traceroute to firewall and bridge

[adrian kok <adriankok2000_(_at_)_yahoo_(_dot_)_com_(_dot_)_hk>]

Hi all

I used openbsd as firewall and bridge

Outside I used tracert in window host.
I can reach ip of the host behind the firewall

but

I can't reach ip of the host using traceroute of the
unix host.

It stopped in the bridge's ip address

What is wrong of my setting

Thank you