Camp sites during Leh trip

Anyone can help me knowing which are the camp sites while the Leh- Ladakh trip.
And can we use our own tents there.

I am planning to do the trip in 1st week of june, most probably 1st of june.
There are lot of campsites on the way from Manali to Laddakh, at Keylong, Jispa, Darcha, Sarchu and Pang. I have seen lot of people pitching their own tents around many of them. However, since I haven't done any such activity before myself, not really sure if you'd need to take their permission before doing so.


I have seen signboards of Campsite in/around Rumtse village on Manali-Leh Highway.
I guess these sites belong to villagers and they provide these place on chargeable basis.