Simple Cisco port forwarding

Here’s the recipe for port forwarding on a cisco device - this is tested on a Cisco 877, but should work on any of the 800 series, 837, 887 etc etc. Anything that does NAT…

So if I wanted to send TCP traffic to port 125 on my router’s external adsl interface from the internet, and it show up on port 25 of the internal ip 10.0.0.2, I’d do:

 


November 7, 2013 · 1 min reading time
#Cisco #networking #Work