NameVirtualHost nat

[Lars H. Beuse]

Hi,
i want some apache NameVirtualHost behind a Paketfilter based on ipf, placed 
in two subnets. This router has two Cards one in the private net, one in the 
public. So far i just forward port 80 and 443 into my private net 
192.168.2.0, but every request ends up on apaches rootlevel, NameVirtualHost 
directive is useless. So, how to forward http(s):// requests through the 
Paketfilter matching the right VirtualHost? Maybe i've thought in a wrong 
direction, so far. Just some little hints should be enough.
Greetings
Lars H. Beuse