Tehran and radar!!!? Hmmm, well, not where I'm sitting at (to the south of it, that is). We have to provide ten minutes longitudinal separation for same level and, occasionally, to descend traffic within our three minutes of the airspace, 'cause they can't do in next 40 minutes, based on "controller's judgment" (as I was told the other day).
Anyway, you don't have to identify traffic, but, in that case, you cannot provide radar service. You can still use it for radar monitoring and, if the route structure is done properly, it may be enough.