1 WAN interface 2 OPT interfaces pulling DHCP from external ISP

[Palmore]

I'm trying to set up pfSense as a transparent bridge in between my 2 networks and my cable modem.

Basically, I have

1 WAN adapter plugged into my cable modem
1 OPT1 adapter going to my "private" network (bridged with WAN)
1 OPT2 adapter going to my DMZ network (bridged with WAN)

it's been VERY long since I've worked on getting my OPT1 adapter to pull a DHCP address from my ISP… now that I have my DMZ network, the device behind the bridge on OPT2 is not getting an IP from DHCP.

I see.

udp  172.29.253.94:67 -> 255.255.255.255:68  SINGLE:NO_TRAFFIC

In my state table, so I know the DHCP reply is getting blocked by the firewall...

I've got * * * * rules for my DMZ network, basically allowing anything WAN -> DMZ

I've also tried allowing 172.29.253.94:67 to the broadcast network 255.255.255.255, etc and so on...

What am I doing wrong? How can I get the device plugged in behind OPT2 to get it's IP from my ISP's external DHCP server?