Hi, I have 5 years experience in Linux and open source. I've setup hundreds of server with various type of services : mail (postfix, exim), apche, dns (bind), ftp, ssh, mysql, keepalived ... I'm also an expert in network and iptables.
About your project, it can be done by static route in linux.
I think I'm best suite for your project. Because I'm newcomer, I will lower my bid for you. Pls give me a chance to satify you. Tks