Time Capsule Does Not Port Forward FTP Ports

Hey there,
I recently purchased a Time Capsule, and I found out that while it fixes the NAT-PMP bug found in my previous AirPort Extreme Base Station (Gigabit-N), it introduces a new problem which makes it refuse to forward port 21 properly.
It seems to me that the Time Capsule has some sort of FTP server built in, and is either enabled but closes connection on client connection, or disabled but still listens for client connection.
This message is what I get when I connect to my IP via FTP from the WAN side (FTP port forwarded to a local machine with an IP 10.0.0.8):
421 Service not available, remote server has closed connection.
When it is accessed from the LAN of course, I can connect to 10.0.0.8 with no problem. However, what is interesting is if I connect to the Time Capsule via FTP I get this as well:
421 Service not available, remote server has closed connection.
Thus, I am 100% certain that the FTP message I see when I connect from WAN is from the Time Capsule instead of the machine I port forwarded to.
Apple needs to fix this annoying problem and at the same time fixes some VPN issues I'm having with my Nortel VPN client (4.68). It was all working when I had the AirPort Extreme Base Station.

I am having a problem establishing an FTP session that is started with my FTP Client (CuteFTP) on my local network and attempting to connect to an FTP Server with one of my hosting providers. My first few attempts used FTPS (Secure FTP) as that is what I typically use when transferring FTP packets over the net. Well, this didn't work so I thought maybe the Time Capsule had a problem inspecting the encrypted packets so I switched to standard clear-text FTP just to see if the Time Capsule handles FTP session management functions correctly. This didn't work either. I'm using PASV FTP and have never had a problem before with my CISCO Router or with another consumer-based NAT router. I don't believe that the Server on the Internet gets the initial request on port 21 as I believe the Time Capsule is not allowing the packet to pass and my FTP Client spits back an error message : "Couldn't access FTP service " "Connection Failed". I have also used "Terminal" and initiated the ftp utility and attempted to connect to the same server and receive the following error message : "421 Service not available, remote server has closed connection.". I have attempted to put my computer in the DMZ by using the Default Host feature on the Time Capsule but that resulted in the same errors. I believe that I have tried most of the settings available on the Time Capsule to attempt to get this to work but no luck yet. If the packet is getting through to the server and the response back on the current ephemeral port is not getting through the Time Capsule I'm really hoping the solution is not having to port map all ephemeral ports as this is in the tens of thousands. Has anyone successfully established an FTP Session (Secure or Not) from your local client through the Time Capsule to a Server on the Internet. If so, could you help by providing any Time Capsule settings that were required for this to function properly....Thanks in Advance.
Note: I have attempted to ftp to several different public ftp servers on the Internet and get the same error results. I have no problems ftping to local serverson my local network.

Similar Messages

  • My Time Capsule does not work with existing WiFi

    Following a question solved on March 24 by LaPastenague, but gone bad again.
    Apple AirPort Time Capsule
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    I am thinking of returning the TC if I don't make it work now, but how do I delete all the data that's on it?

    I can deal with the last question first and easily.
    I am thinking of returning the TC if I don't make it work now, but how do I delete all the data that's on it?
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    TC/AE will reboot after a couple of minutes with default factory settings and will wipe out previous configurations of the router.
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    Remember to keep all names short, no spaces and pure alphanumeric.
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  • Time capsule does not appear in shared devices

    All of the sudden my Time Capsule does not show up in the shared devices. It's all up to date, it is working fine as a router and internet connection works fine. It also show up in the airpot utility and the light is green however it does not show up on the shared devices so I cannot access the data folider anymore.
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    See instructions for removal of the hard disk.
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  • Time capsule does not appear in the finder.

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    What is the make and model number of your modem?
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    Was the Time Capsule visible in the Finder before, and is now "lost", or has it never appeared in the Finder?
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  • Airport time capsule does not appear within wi-fi networks on my OSX neither on my IOS devices, even though the backup for my OSX is on progress. why it does not appear?

    Airport time capsule does not appear within wi-fi networks on my OSX neither on my IOS devices, even though the backup for my OSX is on progress. why it does not appear?
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    Make sure all names are short, no spaces and pure alphanumeric.
    Do a full reset and start over.
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  • Time capsule does not show the blue bars near backing up.  Any idea why?

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  • New Time Capsule does not see Airport express

    Hi
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    I've reset one of them.  no luck
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  • Time Capsule does not wirelessly connect to wireless cable modem gateway

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  • Time Capsule does not play nicely with Cisco Router

    Three days ago, I had an older Linksys router attached to our ISP's cable modem by ethernet; the network included a wireless time capsule and apple express base station set up by our son last year (who understands this stuff, but lives 2,000 miles distant).  The router died and I purchased a new Linksys router (E2500).  It is occupying the same spot as the old router, but running with no security settings as yet.  My wife's iMac and two Windows XP laptops work just fine on the network, as well as our NetFlix connection on our TV.  My MacPro, however, can not access the main network - it can see it but won't grab an IP address.  It will, however, see and connect to the router's guest account, although with reduced signal strength.  The Time Capsule is now connected to the MacPro by ethernet (if I make it wireless, it will back up fine, but I can't access Internet or send email on the guest account).  The AirPort Express is unplugged and not a factor.
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    My first reaction is to suggest you ring your son.. !!
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    Make sure the TC is working as router.. and you should be able to setup the wireless to connect all your computers etc.
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  • Time Capsule does not have a valid IP address

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    We’re tired and frustrated! Please help.

