Ok this is going to be really simple to answer, so it should be 500 easy points.
I have a Cisco 1720 with a WIC-1ADSL.
For as long as I can remember I have tried to find out how to do this and just have not been able to work it out.
How do I enable telnet to the cisco box on the IP Address assigned to the WIC Card by my ISP?
My ISP assigns the IP Address to my Cisco, I use interface dialer 0.
Once the IP Address is assigned I can not telnet to my router from the Internet, it just does not work, I know the packet is arriving because I can see it on the access lists!! But the connection does not work, the Cisco just drops it.
I am also unable to telnet from the Internal Ethernet Network to the IP address assigned by my provider.