[SOLVED] FTP using Port Forwading

327jwolf · 07-03-2009, 05:18 PM

I am trying to access a device that has a built in ftp server. I can access it on the local lan or through a vpn. I can't seem to access it from outside using the ftp command in xp-command prompt. I can get to using file explorer, but not from the ftp open command. I have portforwarding setup to forward an ftp request at port 8303 to port 21 on the device.

Any have any ideas.

Thanks

johnwill · 07-03-2009, 06:23 PM

Why would the FTP come in port 8303? Are you sure your router does the translation between different ports?

327jwolf · 07-03-2009, 06:36 PM

I use port forwarding all time. It's a cisco pix 501.

The thing I find strange is that I can access it from IE. using ftp://xxx.xxx.xxx.xxx:8303, but I can't use xxx.xxx.xxx.xxx:8303 to open a session using FTP> or even using FTP Commander.

**Jason09** · 07-03-2009, 07:16 PM

Try downloading and installing the PF port checker to see if the ports are really open.

327jwolf · 07-03-2009, 10:20 PM

Aren't the ports open if I can get to the address from outside using ftp://xxx.xxx.xxx.xxx:8303 in explorer

**Jason09** · 07-04-2009, 09:09 AM

They should be.

327jwolf · 07-04-2009, 07:03 PM

Do you know if the FTP command in DOS excepts the format;

ftp>open xxx.xxx.xxx.xxx:8303
?
I use this format so other devices behind the firewall can use the standard ports. This is a device not a true pc, but since it goes into other peoples' lans I don't like using standard ports. The device is still using port 21, but any call for the ftp protocol on port 8303 get send directly to that device.

I do that same thing with HTML and remote desktop calls, I've never had a problem using it.

I just can't figure out how I can get to it using IE and not a FTP Client.

By the way, I checked and the ports are open.

Any ideas? I'd love to hear them.

**Jason09** · 07-05-2009, 12:29 PM

I have not used the FTP command in DOS, so I can't really say.

327jwolf · 07-06-2009, 02:44 PM

I finally got it to work in FTP Commander and a couple of other clients, but I still haven't gotten it to work in DOS.

I just may be that DOS can't take the port redirection. I will consider this thread closed.

Thanks for all the help.

Jim

07-03-2009, 05:18 PM	#1 (permalink)
327jwolf Registered User Join Date: Jul 2009 Posts: 7 OS: xp	[SOLVED] FTP using Port Forwading I am trying to access a device that has a built in ftp server. I can access it on the local lan or through a vpn. I can't seem to access it from outside using the ftp command in xp-command prompt. I can get to using file explorer, but not from the ftp open command. I have portforwarding setup to forward an ftp request at port 8303 to port 21 on the device. Any have any ideas. Thanks

07-03-2009, 06:23 PM	#2 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 40,965 OS: Windows 7, XP-Pro, Vista, Linux Blog Entries: 1	Re: FTP using Port Forwading Why would the FTP come in port 8303? Are you sure your router does the translation between different ports? __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience

07-03-2009, 06:36 PM	#3 (permalink)
327jwolf Registered User Join Date: Jul 2009 Posts: 7 OS: xp	Re: FTP using Port Forwading I use port forwarding all time. It's a cisco pix 501. The thing I find strange is that I can access it from IE. using ftp://xxx.xxx.xxx.xxx:8303, but I can't use xxx.xxx.xxx.xxx:8303 to open a session using FTP> or even using FTP Commander.

07-03-2009, 07:16 PM	#4 (permalink)
Jason09 Moderator, Games Team Join Date: Jan 2009 Location: Near Washington, D.C. Posts: 2,225 OS: Windows XP Home Edition Service Pack 3 My System	Re: FTP using Port Forwading Try downloading and installing the PF port checker to see if the ports are really open. __________________ Gaming troubleshooting steps. Real peace cannot be found in what happens in Washington, D.C. Only God can give true peace to people.

07-03-2009, 10:20 PM	#5 (permalink)
327jwolf Registered User Join Date: Jul 2009 Posts: 7 OS: xp	Re: FTP using Port Forwading Aren't the ports open if I can get to the address from outside using ftp://xxx.xxx.xxx.xxx:8303 in explorer

07-04-2009, 09:09 AM	#6 (permalink)
Jason09 Moderator, Games Team Join Date: Jan 2009 Location: Near Washington, D.C. Posts: 2,225 OS: Windows XP Home Edition Service Pack 3 My System	Re: FTP using Port Forwading They should be. __________________ Gaming troubleshooting steps. Real peace cannot be found in what happens in Washington, D.C. Only God can give true peace to people.

07-04-2009, 07:03 PM	#7 (permalink)
327jwolf Registered User Join Date: Jul 2009 Posts: 7 OS: xp	Re: FTP using Port Forwading Do you know if the FTP command in DOS excepts the format; ftp>open xxx.xxx.xxx.xxx:8303 ? I use this format so other devices behind the firewall can use the standard ports. This is a device not a true pc, but since it goes into other peoples' lans I don't like using standard ports. The device is still using port 21, but any call for the ftp protocol on port 8303 get send directly to that device. I do that same thing with HTML and remote desktop calls, I've never had a problem using it. I just can't figure out how I can get to it using IE and not a FTP Client. By the way, I checked and the ports are open. Any ideas? I'd love to hear them.

07-05-2009, 12:29 PM	#8 (permalink)
Jason09 Moderator, Games Team Join Date: Jan 2009 Location: Near Washington, D.C. Posts: 2,225 OS: Windows XP Home Edition Service Pack 3 My System	Re: FTP using Port Forwading I have not used the FTP command in DOS, so I can't really say. __________________ Gaming troubleshooting steps. Real peace cannot be found in what happens in Washington, D.C. Only God can give true peace to people.

07-06-2009, 02:44 PM	#9 (permalink)
327jwolf Registered User Join Date: Jul 2009 Posts: 7 OS: xp	Re: FTP using Port Forwading I finally got it to work in FTP Commander and a couple of other clients, but I still haven't gotten it to work in DOS. I just may be that DOS can't take the port redirection. I will consider this thread closed. Thanks for all the help. Jim