These forums are more about consumer equipment but I have over the years worked on Cisco and other gear.
For technical work on those we would take the training, read the books and if need be call it in.
http://www.juniper.net/us/en/ has the support and training for your needs.
I have a internal lan network setup connected to cyberoam firewall cr300i . I want to configure another firewall juniper ns5gt so that i can access it from outside using external public ip . The external ip given is 18.104.22.168 ( untrust zone )and internal lan ip that is mapped ip is 172.16.40.200 (trust zone). kindly help with configuration