Network Mapping 1:1 in WAN interface. Is it possible?

[vfontanella]

Hi,
I'm trying to use opnsense in a VM as a filter for traffic shaper tests in different bandwidths.
I manage to make the bandwidth works and I can test with ping changing the bandwidth I can see it affect the ms. But I can't manage to allow access to any port through the filter. For instance I try to access the port 8888 on a computer, than the firewall block it. I try allow that port and I use easy rule to add automatically the pass rule to enable that traffic. But the traffic still blocked and doesn't matter what I do in the rules, it still blocked and appears on the logs. Maybe is a stupid thing, but I'm lost.

info:
                         __[other_computer] 192.168.1.2 port 8888 open
[192.168.1.0]    |
[InternalNet]--------[my_computer]
                        |    [opnsense_vm] with a different network mapped 1:1  (172.16.30.0/24 -> 192.168.1.0/24)
                        |__[other_computer] with browser pointing to port 172.16.30.2:8888
Hope you can help me.
I'm migrating from pfSense and a few things are a bit different.
Thanks a lot.

Vicente.