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Manu_240242's avatar
Manu_240242
Icon for Nimbostratus rankNimbostratus
Sep 21, 2017

FTPS ltm configuration??

We want to implement FTP services through ltm in our environment bypassing ssl offloading at F5 level and doing offloading at server level but we are getting issue with data channel traffic, while us...
application delivery
LTM
Manu_240242's avatar
Manu_240242
Icon for Nimbostratus rankNimbostratus
Sep 21, 2017

We are getting below mentioned error:

 

TYPE A 200 Type set to A. PASV 227 Entering Passive Mode (172,19,100,186,199,91). LIST -a Connecting to 172.19.100.186:51035 ... 150 Opening ASCII mode data connection. 425 Cannot open data connection. 3 Could not retrieve directory listing Got reply 4 to the command 2 LIST with -a failed, will try pure LIST Retrieving directory listing... TYPE A 200 Type set to A. PASV 227 Entering Passive Mode (172,19,100,186,199,92). LIST Connecting to 172.19.100.186:51036 ... 150 Opening ASCII mode data connection. 425 Cannot open data connection. Could not retrieve directory listing Got reply 4 to the command 2 (ECommand) Error listing directory '/'. Could not retrieve directory listing Cannot open data connection.

 

  • Lee_Sutcliffe's avatar
    Lee_Sutcliffe
    Icon for Nacreous rankNacreous
    Sep 22, 2017

    Looks like an issue with your data channel.

     

    Are you receiving this from the FTP client? Do you have an FTP profile on the virtual server?

     

    Also, are you allowing TCP/51036 through your network, i.e. do you have any firewalls that may be blocking the flow?

     

  • Manu_240242's avatar
    Manu_240242
    Icon for Nimbostratus rankNimbostratus
    Sep 22, 2017

    Yes we are receiving the error on FTP server also we are not using ftp profile.Now we have used FastL4 profile to run SFTPS and it's working now. Thanks for your comments.