And you may also want to run nmap, as root, from your fedora system

nmap -sS -6 The-IPV6-address-here

and just to be sure of IPv4

nmap -sS The-IPV4-address-here




FWIW,

[root@meimei ~]#  nmap -sS -6 -p 2049 2001:b030:112f:2::53
Starting Nmap 7.80 ( https://nmap.org ) at 2021-06-23 14:51 CST
Nmap scan report for 2001:b030:112f:2::53
Host is up (0.00039s latency).

PORT     STATE    SERVICE
2049/tcp filtered nfs

Means the firewall is blocking the port

[root@meimei ~]#  nmap -sS -6 -p 2049 2001:b030:112f:2::53
Starting Nmap 7.80 ( https://nmap.org ) at 2021-06-23 14:47 CST
Nmap scan report for 2001:b030:112f:2::53
Host is up (0.00018s latency).

PORT     STATE  SERVICE
2049/tcp closed nfs

Means the firewall is not blocking the port but no service is listening on that 
port

[root@meimei ~]#  nmap -sS -6 -p 2049 2001:b030:112f:2::53
Starting Nmap 7.80 ( https://nmap.org ) at 2021-06-23 14:46 CST
Nmap scan report for 2001:b030:112f:2::53
Host is up (0.00013s latency).

PORT     STATE SERVICE
2049/tcp open  nfs

Means the firewall is not blocking the port and a service is listening on the 
port

--
Remind me to ignore comments which aren't germane to the thread.

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