Sorry it this has been addressed elsewhere but I couldn't locate anything. I have a Cisco 1800 router. I'm trying to open up a nat translation from a hosted email into my internal email server. Our Cisco 1800 has an existing IP Nat record for port 25 routing to our old server and won't clear it. I've tried "no ip nat translation..." and "clear ip nat translation..." along with about 20 variations on the command and I'm continually getting "Invalid input at [varies based on my specific command]". I've copied verbatum the commands on Cisco's site only changing the specific IP's.
What I really need is to direct traffic on port 25 from IP ###.###.##.## to my internal IP via my external IP. Can someone help with the specific command to change my existing nat to the required nat?
Thanks in advance for your help.
P.S. I have reloaded the router and it had no effect on the outcome of the various flavors of the command I'm entering. Also, I did get it to act like it cleared the existing record but when I tried to reload the new record I was informed a record already existed for port 25 giving me the old Internal IP address.
What I really need is to direct traffic on port 25 from IP ###.###.##.## to my internal IP via my external IP. Can someone help with the specific command to change my existing nat to the required nat?
Thanks in advance for your help.
P.S. I have reloaded the router and it had no effect on the outcome of the various flavors of the command I'm entering. Also, I did get it to act like it cleared the existing record but when I tried to reload the new record I was informed a record already existed for port 25 giving me the old Internal IP address.