title: FTP in passive mode : EHOSTUNREACH - No route to host
body: <p>I have a FTP server which was running for about a month without any problem.</p>
  
  <p>Today, I cannot connect to it with filezilla, I get this message : </p>
  
  <blockquote>
    <p>The data connection could not be established: EHOSTUNREACH - No route to host</p>
  </blockquote>
  
  <p>I searched on Google/SO and found that it might be a TLS problem.
  However, I can connect to the FTP server using the console : </p>
  
  <pre><code>$ ftp
  ftp&gt; open mymachine.mycompany.com
  Connected to mymachine.mycompany.com
  220 Bienvenue sur le serveur FTP mymachine.mycompany.com.
  Name (mymachine.mycompany.com:adenoyelle): mylogin
  331 Please specify the password.
  Password:
  230 Login successful.
  Remote system type is UNIX.
  Using binary mode to transfer files.
  ftp&gt; ls
  200 PORT command successful. Consider using PASV.
  150 Here comes the directory listing.
  drwxr-xr-x    2 502      502         20480 Jun 05 11:51 Ga
  drwxr-xr-x    7 502      502          4096 Apr 21 15:41 Bu
  drwxr-xr-x    7 502      502          4096 Jun 03 16:26 Zo
  226 Directory send OK.
  ftp&gt; 
  </code></pre>
  
  <p>What can be the reason for that? </p>
  
  <p>EDIT : I found that enabling the 'Active' mode solves the problem in Filezilla but I need it to work in passive mode</p>
  
  <p>EDIT : Here is the full trace on Filezilla's side :</p>
  
  <pre><code>Status: Connecting to 10.196.***.***
  Status: Connection established, waiting for welcome message...
  Response:   220 Bienvenue sur le serveur FTP mymachine.mycompany.com.
  Command:    USER mylogin
  Response:   331 Please specify the password.
  Command:    PASS ******
  Response:   230 Login successful.
  Command:    SYST
  Response:   215 UNIX Type: L8
  Command:    FEAT
  Response:   211-Features:
  Response:    EPRT
  Response:    EPSV
  Response:    MDTM
  Response:    PASV
  Response:    REST STREAM
  Response:    SIZE
  Response:    TVFS
  Response:    UTF8
  Response:   211 End
  Command:    OPTS UTF8 ON
  Response:   200 Always in UTF8 mode.
  Status: Connected
  Status: Retrieving directory listing...
  Command:    PWD
  Response:   257 "/home/mylogin"
  Command:    TYPE I
  Response:   200 Switching to Binary mode.
  Command:    PASV
  Response:   227 Entering Passive Mode (10,196,165,224,189,253).
  Command:    LIST
  Error:  The data connection could not be established: EHOSTUNREACH - No route to host
  </code></pre>