Re: Can't open FTP data connection

From: Uchil Perera (uchil.groupstudy@yahoo.com)
Date: Mon Jan 28 2008 - 12:57:48 ARST


Hi,
   
  Try using the "ip nat service " command, it should solve your problem.
   
  http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hiad_r/adr_i2h.htm#wp1178856
   
  Regards
   
  Uchil
  CCIE # 18536

EDL <r.s.cciestudy@gmail.com> wrote:
  Did you try this?

ip nat inside source static tcp 192.168.1.2 20 interface Dialer1 200

On Jan 22, 2008 9:23 AM, nhatphuc wrote:

> Hi Group
>
> I want to nat an FTP server in my inside network.
>
> If I nat like this:
>
> ip nat inside source static tcp 192.168.1.2 20 interface Dialer1 20
> ip nat inside source static tcp 192.168.1.2 21 interface Dialer1 21
>
> Everything works well
>
> But If I nat to port 210 on the outside, it doesn't work:
>
> ip nat inside source static tcp 192.168.1.2 20 interface Dialer1 20
> ip nat inside source static tcp 192.168.1.2 21 interface Dialer1 210
>
> Total commander stops responding when downloading file list. FTP Server
> says
> it couldn't connect to peer, client says can't open data connection. I'm
> using active FTP.
>
> Why is it so? And how do I fix it?
>
> Thanks
>
> Phuc
>
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