Does Dell perceive when IPv4 6to4 time, the one mac can have multiple IPv4 connectable so set the program blocking . PC-doctor is the only hardware caring apply being used since 1999 never stopped because it is a place where global can record your mac company and , 6to4 and IPv6 that for any user uniquely, would finally become every who work on the Operation System , UNIX or windows.
Sincerely
PC- doctor Toolbox and SC12 user .