval and wait for the IP address to show up.

      wifi.getIP(function(l,ip){console.log("IP= ",ip,"\n\r"+l);xIP=ip;});
id=setInterval(function () {
  console.log("Hello World");
  if(xIP!==undefined){
   console.log("xIP= ",xIP);
  clearInterval(id);
      console.log("Wi-Fi Connected ");
// Now you can do something, 
      var client = require("net").connect({host: IP, port: 1234,protocolVersion: 17}, function() {
  console.log('client connected');
  client.write("Jello"+xIP);
  client.on('data', function(data) {
    console.log(">"+JSON.stringify(data)+"xjello");
  client.write("Reply"+xIP);
  });
  client.on('end', function() {
    console.log('client disconnected');
  });

//client.end("UTLEY");
});
  }
}, 1000);

And the output:

>echo(0);
Start
Start connection process
Try again
=undefined
Reset the ESP8266
Connecting to WiFi
OKxx1
OKxx2
IP=  192.168.1.3
null
Hello World
xIP=  192.168.1.3
Wi-Fi Connected
Client
client connected
Send 0 Jello192.168.1.3
> 

And the Billy Bob device

>echo(0);
Start
Start connection process
Try again
=undefined
Reset the ESP8266
Connecting to WiFi
OKxx1
OKxx2
Wi-Fi Connected
Client
client connected
IP=  192.168.1.4
null
"192.168.1.4"
Send 0 XX 192.168.1.4Jello
>"Reply192.168.1.3"xjello
>
Disconnected

I expect to post the UDP in a few days after some code cleanup.
It modifies the ESP8266WiFi_0v25 module to allow UDP.
var wifi = require("UDP").connect(Serial, function(err) {
//var wifi = require("ESP8266WiFi_0v25").connect(Serial, function(err) {