Solved

Port Issues and FTP

Posted on 2008-11-01
5
489 Views
Last Modified: 2013-12-02
I just set up FTP on my Windows Server 2003 box with a port number of 4465 for FTP commands.  (It's not 21.)  I can access the FTP home directory using the server itself (127.0.0.1) or any workstation in my LAN.  I'm having trouble, however, accessing the server from the WAN.  I've opened up my DSL router firewall for TCP ports 20 (FTP data) and 4465.  Here's the message I get when I try to access my new FTP server from a remote machine using Filezilla:

Status:      Connected
Status:      Retrieving directory listing...
Command:      PWD
Response:      257 "/" is current directory.
Command:      TYPE I
Response:      200 Type set to I.
Command:      PASV
Response:      227 Entering Passive Mode (192,168,1,2,6,212).
Status:      Server sent passive reply with unroutable address. Using server address instead.
Command:      LIST
Response:      425 Can't open data connection.
Error:      Failed to retrieve directory listing

I'm clearly "getting in the door."  The 192,168,1,2 value is the static IP of my server on the LAN.  Note the subsequent response, however: "Server sent passive reply with unroutable address. Using server address instead."  

My ISP does have a firewall in place for port values under 500.  Am I running into this firewall for port 20?  
Is it something else?
What diagnostics can I try?
0
Comment
Question by:jdana
  • 2
  • 2
5 Comments
 
LVL 35

Accepted Solution

by:
torimar earned 400 total points
ID: 22857338
Two things you might want to try:

1. Disable Passive Mode in FileZilla;
2. Configure the server to reply with its external address.
0
 
LVL 26

Assisted Solution

by:akahan
akahan earned 100 total points
ID: 22857345
On your router, you need to not just open up the firewall, but also forward ports 4465 and 20 to the server's LAN IP address.  Have you done that?
0
 

Author Comment

by:jdana
ID: 22860754
torimar
1. I disabled passive mode.
2. Not sure how to configure server to respond with its external address.
akahan
I had configured port forwarding for 20 and 4465 to the server's LAN address.  I wasn't clear on this in the original posting.
0
 
LVL 35

Assisted Solution

by:torimar
torimar earned 400 total points
ID: 22860945
1. Does this mean you disabled PASV now and tested, or generally disabled it? Because the logs you posted certainly don't speak of an active connection attempt.

2. Unfortunately, I don't know how to do this for the Windows FTP server. It's easy in FileZilla's server: just select Passive Mode Settings.
0
 

Author Closing Comment

by:jdana
ID: 31512499
For "Active IP Mode" I made the changes shown in the screen shot.  These are changes made to the client.  The error message, however,  sure makes it look like the issue resides with the server.  I found a K-Base article that explains how to make the change.
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Problem: Windows 32bit running out of paging space. Solution: Add additional page files on separate partitions. Background: By default Windows creates only one page file on the partition you install Windows on. You may know that the maximu…
Hi All,  Recently I have installed and configured a Sonicwall NS220 in the network as a firewall and Internet access gateway. All was working fine until users started reporting that they cannot use the Cisco VPN client to connect to the customer'…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

706 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now