In reply to IainRUK:
I wild-camped in that area and saw a large family group of boars ambling and foraging through the trees near dusk. My wife and I quietly retreated inside our old VW van and observed them as if from a hide. They were relaxed in their behavior, hardly put off by our presence, kept 10m distance and passed by. The male was huge and confidently going about his business of rooting around. We kept quiet because we wanted to be able to observe them without scaring them off, but I had the feeling that they were wary of people, and would've scattered if we'd made a noise or confronted them. Good advice from Ring Ouzle though.
As for the legally allowed, I think it is much less of an issue these days. Do it, and depart early. The older folk there are just surprised if you don't follow the rules.