I'm desperate for some assistance in trying to get OS X iChat to work using Bonjour across a TUN OpenVPN connection. I cannot use a bridge connection due to other requirements on the VPN. While I realize that any hacks that can make this work may be on the OS X side, and not the OpenVPN side, but I'm hoping someone here has found a solution. Understanding that Bonjour does not multi-cast over point to point (or any non-local) connection, I suppose the only solution is to fool OS X into seeing the TUN connection as local. Anyway, if anyone has ANY suggestions at all, I'd appreciate hearing from you.