I've tried another combinations like use "pasv_address" on the ftp server, pointing to the F5 public & private IP, but only works if I point to Public Ip Address of the F5 and remove the ftp profile from the VIP.Īre you using a single interface ? are you ftp setup residing on AWS ? Because my test lab includes a single interface on the F5 with a EIP(AWS) attached. I downloaded an Irule that i found in this forum, that preserve ephemeral ports and i modified it to sent (no matter what) the public IP of the F5 when pasv is requested ( keeping the ephemeral port as it is) but again "passive mode refused" ) Obviously can not be resolved by the remote source. If my FTP pool member is configured using its private IP, the client receives ( "227 Entering Passive Mode (private VIP ip, Ephemeral Port ") If my ftp pool member is configured with it Public IP, the error recieved after PASV is 421 Service not available, remote server has closed connection The issue start when a remote source (whitelisted to access) connects to the FTP using the F5 public ip, everything looks good until the remote source request PASV I've created an FTP monitor that retrieves a file on the ftp server, attach it to the ftp pool and its working ok. Vlan and Tunnel traffic: all VLANs and tunnels VIP config ( config not listed below has been kept as default) source address: any Standalone)(Active)(/Common)(tmos)# list ltm profile ftp ftp I duplicate your configs, just to prevent missconfigurations. Could someone give me a little of guidance here?įirst thanks for share this information with me. I've tried to implement FTP passive load balancing using official documentations like ( ), but no matter what combination or configuration is implemented on the F5 & the ftp server, if I have the ftp profile the message ("passive mode refused") is always received after request PASV and only works if I use this for internal passive ftp, meaning that I not configure a "pasv_address" on the ftp server, and the client that request the connection is in the same Lan than the F5 & ftp server, resolving everything internally.Īs a said, i've tried a lot of combinations and settings on the F5 and ftp servers, but nothing works. But I need to have this working with the FTP profile in order to implement extra security for FTP on the F5. This scenario is running perfectly without an FTP profile, just a tcp profile (all ports) and the option pasv_address on the ftp server pointing to the public IP address of the F5. So, clients should hit public IP of the F5 for passive ftp. The idea is balance passive ftp publically. I have an F5 Big-IP 16.0.1.1 running on AWS with a FTP server behind running vsftpd.
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