I want to setup routing between those two LAN-s.
- route added to m0n0 1 192.168.30.0/24 gw 192.168.19.2
- advanced NAT checked on m0n0 2
- PC1 can ping PC2
- PC2 can't ping PC1
- all traffic allowed on all interfaces (10000% sure)
----> Proto Source Port Destination Port Description  
               *  *  *  *  *  opt1 -> any   
m0n0wall block packets coming from PC2 (saw it on m0n01 firewall log)
---->   X 12:20:20.139769 OPT1 192.168.30.200 192.168.0.248 ICMP

    |
   WAN
+--------+19.1      19.2+-------+
| m0n0 1 |OPT--------WAN| m0n02	|
+--------+		+-------+
   LAN 0.254	   	   LAN 30.254
    |			    |
   PC1			   PC2
192.168.0.200	      192.168.30.200

I lost 2 days trying to solve this!