我在 Azure 容器服务中使用 Windows 容器。当我开始使用它时，我在容器中的应用程序能够访问 Internet。但是最近发现新建的容器不能上网，即使是最简单的iis容器也是按照https://docs.microsoft.com/en-us/azure/container-service/kubernetes/container上的说明创建的-服务-kubernetes-windows-演练
我在容器中得到的路由表：
ifIndex DestinationPrefix NextHop RouteMetric PolicyStore
------- ----------------- ------- ----------- -----------
37 255.255.255.255/32 0.0.0.0 256 ActiveStore
33 255.255.255.255/32 0.0.0.0 256 ActiveStore
32 255.255.255.255/32 0.0.0.0 256 ActiveStore
37 224.0.0.0/4 0.0.0.0 256 ActiveStore
33 224.0.0.0/4 0.0.0.0 256 ActiveStore
32 224.0.0.0/4 0.0.0.0 256 ActiveStore
37 192.168.15.255/32 0.0.0.0 256 ActiveStore
37 192.168.15.249/32 0.0.0.0 256 ActiveStore
37 192.168.0.0/20 0.0.0.0 256 ActiveStore
32 127.255.255.255/32 0.0.0.0 256 ActiveStore
32 127.0.0.1/32 0.0.0.0 256 ActiveStore
32 127.0.0.0/8 0.0.0.0 256 ActiveStore
33 10.244.2.255/32 0.0.0.0 256 ActiveStore
33 10.244.2.59/32 0.0.0.0 256 ActiveStore
33 10.244.2.0/24 0.0.0.0 256 ActiveStore
37 0.0.0.0/0 192.168.0.1 256 ActiveStore
33 0.0.0.0/0 10.244.2.1 256 ActiveStore
37 ff00::/8 :: 256 ActiveStore
33 ff00::/8 :: 256 ActiveStore
32 ff00::/8 :: 256 ActiveStore
37 fe80::14f3:38ac:8df2:9869/128 :: 256 ActiveStore
33 fe80::1429:dec4:7919:bb65/128 :: 256 ActiveStore
37 fe80::/64 :: 256 ActiveStore
33 fe80::/64 :: 256 ActiveStore
32 ::1/128 :: 256 ActiveStore
Kubernetes 版本：
Client Version: version.Info{Major:"1", Minor:"7", GitVersion:"v1.7.2", GitCommit:"922a86cfcd65915a9b2f69f3f193b8907d741d9c", GitTreeState:"clean", BuildDate:"2017-07-21T08:23:22Z", GoVersion:"go1.8.3", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"6", GitVersion:"v1.6.6", GitCommit:"7fa1c1756d8bc963f1a389f4a6937dc71f08ada2", GitTreeState:"clean", BuildDate:"2017-06-16T18:21:54Z", GoVersion:"go1.7.6", Compiler:"gc", Platform:"linux/amd64"}
我应该如何从容器中获取 Internet 访问权限？
谢谢