Need help for port forwarding

Hi

You can use ssh to connect as well.

(i use winssh and putty or tunnelier)

In general, a site-to-site VPN consisting of a pair of Cisco VPN concentrators or ASA 5505 boxes would cost a couple grand, but it would run without a hiccup for probably ten years if left alone.

http://www.cisco.com/en/US/netsol/ns340/ns394/ns171/ns142/

A lower cost alternative, would be something like SonicWall. Juniper or CheckPoint would be about the same cost.

If you have no budget, then OpenVPN or using DDWRT could be used to to create a link using old PC or Linksys router.

What you are asking for isn't port forwarding. That would be opening a normally closed port in your own firewall for an application to use.

What you can do is tunnel as markp24 suggests, or you can change the port the application is meant to use, if the app allows. If the you can't change the used port in the app, you can use port redirection on a router or operating system that supports this. Example: http://www.cyberciti.biz/faq/linux-port-redirection-with-iptables/

markp24@,
ssh tunnelling sounds interesting. OK, I'll try to google around for this. Appreciate if you could share some useful link for ssh.

robo_dev,
Cisco product are out of my reach, and I'm not very good in ios commands. may be I'll try sonicwall, if there is no other workable solution. thanks.

seanferd,
sorry for the confusing title. I don't want to chage port the application is listening. My first priority will be port redirection method. Do you have any recommended router (reasonable price)?