Default /etc/nftables.conf on bpir3 includes these lines (I assume for the repo FTP server 😉)
define server = 192.168.1.2
...
# allow ftp
ip daddr $server tcp dport {ftp-data,ftp} counter packets 0 accept comment "ftp in"
...
# Forward traffic from wan to a LAN server
iifname $wan tcp dport {ftp-data,ftp} dnat ip to $server comment "Port forwarding to ftp server"
Default
/etc/nftables.conf
on bpir3 includes these lines (I assume for the repo FTP server 😉)