Sir, first i would like to thanking you for reply.
first need to aware i m using pfsense 2.0 services squid, squid guard, light squid.
then i need to access my windows ms sql server rdp 3389 from out side lan internet. like my home.
now i go to firewall option in port forwarding rule add (+) interface wan, source any port any, destination wan address port 3389, Redirect target IP 172.16.4.145, Redirect target port 3389, NAT reflection system default, Filter rule association add associated filter rule, then SAVE.
then...............! i will go to firewall rules go to wan interface i see its automatically created a rule TCP * * 172.16.4.145 3389 (MS RDP) * none NAT
now i telnet my pfsense from my home telnet 126.96.36.199 3389 it not working.
but when i ping this its replying and when telnet 188.8.131.52 22 its working.
sir now can please guide me what i do.... to its work.