diff --git a/README.md b/README.md
index 217d192..11d96cd 100644
--- a/README.md
+++ b/README.md
@@ -139,7 +139,7 @@ established by [Joseph Smarr][schema-author].
 
 Attributes can be any key from `${userModel}.profile`.
 
-If optional `loginCallback(service, user)` exist, `loopback-component-cas` call it when login occure.
+If optional `loginCallback(req, service, user)` exist, `loopback-component-cas` call it when login occure.
 
 ### Specific case
 
diff --git a/index.js b/index.js
index 315709f..c76b0b1 100644
--- a/index.js
+++ b/index.js
@@ -15,9 +15,10 @@ module.exports = function (loopbackApplication, options) {
     options.userModel = "User"
   }
 
-  let loginCallback = options.loginCallback || function(service, user) {
+  let loginCallback = options.loginCallback || function(req, service, user) {
     let loginOk = {
       'loopback-component': 'cas',
+      'ip': req.ip,
       'service': service.name,
       'email': user.email
     }
diff --git a/package-lock.json b/package-lock.json
index 2382af0..fa74e6e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "loopback-component-cas",
-  "version": "0.4.0",
+  "version": "0.5.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index e4f18bb..11bd748 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "loopback-component-cas",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "description": "Loopback CAS Authentification",
   "main": "index.js",
   "scripts": {
diff --git a/protocol1.js b/protocol1.js
index cf6e201..cf4957c 100644
--- a/protocol1.js
+++ b/protocol1.js
@@ -50,7 +50,7 @@ module.exports = function (app, config, req, res, next, loginCallback) {
             }))
           }
           debug('CAS1 validate (email: %s, service: %s)', user.email, service.name)
-          loginCallback(service, user);
+          loginCallback(req, service, user);
 
           return res.send('yes\n')
         })
diff --git a/protocol23.js b/protocol23.js
index 13d4118..afe03dd 100644
--- a/protocol23.js
+++ b/protocol23.js
@@ -245,7 +245,7 @@ module.exports = function (app, config, req, res, next, loginCallback, isProtoco
             getAttributes(app, config, user, tgt).then(function(returnProfile){
               let casversion = isProtocol3?'3':'2'
               debug('CAS%d validate (email:%s, service: %s)', casversion, user.email, service.name)
-              loginCallback(service, user);
+              loginCallback(req, service, user);
 
               /* 'TARGET' in req.query ? -> SAML */
               if (req.query['TARGET']) {