route-to questions

Hi,

I want to upgrade openbsd 4.6 to 5.3, but have problems with some rules. I
need to change the following rules for the new version of pf and I can not
find information about that. You can help me with that problem?


pass in quick on $ext_if route-to lo0 inet proto tcp from any to 127.0.0.1
port 8025
pass in quick on $ext_if inet proto tcp from any route-to 127.0.0.1(new
version, work, but the port option doesn't work)


no rdr on $ext_if inet proto tcp from <no-spamd> to IP-Address port 25
pass in quick on $ext_if inet proto tcp from <no-spamd> to IP-Address port
25(new version, work, but I don't know if is correct)

Thanks.