ADSL2MUE modem & Ftp

Discussion in 'Other Linksys Equipment' started by stof7, May 9, 2008.

  1. stof7

    stof7 Addicted to LI Member


    I plan to buy a NAS for holding a ftp server (amongst other things) without the PC on, so I need the connection to be PPOA in the administration/setup modem page, because it won't work with bridge mode only, I mean i'll have to start the PC (stop me if wrong)

    Of course I have a LAN with a 5 ports Switch at home which can, or at least should allow this to happen, but it seems that when in PPOA or PPOE the FTP protocol won't work at all because of the firewall.
    A this time the FTP server is working fine with no-ip DNS service, from the PC & with the modem in bridge mode only

    So my questions are :

    - am I right about the FTP not working in PPOA ?

    - is there an (easy) workaround (keep in mind the internet should be working without the PC turned on, that's what a NAS is all about right) ?

    - only solution, buy another modem which could allow ftp ? which would be a shame because apart from this firewall that can't be "mod" I'm very happy so far with the modem.


    NB : I heard about a beta FW & if I remember well I tried it quite some time ago & it went not well at all, a few days after the modem was dead (but still on warranty so that was ok), sorry for my bad english, this is not my native language:wink:
  2. mstombs

    mstombs Network Guru Member

    No reason why ftp can't work through a firewall (sometimes 'passive' mode needed), but if you are still on Linksys 4.12/4.22 firmware you probably don't have any web configuration options to do the port forwarding or auto nat ftp helper functionality.

    Have a look at RouterTech firmware for possible 3rd party alternative which should be able to do anything you want. Only potential downside I can see is that some users find the newer ATM/DSP drivers won't work in ADSL2+ with the original Linksys 5V/1A PSU.
  3. stof7

    stof7 Addicted to LI Member

    Thanx for your answer,

    like I explain, had a bad experience with a non official FW (can't remember which version beta or not), my modem died a few days later, so if I could avoid a FW upgrade that would be great.

    I found in a french forum someone has post some info to modify the firewall with "putty" to allow some program called "echamblard" to run through the modem,

    I would feel more comfortable, using this "way" to allow my FTP needs, maybe you know much more about command line to achieve this.

    Here are the step by step he wrotes (already 2 years ago:eek:)

    ahumm....with a bit of french between the lines

    each * = "enter" key

    CONNEXION A LA CLI (Command Line Interface)

    Lancez Putty, Tapez l'addresse IP de votre modem chez moi c'est, et faites OPEN. Une fenetre d'avertissement arrive et faites OUI pour éviter de la revoir.

    Pour avoir un fonctionnement optimal d'Echamblard il faut rediriger les ports suivants : 4662 TCP et 4672 UDP, pour faire ca il faut :

    Pour info : à chaque * tapez sur entrée

    Login as: écrivez root*
    root@'s password:écrivez votre mot de passe (les caracters n'apparaisent pas : c'est normal) *
    DSL Modem CLI
    Copyright (c) 2004 Texas Instruments, Inc.

    cli> enable*
    Password: Admin* (Ici le mot de passe est : Admin (respectez la majuscule), vous remarquerez que cli> devient cli# signe du mode privilégié)
    New priv level = 5
    puis tapez ce qui suit :
    connection 1*
    port forward enable*
    port forward rule-add name echamblardtcp src-ip src-netmask protocol tcp port-start 4662 dst-ip dst-netmask*
    port forward rule-add name echamblardudp src-ip src-netmask protocol udp port-start 4672 dst-ip dst-netmask*

    I did try it but stopped before the last lines because I wasn't sure at all on how to replace echamblardtcp & udb by my needs :

    which are the use of guildftpd (aministration of the server) with the right other parameters.

    Would need help for to go further:rolleyes:
  4. mstombs

    mstombs Network Guru Member

    Sorry, I've never used the cli configuration myself - I exit back to the linux bash shell and work from there - but if you can get changes into the cli and save they should survive reboot.

    The Adsl2mue is a Ti AR7 router and can also run D-link 320T or Acorp LAN120/122 firmware etc - no risk to me as I have 2 working ones with serial console and working JTAG (shouldn't ever need!). There is an English cli guide here for a similar Ti chipset:-

    but not all options will apply to the 1-ethernet 1-usb 2MUE or its specific version of "core logic".
  5. stof7

    stof7 Addicted to LI Member

    thanx again for the pdf link & info,

    with a quick look at it, I've seen a firewall enable/disable in the Lan group...maybe I could try that...just thinking out loud...
  6. mstombs

    mstombs Network Guru Member

    I'm not too sure what firewall for a lan group means. The router firmware supports a no-nat mode, which is only of use if you have a range of static IP addresses from your ISP. If you are running as a nat router, sharing a single real IP address, and want to connect to your ftp server from an external internet connection you need to forward relevant ports or put the ftp server in the dmz (and handle firewall on the ftp server).
  7. stof7

    stof7 Addicted to LI Member

    All this is a bit too much complicated for me & my knowledge of computers in general,

    thanx anyway for bothering.
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