diff --git a/index.js b/index.js
index 7146ed9..a1ef681 100644
--- a/index.js
+++ b/index.js
@@ -33,13 +33,20 @@ function createCert() {
     cert.serialNumber = '01';
     cert.validity.notBefore = new Date();
     cert.validity.notAfter = new Date();
-    cert.validity.notAfter.setFullYear(cert.validity.notBefore.getFullYear() + 20);
+    cert.validity.notAfter.setFullYear(cert.validity.notBefore.getFullYear() + 20);    
+
+    const altNames = ["127.0.0.1"];
+
+    for(let i=1;i<255;i++) {
+        altNames.push({ type: 7, ip: `192.168.0.${i}`});
+    }
 
     // use your own attributes here, or supply a csr (check the docs)
     var attrs = [{
     name: 'commonName',
     value: 'dev.web-atoms.in'
-    }, {
+    },
+    {
     name: 'countryName',
     value: 'IN'
     }, {
@@ -58,6 +65,10 @@ function createCert() {
 
     // here we set subject and issuer as the same one
     cert.setSubject(attrs);
+    cert.setExtensions([{
+        name: "subjectAltName",
+        altnames
+    }])
     cert.setIssuer(attrs);
 
     // the actual certificate signing