FRITZ!Box 6660 Webserver Port Blocked

[manav-mahan]

I have FRITZ!Box 6660 which is configured with port sharing on IPV6. The webserver (in.manavmahan.de) is mapped  with AAAA record to PC (2a02:908:1583:d3a0:e6b9:7aff:fe3c:7435)  in the home network. It can be accessed from any device in the home network (it means the device firewall allows the connection). The traceroute shows FRITZ!Box block the connections. Please let me know if there is setting in the router or VF blocks incoming connections.

[RobertP]

Vodafone does not block anything

seems you have a config problem eighter with port sharing setting on your fritzbox or firewall settings on your webserver

which webserver do you use and which firewall is installed on the server?

[manav-mahan]

Please see the screenshot of my router.

I am using Apache server on Linux. Its firewall is configured to allow port 22, 80, and 443.

sudo ufw status

Status: active

To                         Action      From

--                         ------      ----

80/tcp                     ALLOW       Anywhere                  

443/tcp                    ALLOW       Anywhere                  

OpenSSH                    ALLOW       Anywhere                  

80/tcp (v6)                ALLOW       Anywhere (v6)             

443/tcp (v6)               ALLOW       Anywhere (v6)             

OpenSSH (v6)               ALLOW       Anywhere (v6) 

[reneromann]

Check if the server is configured to use the IPv6 privacy extensions - in this case, the IPv6 from your system will change erratically very often and thus will not allow any external connections.

IPv6 privacy extensions need to be disabled in order to get IPv6 servers to function properly (as well as for the Firewall in die FritzBox as that one calculates the IPv6 based from the MAC address).

[RobertP]

interface ID from your screenshot is different from IPv6 AAAA record

as @reneromann already wrote this coud be caused by privacy extensions which needs to be disabled on your webserver