Unable to connect FTP when IPv6 I use IPv6
short description
I can't connect my FTP client when I use IPv6. Filezilla or WinSCP returns a timeout. Everything works fine when I disable IPv6 in my Windows client or when I use the IP(v4).
environment
Server OS: Debian
Server OS version: Stretch
ISPConfig version: 3.1.11
log entries
No activities appears in /var/log/syslog