In the case of CI test nodes natively supporting and using ipv6,
we don't need to actually setup a fake IPv6 network for ports
to bind to on the local system. So before doin gso, lets check
to see if we can ping the address first. If not, then set it up.
Change-Id: Ib68c706c1f9ef0ad0cf27e7a6acffd2c50ff37ea