Gustof
@uswest.net
| ftp behind router using NAT on ports other than 21
When running a ftp server on the LAN side with either a Netgear RT311 or RT314 using NAT Does it have to be on port 21 for people on the WAN side to connect or can it be served on any port? Also with the same scenario can I connect to outside ftp servers that are on a port other than 21? With my Linsys router everything must be on port 21 for ftp to function properly. See: »www.practicallynetworked.com/sup···port.htm I will buy a netgear or any other recommendations if it can do ftp behind NAT on any port. |
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Gustof
@uswest.net | www.practicallynetworked.com/support/linksys_ftp_port.htm |
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Jon_Hanson
Mountain Dew Rules
Premium
join:2001-07-09
Gilbert, AZ
| reply to Gustof
said by Gustof:
When running a ftp server on the LAN side with either a Netgear RT311 or RT314 using NAT Does it have to be on port 21 for people on the WAN side to connect or can it be served on any port? Also with the same scenario can I connect to outside ftp servers that are on a port other than 21? With my Linsys router everything must be on port 21 for ftp to function properly. See: »www.practicallynetworked.com/sup···port.htm I will buy a netgear or any other recommendations if it can do ftp behind NAT on any port.
There's nothing that says that FTP has to be run on a specific port. You can run it on any port you wish as long as it doesn't interfere with other active services. People will just have to append a colon (":") and the port number that you're running on. |
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tahjah$
Premium
join:2001-11-03
| reply to Gustof
Just as Jon said, you can run FTP on any free port on the server. I thought Linksys had a page in the setup where you could map external ports to internal ports, and change the IP's if necessary. You can specify any free IP, as long as the FTP server allows any port. If not, you could try PAT, and forward an port to the internal 21 on the server.
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I can't think of anything catchy to put here, so I'll just leave it blank. |
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Gustof
@uswest.net
| reply to Gustof
Thanks guys I appreciate the replies but you missed my point. I've tried to host on other ports than 21 and nobody could connect. In addition I cant connect to any ftp servers that run on any port other than 21. Did you go to the link in my original post and see last paragraph. |
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PixelFreak
Innocent Until Proven Guilty
join:2001-02-21
Bremerton, WA
|  reply to Gustof
Yikes...I see what you are talking about now.
Basically, all the answers above are true (without the LINKSYS, evidently). If you were using any other type of firewall, you could simply run an FTP server on any port, and append your commands with a : and add the port number. For example, »ftp://my.example.com:2121 would allow you to ftp to that site at port 2121. (it is recommended to use something over 1024 to avoid conflicts with any other port defaults , but not necessary.)
BUT, with the information on that webpage that you linked to above (see first post in thread), it seems to be saying that the Linky fails to allow a common task. Shameful, since they are so common. If that article is true, I would recommend something like a Netgear. Very simple GUI to follow and understand, but therefore a little more limited in functionality (generally.) I personally use an RP114 and have been VERY happy with it, and they are less than $100 most places. In fact, I would sell you mine (only four months old for $50, I am looking to upgrade to a wireless access point.  )...
Regardless, it sounds like you have done your homework, and if the report in that article is correct, you are stuck without the ability to change your default FTP (and still having it work) on your WAN side. Lame. Let us know if you somehow find a way around it!
Pixel
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Up here in Seattle, we like the rain; it gives an excuse to get online and frag! |
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