VaporSec works with Zyxel Zywalls

I move my PowerBook around a lot and I want to be able to connect to remote networks behind firewalls. I'm pleased to say that it works pretty well, wether I'm behind NAT or not, and I have just one setting on both "sides" (just one site so far) to make it happen. I've had to restart the ZyWall a couple of times though, when there was no traffic going trough, even if the tunnel was up. I tried the "competion", "IPSecuritas", but "no go" this far (what about their claim of being "more secure" than VaporSec?). VPN Tracker works too and the only thing it has, that would be nice to have in VaporSec, is the tunnel up or down indicator (that actually works). It seems Panther will have support for L2TP over IPSec. I hope that woun't break anything as WXP SP1 update of built-in WXP IPSec did with Zyxel ZyWalls (Zyxel says so, I try to stay away from crap ó MS and the like ó if I can help it)? I guess a standalone, selfcontained VPN client would make that problem "go away". I also guess one will have to look into what L2TP is... Best regards