diff --git a/lib/docker.js b/lib/docker.js
index 69a12ad..86960b8 100644
--- a/lib/docker.js
+++ b/lib/docker.js
@@ -131,8 +131,8 @@ DockerModule.prototype.register = function (src, target, opts) {
 
 DockerModule.prototype.registerContainer = function (src, containerId, opts) {
   var _this = this;
-  containerPort(this.dolphin, containerId).then(function (targetPort) {
-    _this.redbird.register(src, targetPort, opts);
+  containerPort(this.dolphin, containerId, opts).then(function (targetPort) {
+    _this.redbird.register(src, targetPort + (opts.container && opts.container.path ? '/' + opts.container.path : ''), opts);
     _this.ports[containerId] = targetPort;
   });
 };
@@ -142,18 +142,26 @@ function isMatchingImageName(targetName, imageName) {
     return regex.test(imageName);
 }
 
-function containerPort(dolphin, containerId) {
+function containerPort(dolphin, containerId, opts) {
   return dolphin.containers.inspect(containerId).then(function (container) {
     var port = Object.keys(container.NetworkSettings.Ports)[0].split('/')[0];
+    if (opts.container && opts.container.port && container.NetworkSettings.Ports.hasOwnProperty([opts.container.port + '/tcp'])) {
+      port = opts.container.port;
+    }
 
-    var netNames = Object.keys(container.NetworkSettings.Networks);
+    var ip, netNames = Object.keys(container.NetworkSettings.Networks);
     if (netNames.length === 1) {
-      var ip = container.NetworkSettings.Networks[netNames[0]].IPAddress;
+      ip = container.NetworkSettings.Networks[netNames[0]].IPAddress;
       if (port && ip) {
         return 'http://' + ip + ':' + port;
       }
     } else {
-      //TODO: Implements opts for manually choosing the network/ip/port...
+      if (opts.container && opts.container.network && container.NetworkSettings.Networks[opts.container.network]) {
+        ip = container.NetworkSettings.Networks[opts.container.network].IPAddress;
+        if (port && ip) {
+          return 'http://' + ip + ':' + port;
+        }
+      }
     }
     throw Error('No valid address or port ' + container.IPAddress + ':' + port);
   });