Rinetd
From Docunext Technology Wiki
I've been looking for a program like rinetd for a looong time. Its very simple - it just redirects TCP connections from one IP port combination to another.
Rinetd Configuration
/etc/rinetd.conf
# # this is the configuration file for rinetd, the internet redirection server # # you may specify global allow and deny rules here # only ip addresses are matched, hostnames cannot be specified here # the wildcards you may use are * and ? # # allow 192.168.2.* # deny 192.168.2.1? # # forwarding rules come here # # you may specify allow and deny rules after a specific forwarding rule # to apply to only that forwarding rule # # bindadress bindport connectaddress connectport 192.168.0.48 82222 192.168.0.59 80 192.168.0.48 5900 192.168.0.59 5900 # logging information logfile /var/log/rinetd.log # uncomment the following line if you want web-server style logfile format # logcommon