OpenVPN not using firewall rules

[wiz561]

Hi!  I have an OpenVPN 'road-warrior' type remote access setup where I can connect just fine from my laptop when I'm remote.  Everything works good, but unfortunately, things are a bit too open.  It seems like no matter what rules I put in on the OpenVPN firewall interface, it doesn't listen to them.  Just for testing, I put in a block for destination 10.0.0.0/8 and deny all traffic (and log it), but nothing gets logged and all the traffic just passes through.

When you configure OpenVPN to use, say, 10.0.121.0/24, does it listen to the firewall rules for the interface that's setup for 10.0.121.0/24?

Thanks!