I have been trying to get access to my office network network for a few weeks now without any luck. Here's the scenario:
I have a Cisco 678 using Qwest DSL. I have a block of static IPs. I have a Linksys DSL/Cable router behind the Cisco. The internal IP to my Linksys is 192.168.0.1 and the computer that I want access to is 192.168.0.21 and the program I'm using on that computer uses port 1387.
I have already added the following line to my Cisco 678:
set nat entry add 192.168.0.1
I first tried "set nat entry add 192.168.0.21" but after I though about it, I would like to pass all ports through the Cisco to the Linksys. Then allow the Linksys to block all ports except for 1387. I want to block all ports, excluding port 1387--sending this traffic to IP 192.168.0.21.
Let me know if there's a better way to go about this or what I'm doing wrong. Thanks!