Port Forwarding on MN-500

[- 781 -]

I am running Windows XP Pro, using cable connection.
I have purchased ServU FTP Server and have been working with it perfectly
untill I got MN-500 router. There are instructions on how to setup the port
forwarding but I'm unable to get my server running with MN-500.

Here are the help instructions from ServU:

*** START OF HELP FILE ***

Configure the router to forward ports 20 and 21 to the internal IP address
where Serv-U is listening. This allows the FTP traffic to be routed through
the router and into Serv-U. There should be options in the router to forward
these ports.

In Serv-U setup the IP for Passive mode to reflect the actual IP Address and
not the Internal IP address Serv-U sees:
a.. Select "Settings" under your domain.
b.. Select the "Advanced" tab.
c.. Enter the external IP address of your internet connection. If you are
using Serv-U with a dynamic IP address, leave this field blank.
d.. Set up the PASV port range option in Serv-U. Under "Local Server"
select "Settings" and then the "Advanced" tab. Here you will see the PASV
port range option.
When setting up the PASV port range, we recommend opening up ports 2000 -
2010. Then open up the same port range in your router and map them to the
Serv-U server.

You should now be able to connect from any FTP Client using PASV mode.

However, if you are still unable to connect disable the Block "FTP_bounce"
attacks and FXP. This option has been known to cause complications with some
connections.

*** END OF HELP FILE. ***

Here is the log file from ServU:

*** START OF LOG FILE ***

Mon 12Apr04 18:55:09 - Serv-U FTP Server v5.0 - (5.0.0.4) - Copyright (c)
1995-2004 Cat Soft, All Rights Reserved - by Rob Beckers
Mon 12Apr04 18:55:09 - Cat Soft is an affiliate of Rhino Software, Inc.
Mon 12Apr04 18:55:10 - Using WinSock 2.0 - max. 32767 sockets
Mon 12Apr04 18:55:11 - Loaded SSL/TLS libraries
Mon 12Apr04 18:55:11 - FTP Server listening on port number 43542, IP
127.0.0.1
Mon 12Apr04 18:55:12 - SERVER IS NOT LISTENING ON IP MY.IP.ADD.RESS: Port
number 21 already in use!
Mon 12Apr04 18:55:12 - Valid registration key found
Mon 12Apr04 18:55:52 - SERVER IS NOT LISTENING ON IP MY.IP.ADD.RESS: Port
number 21 already in use!
Mon 12Apr04 19:03:23 - SERVER IS NOT LISTENING ON IP MY.IP.ADD.RESS: Trying
to use non-existent IP address?
Mon 12Apr04 19:08:37 - SERVER IS NOT LISTENING ON IP MY.IP.ADD.RESS: Port
number 21 already in use!
Mon 12Apr04 19:21:44 - SERVER IS NOT LISTENING ON IP MY.IP.ADD.RESS: Port
number 21 already in use!

*** END OF LOG FILE ***

I am unable to connect by typing: ftp://MY.IP.ADD.RESS/
What am I doing wrong or what needs to be done?
Please help out. Thanks in advance.
Gino

 

[Jason Tsang]

Your port 21 is in use by something else.

Are you using IIS and did you enable its FTP component? If so, ServU won't
be able to bind to port 21.
Otherwise, you'll need to find what is using port 21

You can use netstat -ao to see what PID is binding itself to port 21.
After getting the PID number, you can use the tasklist command to match the
PID to the process that is holding it.

 

[dglock]

i use serv-u,you aren't locked into using port 21.
you can use any port except 80 whch ie uses.
i use a high port because of people with scanners looking
for an ftp to hack.
any port above 3000 is fine.
don

 

[joker]

Are you trying to connect to your FTP server from behind the router? If
you are you will need firmware version 1.09.* or higher to have the loop
back support enabled.

 

[- 781 -]

Thank you all for replies.

dglock can you tell me what settings need to be done for Serv-U to work with
MN-500?

One thing I don't understand is:

FTP Server listening on port number 43542, IP 127.0.0.1

Where does port 43542 come from within serv-u?

Is this the port to be changed? If so, I can't find where this number is
typed in Serv-U.
And it's not the same port number as I specify in FTP server port box.

Please respond.
Thanks
Gino