Posted:
Thu Nov 25, 2004 3:38 am Post subject: HELP! Linksys RT31P2 Router and running an FTP site.
Okay... they sent me the new Linksys router/phone adaptor because my VT1005 crapped out on me. I really like this box, except...
I have two computers. The 2nd one runs an FTP server on port 900. I have turned on port forwarding to allow port 900 to point to 192.168.15.100 (IP address of the FTP server PC). The problem: people can connect to it, but when they try to get a DIR listing, it comes back with "cannot open data connection" errors. They can't actually transfer data. I even tried enabling DMZ for the server PC. Same problem. PLEASE tell me there's a way to fix this. I never had this problem with the old Motorolla box...
Kevin
paul248 Vonage Forum Evangelist
Joined: Nov 25, 2004 Posts: 646
Location: Mountain View, CA
Posted:
Fri Nov 26, 2004 2:05 am Post subject: Re: HELP! Linksys RT31P2 Router and running an FTP site.
RainKing wrote:
Okay... they sent me the new Linksys router/phone adaptor because my VT1005 crapped out on me. I really like this box, except...
I have two computers. The 2nd one runs an FTP server on port 900. I have turned on port forwarding to allow port 900 to point to 192.168.15.100 (IP address of the FTP server PC). The problem: people can connect to it, but when they try to get a DIR listing, it comes back with "cannot open data connection" errors. They can't actually transfer data. I even tried enabling DMZ for the server PC. Same problem. PLEASE tell me there's a way to fix this. I never had this problem with the old Motorolla box...
Kevin
When people are connected to your FTP server in passive mode (as most clients do) and they try to establish a data connection, the FTP server will open another port (other than 900) and tell the client "connect to this IP address on this port." If you don't have a router-friendly FTP server, then it will tell the client to connect to your 192.168.x.x LAN address, which can't be accessed from the Internet.
So, in order to set up an FTP server behind a router, the server has to have a place to type in your real IP address, so that it can send that address to the clients. Also, if you don't want to use DMZ, then the FTP server will need a place to type in a range of ports to use for the incoming connections.
There are lots of FTP servers that have those features (GuildFTPd comes to mind), so check to see if yours does. If not, you may have to find a new one.
Posted:
Sun Dec 05, 2004 3:00 am Post subject: Re: HELP! Linksys RT31P2 Router and running an FTP site.
paul248 wrote:
So, in order to set up an FTP server behind a router, the server has to have a place to type in your real IP address, so that it can send that address to the clients. Also, if you don't want to use DMZ, then the FTP server will need a place to type in a range of ports to use for the incoming connections. There are lots of FTP servers that have those features (GuildFTPd comes to mind), so check to see if yours does. If not, you may have to find a new one.
Thanks for your help! I installed GuildFTP and it works like a charm! Freeware, too. Rock on. My problem is solved. Thanks again.
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