Delete cached reference after stopping interface

lib/NetworkInterface.js

@@ -428,6 +428,15 @@ NetworkInterface.prototype.stop = function () {
   this._sockets = [];
   this._buffers = [];
 
+  var intf = this;
+
+  // Remove any entries from active interfaces.
+  Object.keys(activeInterfaces).forEach(function (name) {
+    if (activeInterfaces[name] === intf) {
+      delete activeInterfaces[name];
+    }
+  });
+
   debug('Done.');
 };
 

src/NetworkInterface.js

@@ -421,6 +421,15 @@ NetworkInterface.prototype.stop = function() {
   this._sockets = [];
   this._buffers = [];
 
+  const intf = this;
+
+  // Remove any entries from active interfaces.
+  Object.keys(activeInterfaces).forEach((name) => {
+    if (activeInterfaces[name] === intf) {
+      delete activeInterfaces[name];
+    }
+  });
+
   debug('Done.');
 };
 

test/tests/NetworkInterface.test.js

@@ -604,6 +604,15 @@ describe('NetworkInterface', function() {
       intf._sockets = [socket];
       intf.stop();
     });
+
+    it.only('should remove interface from active interfaces cache', function() {
+      const intf = new NetworkInterface.get();
+
+      intf.stop();
+      const newIntf = new NetworkInterface.get();
+
+      expect(newIntf).to.not.equal(intf)
+    });
   });
 
 });