Zyxel Zywall 2 fireWall Q

Hi guys,

I have a question- I'm interested in closing all the ports except 80, 20,21,

443 - that's for outgoing rule, LAN 2 WAN. That's really all the port's that I need.

Now, which port's do You recommend that I should open on WAN 2 WAN and WAN 2 LAN rules... or to refrage this: which port's should be opened for normal but secure internet connection?

For now- I have open: WAN 2 LAN rule NetBios, DNS, HTTPS

WAN 2 WAN IKE, DNS

Also, I would like some help with FTP, dynamic port's:

I have to open FTP "server" (I don't like it, but hell...) I would like to enable DYNAMIC ports (UPNP ports - correct me if I'm wrong) I think? Becouse-> I can connect on 21 but data port is connect through some port's from 1024 to 14xx (which, in this firewall conf ain't gonna happen). Or is it best to use something like Windows commander- FTP program's that uses 20,21 ports?

Any comment's?

Thank's in advance! G.