I have a Cisco 837 with the 12.3.(4)T IOS and the PLUS feature set.
I have also loaded SDM V1.0.1b.
My private network uses the 10.0.0.0/24 network address range.
I have configured the router so that my internal network can access the external network using NAT. I have also secured the external interface so that it doesn't respond to any external request.
Now, what I'm attempting to do is have say port 80 on the external interface forwarded to port 80 on my server(10.0.0.1)
I am also looking to get a couple of other ports (WinMX) on the external interface forwarded to my client PC.
How do I do this? I would preferably like to do this via SDM as this is how I have configured the router already, but am willing to do this via access-list commands. I know I will need to learn the IOS access-list commands for my CCNA, but was hoping to try doing this via SDM untill I can get to the relevant point in my self taught course.