Slow PERFORMANCE with PAT and Port Forwarding (Router 2921)

[Timohamoto]

Hello everyone! 

Here is simple topology.

I have very slow internet connection thru the router. And FTP server unbelievable slow for access from internet.

[Aref Alsouqi]

Hi,

Please correct me if I'm wrong, should not you defined only the ftp server ip address in the access list tied to the ip nat service?, please try to do a simple configuration and see if it works, example:

access-list 1 permit host 192.168.1.135
ip nat service list 1 ftp tcp port 1600

Regards,

Aref

[Timohamoto]

Hi, Aref. Thanks for attention, I don't think it reasonable.

I was playing around with Dialer 0 interface and by removing that strings:

no ppp pfc local request
no ppp pfc remote apply

( cause I have no idea what does it mean )  I got it working properly.

[Aref Alsouqi]

Glad to know that. I don't have any experience with those commands, but please check out this link where they are explained:

http://www.cisco.com/c/en/us/td/docs/ios/12_2/12_2b/12_2b8/feature/guide/12b_acf.html

Regards,

Aref