Hi!
I'm running 1.2b10-ovpn5 [1] (same issue with 1.2b10) on my system. The
OpenVPN daemon works fine on the DMZ interface. The clients (WinXP SP2)
connect via tap device to the m0n0wall. I can access my LAN, but I'm
unable to access any  WAN adresses although the firewall accepts the
packets.

I have search a bit on the list and found a few mails and howtos, but
nothing helps.

WAN (public IP - PPPoE)
LAN  (local IP  - 192.168.1.0/24)
DMZ  (local IP  - 192.168.2.0/24)
TAP0 (local IP  - 10.10.2.0/24)

OpenVPN config:
- enable "Redirect-gateway"
- enable "Local"

Firewall rules for the TAP0 device:
Proto	Source		Port	Destination	 Port	 Description
   *  	TAP0 net  	*  	*  		* 	 any

Firewall log:
Act 	Time 		If 	Source	 	Destination    Proto
accept	17:56:39.026555 TAP0 	10.10.2.2 	216.239.39.104 ICMP


Thanks a lot in advance!
  Christof


[1] http://www.protec-t.de/m0n0wall/downloads/