Enable IPv6 forwarding on the left DUT's tunnel interface, matching
the IPv4 tunnel config. Without it, IPv6 packets are not forwarded
through the tunnel, causing all tunnel_basic IPv6 tests to fail.
Regression introduced when fixing issue #515 in 717c1c0.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Let's drop the leading IETF or Infix prefixes from tests. Initially the
idea was to mimnic the YANG models, but it's difficult to navigate and
does not provide any real benefit to developers or end-users.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>