Port Forwarding

[Thilo29]

Hello,

I am trying to port forward so that I can host a Minecraft server. I had managed to get it working last year but then in the summer 2021 it just stopped ....

I haven't changed any settings and checked all the port forwarding within the router and using port checking sites, the ports remain closed.

Can anyone help? I do believe that the problem is coming from Vodafone.

Many thanks,

Thilo

Edit: @Thilo29 Thread moved from Community- to Internet-Geräte-Board.

[niros]

Hello Thilo29, do you speak german?

Please give more informations (DSL, cable, DS-lite, Dual-Stack, type of router, kind of your contract with Vodafone, ...).

[Thilo29]

Leider nicht so gut, Google Translate hilft dabei!

Router type: Vodafone TG3442DE

Kind of Contract: Red Internet Cable

Wie bekomme ich die DSL, Kabel, DS-lite, Dual-Stack Informationen für Sie? Was brauchen Sie noch?

Thilo.

[niros]

@Thilo29 : Let your IP-Address(es) detect by this site :

https://www.test-ipv6.com/

Please be patient for a moment until you see the results like this:

Ihre IPv4 Internet-Adresse ist höchstwahrscheinlich 123.456.789.123

Ihre IPv6 Internet-Adresse ist höchstwahrscheinlich abcd:efgh:ijkl:mnop:qrst:uvwx:yzab:cdef

Ihr Internet Service Provider (ISP) scheint zu sein: VODANET International IP-Backbone of Vodafone

Sie haben eine funktionierende IPv6-Anbindung. Dieser Tab listet weitere Seiten auf, die über IPv6 erreichbar sind:

Ihr DNS Server (wahrscheinlich von Ihrem ISP betrieben) scheint über IPv6-Internetzugriff zu verfügen.

Please copy the results in your answer.

niros

[niros]

@Thilo29: I forgot: don't copy your real IP-Adresses. Use somethink like I've done :-))

niros

[Thilo29]

@niros  These are the results from the site, I've blanked out my public ip 😉

Your IPv4 address on the public Internet appears to be XXX.XXX.XXX.XXX

Your Internet Service Provider (ISP) appears to be VODANET International IP-Backbone of Vodafone

No IPv6 address detected [more info]

You appear to be able to browse the IPv4 Internet only. You will not be able to reach IPv6-only sites.

To ensure the best Internet performance and connectivity, ask your ISP about native IPv6. [more info]

Your DNS server (possibly run by your ISP) appears to have IPv6 Internet access.

Thanks for the help!

[niros]

@Thilo29: okay, you have an IPv4 connection to the internet. So it is correct to use portforwarding.

Was there any important incident (like get a new cable-router or lightning strikes in the neigborhood or so on) in summer 2021, that could stop your portforwarding?

Is your minecraft-server reachable through the wanted port from another device (PC, laptop, ...) in your lan?

niros

[Thilo29]

@niros Nothing changed locally as far as I'm aware of.

With my PC as host, I have tried using my laptop as a second source  to log in and it works too.

[niros]

@Thilo29: Please do another test only for your minecraft port on this site :

https://www.heise.de/security/dienste/Netzwerkcheck-2114.html

If the port is "filtered", the port is not forwarded!

If the port is "closed" means, that the port is forwarded but minecraft does not answer on it.

niros