- allow peers to connect in both directions


git-svn-id: https://gnunet.org/svn/gnunet@31839 140774ce-b5e7-0310-ab8b-a85725594a96
- testbed underlay testcase


git-svn-id: https://gnunet.org/svn/gnunet@31840 140774ce-b5e7-0310-ab8b-a85725594a96