Jason Lim said : >> Do you WANT C to be invisible from outside, for security or something? Yes you got the point. >> Is there a reason you want to go through B to get to C? That's the only path -- nicolas@bouthors.org -- http://nicolas.bouthors.org/ -- +33 6 2071 6234 Administateur Systèmes et Réseaux -- GHS -- 38, Rue du Texel