    I would suggest running the network via a pc for the day.. pick either your Mac or win7 pc.. you will need to do a bit of fiddling.. even better would be to just borrow a router. Or buy one on a 7day return .. !! Beg borrow.. don't steal. Just get a router other than TC. it won't take long to determine if the TC is the issue.
    IMO at 18months you are suffering failure of the TC power supply. early days but it is showing signs of delinquency. And will get worse. But another router will show it up.. if the PC has dual ethernet cards you can run ICS.. or same sort of thing on the imac to the wireless .. ie the PC or Mac becomes the router with direct connection to the cable modem. Then share internet from there.
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  • Time Capsule does not appear in AirPort Utility after Yosemite upgrade

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    I'm having the same problem. Did you reset your Time Capsule to factory settings or simply restart it?

  • Time capsule does not allow me to select bridge mode or manual setup

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    You need to make sure your ISP supports pppoe as a method of authentication.. if so then you must bridge the Aztech modem.. so it no longer handles the connection.. look up the manual for the modem to find out how to do this.
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  • Time capsule does not install - unexpected error

    Hello,
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    Why do I have to have it connected to my router.
    TC is a network device. You have no access to the TC via USB.. it is not.. NO WAY.. an external hard disk.. if you wanted an external hard disk, that is what you should have purchased.
    The primary idea of the TC is a backup target for Time Machine in laptops. So that you can backup over wireless, without having to connect an external hard disk.
    Once you have a desktop an external drive is cheaper, faster, and far better with TM and eliminates overloaded network file transfers.
    Getting it connected to my router makes me worry that it is not entirely safe.
    Why.. it is safe as any network device can be.. although I have to say Apple could do with a firmware upgrade or three to fix some outstanding issues. A crash of the network will not harm files on the hard disk.. the worst that will happen say with power outage in the middle of a backup is a file will be corrupted. The whole idea of the TM is to keep multiple versions of files available for restore.
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    I guess one rule of marketing is to believe in your product.. to the exclusion of any rational argument or thinking or demonstation to the contrary.. and apple do not lack for total belief in the product. Beware of people who believe their own propaganda.
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    Q14-17 of Pondini's excellent knowledge base article.
    http://pondini.org/TM/FAQ.html
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    Now let me try to explain why the TC has to be plugged into a router..
    The TC is a router. It either must function as router or be plugged into a router in order for your network functionality to provide full services. eg internet.
    Please consider a setup where you have a network.. like you already had.. and a TC not plugged into the network.. but creating its own.
    You connect by wireless to the network.. but you cannot connect to two wireless devices at once.. so you need to choose.. either connect to the main existing router and use internet.. or connect to the TC.. and do backups but have no internet, no printing, no file sharing.. except with the TC.
    Now you can work around it.. you can plug the TC in by ethernet and use the main router by wireless or visa versa.. but you cannot connect to two different network devices on different networks at once unless the networks are joined.
    If you want the TC stand alone, I can give you details of the setup.

  • Airport network form time capsule does not see airport express

    Hello,
    I'm rather new, bought my first apple few days ago, it's great. Have been throwing away years by using the blue screen machines
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    time capsule to make my network and the airport express to connect my stereo.
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    how to proceed?
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    Sorry for the long story,
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    Rik

    oh oh oh oh........ :O
    Found it.... before i connected the a.express with time capsule by a wire....does not help!
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    After this wire everything worked in 5 minutes.
    Anyway.... thanks for reading...
    Rik

  • ATT hooked up new u-verse router, now time capsule does not work and airport utility does not see it ?

    ATT hooked up the new U-verse router replacing the older 2wire router. Old 2wire router worked fine with Airport +Time Capsule. Now only the amber light flashes. When I try to reconnect with Time Machine it does not find the Time Capsule nor does the airport utility find the Time Capsule. Any help?

    Okay, the 3801HGV also doesn't bridge - but there is a workaround. Info on the workaround comes from 'SomeJoe7777' at this link:
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    If I'm right about the 192.168.1.x address, and that your TC is running with 10.0.1.x addresses, then that's why your Mac can't see your TC. In this case, you need to change the Mac's Ethernet setup to manually set your Mac to a 10.0.1.x address for the TC to see. To do this, go to System Preferences, then Network, then click Ethernet on the left side.
    Set the Configure IPv4 dropdown to 'Manually', and it will open up some places for you to fill in information:
    IP Address: 10.0.1.15 (or a similar number that won't conflict with your TC's address, but starts with 10.0.1)
    Subnet Mask: put in 255.255.255.0
    Router: 10.0.1.1 (I'm assuming here that your TC was running with the default IP address; if it was something different, then set Router to whatever IP address your TC was using.)
    Then, click the Apply button to make your changes active.
    Now, since your Mac's IP address will be in the right "subnet" for your TC, they should be able to see each other. (It's kind of like having to live on the same block as someone to be able to talk with them. In general, if your computers don't have similar addresses, they can't talk to each other. Of course that's simplified greatly, but you probably get the idea...)
    Once you've got the IP addresses matched up, you should be able to see your TC. At that point, you can update the TC to work with the 3801HGV. I recommend setting it to bridge mode, but if you can follow SomeJoe7777's advice, go for it!

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