Slow FTP connection behind F5
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 !