@@ -51,9 +51,23 @@ Docker daemon. You can add users with:

 To verify that everything has worked as expected:

-    $ sudo docker run --rm -i -t ubuntu /bin/bash

+    $ sudo docker run --rm -i -t opensuse /bin/bash

+

+This should download and import the `opensuse` image, and then start `bash` in

+a container. To exit the container type `exit`.

+

+If you want your containers to be able to access the external network you must

+enable the `net.ipv4.ip_forward` rule.

+This can be done using YaST by browsing to the

+`Network Devices -> Network Settings -> Routing` menu and ensuring that the

+`Enable IPv4 Forwarding` box is checked.

+

+This option cannot be changed when networking is handled by the Network Manager.

+In such cases the `/etc/sysconfig/SuSEfirewall2` file needs to be edited by

+hand to ensure the `FW_ROUTE` flag is set to `yes` like so:

+

+    FW_ROUTE="yes"

-This should download and import the `ubuntu` image, and then start `bash` in a container. To exit the container type `exit`.

 **Done!**