Yahoo messenger voice and IPNAT problem , DARREN cans help me

[khodadad Nejadkoorki]

Dear all Hi   Excuse me for resending my request , I use IPNAT on Freebsd 4.8 with IP Filter v3.4.31 for natting invalid addresses of my test network to a valid address , every thing is ok except Yahoo messenger's voice service .   My network topology is as below :   Invalid Network (172.16.8.0/21)    <----------------->   Nat & Filtering machine  <--------------->   Internet   My natting rules are as below :   map fxp1 172.16.8.0/21 -> 0/32 proxy port ftp ftp/tcp map fxp1 172.16.8.0/21 -> 0/32 proxy port 7070 raudio/tcp map fxp1 172.16.8.0/21 -> 0/32 portmap tcp/udp 2000:65000 map fxp1 172.16.8.0/21 -> 0/32   And also my active filtering rule set is as below :   block in quick proto tcp from any to 0.0.0.0/0.0.0.255 port = 80 block in quick proto tcp from 0.0.0.0/0.0.0.255 port = 80 to any block in quick proto tcp from any port = 80 to 0.0.0.0/0.0.0.255 block in quick proto tcp from 0.0.0.0/0.0.0.255 to any port = 80 # block in quick proto tcp from any to 0.0.0.0/0.0.0.255 port = 25 block in quick proto tcp from 0.0.0.0/0.0.0.255 port = 25 to any block in quick proto tcp from any port = 25 to 0.0.0.0/0.0.0.255 block in quick proto tcp from 0.0.0.0/0.0.0.255 to any port = 25 # pass  in quick on fxp0 from 172.16.8.0/21 to any block in quick on fxp0 from any to any block in quick on fxp1 from 172.16.8.0/21 to any # pass in all pass out all   Please if it is possible, let me know how do I can solve this problem ( enabling yahoo messenger voice service for my network ) . Special thanx for you help .   Best hopes Kh. Nejadkoorki