Objective: access from internet to http and ssh service on LINUX PC with MANDRIVA2009.1 OS in small home net.
Home net: Telekom DSL router w503v version C with direct connections to WindowsXP system, MANDRIVA2009.1 system and Dlink wlan access point.
wlan of w503v not active. MANDRIVA PC has running ssh and http servive, working well in intranet, using fixed IP addresses in same area as w503v (192.168.2.xx).
Did several trials to enable access to MANDRIVA PC from outside via DSL router. Last trial is as follows:
1) http forwarding (Weitereitung) on port 80 to proper 192.168.2.xx
2) ssh redirection (Umleitung) on port 24 to same IP address.
Here it should be noted that http is using predefined web-server in the router and that "ssh" is specified in an empty input box (offer is only second web-server).
For DNS the DynDNS support is successfully applied with manual adjustment of provider IP address.
Result:
- In intranet, i.e. clients with IP address 192.168.2.xx both http and ssh work with resolved DynDNS name.
- In internet http works without observed problems, shh is not responding on port 24. Also ping does not work.
Any hints how to proceed to get ssh working? Does somebody have a working environment for access from internet to intranet with speedport w503v-C?
Thanks in advance for any hint

Do you realise that port forward is "service independent". It doesn't matter for router what and how you are going to use port. Only one thing you should state - TCP or UDP.

Therefore, you can forward any ports at all, for example
for http TCP ext_IP:2345 - to - int_IP:80
for ssh TCP ext_IP:2400 - to - int_IP:23 (or any, depends on client configuration)

Thank you for this explanation. It is additional information for me, but does not solve my problem. I changed the incoming port address from 24 to 4024. This works for ssh in intranet, i.e. from 192.168.2.xx, but not from outside. The same ip-address outside has access to the port 80 for http on my home computer. Is there any information about bugs of the speedport w503v-C router?

Please try to forward like this:

TCP ext_IP:55000 forward to int_IP:4024

Then try to connect to port 55000 of your router.

After my previous trials I am not too surprised that this does not solve my problem