I have setup FileZilla on a server that is behind a CISCO 1720 Router. Obviously it needs to run in passive mode using port forwarding and supporting passive connections.
What I have done is:
In FileZilla:
- assigned the real Internet IP in the passive settings
- assigned the port range 40100 - 40104
- created a test account
On the CISCO 1720 I have attempted to create the port forwarding as follows:
ip nat inside source 192.168.0.10 tcp 21 interface Ethernet 0 21
ip nat inside source 192.168.0.10 tcp 20 interface Ethernet 0 20
ip nat inside source 192.168.0.10 udp 20 interface Ethernet 0 20
ip nat inside source 192.168.0.10 tcp 40100 interface Ethernet 0 40100
ip nat inside source 192.168.0.10 tcp 40101 interface Ethernet 0 40101
ip nat inside source 192.168.0.10 tcp 40102 interface Ethernet 0 40102
ip nat inside source 192.168.0.10 tcp 40103 interface Ethernet 0 40103
ip nat inside source 192.168.0.10 tcp 40104 interface Ethernet 0 40104
When I am connecting to my real Internet IP FTP (trying to simulate as if I am connecting from outside) I get the following error: WSAECONNREFUSED (No connection could be made because the target computer actively refused it. This usually results from trying to connect to a service that is inactive on the foreign hostthat is, one with no server application running)
PS:
Connecting to the FTP using internal LAN address works perfectly, only from outside I get WSAECONNREFUSED
Looking forward to solutions.
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First of all FileZilla is server too.. if you dont know about it feel free to visit http://filezilla-project.o
I am interested for mode details about active / passive according to my setup. (tried only active and not working, same error at connection)
Thank you
I am not sure about how correct your advice was. I have however applied it accordingly:
ip nat inside source static 192.168.0.10 tcp 21 192.168.0.10 tcp 21
ip nat inside source static 192.168.0.10 tcp 20 192.168.0.10 tcp 20
ip nat inside source static 192.168.0.10 udp 20 192.168.0.10 udp 20
ip nat inside source static 192.168.0.10 tcp 40100 192.168.0.10 tcp 40100
ip nat inside source static 192.168.0.10 tcp 40101 192.168.0.10 tcp 40101
ip nat inside source static 192.168.0.10 tcp 40102 192.168.0.10 tcp 40102
ip nat inside source static 192.168.0.10 tcp 40103 192.168.0.10 tcp 40103
ip nat inside source static 192.168.0.10 tcp 40104 192.168.0.10 tcp 40104
Same error at connection from outside, nothing changed.
Update my port forwarding to :
ip nat inside source static 89.137.174.88 tcp 21 192.168.0.10 21
ip nat inside source static 89.137.174.88 tcp 20 192.168.0.10 20
ip nat inside source static 89.137.174.88 udp 20 192.168.0.10 20
ip nat inside source static 89.137.174.88 tcp 40100 192.168.0.10 40100
ip nat inside source static 89.137.174.88 tcp 40101 192.168.0.10 40101
ip nat inside source static 89.137.174.88 tcp 40102 192.168.0.10 40102
ip nat inside source static 89.137.174.88 tcp 40103 192.168.0.10 40103
ip nat inside source static 89.137.174.88 tcp 40104 192.168.0.10 40104
I update this because the syntax is source-> destination. Even if this is now correct, still same error upon connecting from outside.
Please help.
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by: newborn1281Posted on 2008-01-10 at 12:31:37ID: 20630862
you dont really need passive mode you just need to open ftp ports on cisco, and switch your FTP server to active mode only, If you want to run the way you have you have to specify on your FTP server to use only specified port for passive connection not your client and as far as i know filezilla is a client.