anchor.diff:           end,
       implicit_inet6(Config, S1, Active, Loopback),
       ok = gen_udp:close(S1),
  +
       %%
       Localaddr = ok(get_localaddr()),
       ?P("try 2 on local addr (~p)", [Localaddr]),
  
positive.code:     end.
  
  implicit_inet6(Config, Host, Addr) ->
      Active = {active,false},
      Loopback = {0,0,0,0,0,0,0,1},
      ?P("try 1 with explicit inet6 on loopback"),
      S1 = case ?OPEN(Config, 0, [inet6, Active, {ip, Loopback}]) of
  
negative.code:          end,
      implicit_inet6(Config, S2, Active, Localaddr),
      ok = gen_udp:close(S2),
  
      %%
      ?P("try 3 on addr ~p (~p)", [Addr, Host]),
      S3 = case ?OPEN(Config, 0, [{ifaddr, Addr}, Active]) of
  