Smoothwall Static routes

I eventually solved this problem.
Edit /etc/rc.d/rc.firewall.up

After the section on “# Allow packets that we know about through …”

Add:
# Allow packets from green to green
/sbin/iptables -A FORWARD -i $GREEN_DEV -o $GREEN_DEV -j ACCEPT

Create:
/var/smoothwall/ethernet/staticroutes

with this in

route add -net 192.168.122.0 netmask 255.255.254.0 gw 192.168.103.2 dev eth0

make sure the file is 755

add this line to /etc/rc.d/rc.netaddress.up

/var/smoothwall/ethernet/staticroutes

Then reboot the smoothwall