Forum Discussion

Network_center1's avatar
Icon for Nimbostratus rankNimbostratus
Nov 04, 2019

Slow FTP connection behind F5

Hello there,


I have an issue I don't understand.


Some customers connect on one of our FTP server behind the F5.

Public IP of the virtual server on port 21 > default pool > one server port 21

No irule nothing.


It lasts nearly 30 secondes between the login and the listing of the FTP content.


But if I try to connect on the FTP server with it's private IP it's instant.

I am not on the same vlan as the FTP so it goes through several switchs and firewalls in private and public.


Any idea? Thank you !