Hi Sander,
Thanks for your attention and your guides
About paragraph 1 I will follow your instructions.
And about paragraph 2 I must say using any type of tunnel (really any type) in IRAN is illegal and have injunction for 6 month to 1 year imprisonment.
There are many problems about implementing IPv6 in IRAN that I do want to write about them here.
Obviously I do not have any hope of launching IPv6 in IRAN in next 12 months.