Hello Sdnog I found a blog says 6to4 is obsolete http://www.kfu.com/~nsayer/6to4/ Is it true? If yes then what are the alternatives? static tunnel is not scalable right ?! Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.sdnog.sd/pipermail/sdnog/attachments/20150930/8bfcd308/attachment.html>