Cisco 877 NAT Routing Help Needed

Unanswered Question
Apr 26th, 2008

Hi people, im new here. I have got a Cisco 877 with Advance Sec ISO. I have configured it for internet access and I am able to connect and surf the internet on all PCs on my inside network. The next thing I need to be able to do is run a webserver and ftp server inside with access from the WAN. So my question is. How do I setup a port forward for web port 80 and ftp port 21 to my internal server Any help would be fantastic.



I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
willcavanagh Sat, 04/26/2008 - 04:03

Thank you very much for the quick reply. I have attached my conf, can you tell me if it looks right. I have got access to the webserver now, but not the ftp. So close.

Thanks again.

mahmoodmkl Sat, 04/26/2008 - 04:16


can u try adding extendable keyword in ur translation entires.



willcavanagh Sat, 04/26/2008 - 04:24

Adding the following line.

ip nat inside source static tcp 21 interface Dialer1 21 extendable

Comes back Invalid input detected.

mahmoodmkl Sat, 04/26/2008 - 04:41


it should be like this,try n check.

ip nat inside source static extendable



willcavanagh Sat, 04/26/2008 - 04:50

Sorry, I might be being silly, but still no joy. It just gets Invalid input detected and pointing to the word extendable.

willcavanagh Sat, 04/26/2008 - 06:42


It was nothing missing, it was my friend who was testing for me from external typing in the wrong IP address for the FPT. So user error. NAT is working like a dream. Next fun thing is the VPN, but will be leaving that for another fun day.

Thanks again for the pointers, very helpful.



This Discussion