troubleshooting Question

Port forwarding - one port to many based on url

Avatar of grgur
grgur asked on
RoutersNetwork OperationsNetwork Architecture
5 Comments1 Solution1570 ViewsLast Modified:
Situation:
Our office is connected to the Internet with high speed connection. Our ISP opened 5 ports for us. Their CISCO router forwards SMTP, POP3 and HTTP ports to Debian etch web/mail server in our local network. RDP and Kerio Winroute firewall VPN (port 4090) ports are forwarded to another WIn XP computer in our local network.

Problem:
We would like to use more ports. Extra block of 5 ports that our ISP forwards is too expensive. Is it possible to establish some sort of port forwarding/translation so that requests to specified port are forwarded to another port based on domain name or some other query?

Example:
ssh.ourcompany.com:4090  forwards request to   192.168.1.1:22
imap.ourcompany.com:4090  forwards request to   192.168.1.10:143

I thank you for your ingenious answers in advance :). Solutions in windows or linux are fine.
ASKER CERTIFIED SOLUTION
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