m0n0wall Forum - Monowall in private net Environment

Hello Forum,

I would like tuo use a monowall in a complete private net environment behind our company firewall and company router.
But I an not reach the Internet from my OPT1 and OPT2 Interfaces

WAN should have IP-Net 192.168.10.0/24 and standard gateway 192.168.10.1
OPT1 is 192.168.11.0/24
and
OPT2 is 192.168.12.0/24

I have disabled the private network protection on the WAN side. I have no NAT assigned to any interface.

In the first step I would be would be happy if the monowall act like a simple router.

Currently all rules are (on each interface): any protocol form any source to any destination allowed

Later I will refine the rules for our purpose.

Static Routes for each opt-if and the wan-if are set on our company firewall and the company router.

Also the static routes on the monowall are set.

   ------ ------ --------
   : : : :----- : :------ OPT1
I---: A :--------: B :----- : M :------ LAN
   : : : :---------: :------ OPT2
   ----- ------ -------

I = Internet, A = Company FW, B =Company Router, M= Monowall

I tried the same config with LAN-IF instead WAN-IF. But unfortunately i can not set a standard gateway on the LAN-IF

Are there some special reasons on the WAN-IF that denies such a configuration? I hope you guys will flood me with ideas.

Thanks in advance