Thema "FRITZ!Box 6660 Webserver Port Blocked" in Geräte

FRITZ!Box 6660 Webserver Port Blocked

manav-mahan — Wed, 05 Jul 2023 17:59:55 GMT

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.

Betreff: FRITZ!Box 6660 Webserver Port Blocked

RobertP — Thu, 06 Jul 2023 09:15:19 GMT

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?

Betreff: FRITZ!Box 6660 Webserver Port Blocked

manav-mahan — Thu, 06 Jul 2023 12:51:43 GMT

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)

Betreff: FRITZ!Box 6660 Webserver Port Blocked

reneromann — Thu, 06 Jul 2023 12:54:47 GMT

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).

Betreff: FRITZ!Box 6660 Webserver Port Blocked

RobertP — Thu, 06 Jul 2023 13:19:48 GMT

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