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Forums › 2degrees (including Slingshot, Orcon, Flip, Stuff Fibre, MyRepublic, 2talk and Vocus) › Forwarding UDP ports on FritzBox

xpd

xpd

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#303527 16-Feb-2023 12:40
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Been running selfhosted servers etc for a number of years now, no issues really until now....  on 2D with static IP and the 2DM FritzBox.

 

Everything running fine except a new server I'm wanting to put online - it uses UDP only. So I have enabled forwarding the required ports etc but for some reason noone can connect. Been chatting with the devs and they cant see anything wrong on the server side of things via the logs. 

 

Anyone else run UDP only servers on a Fritz and encountered any issues like this ?

 

 




XPD / Gavin

 

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michaelmurfy
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  #3037554 16-Feb-2023 12:55
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Just remember - port forwarding does open up your network. I'm just remembering the time you had a server compromised.

 

But it is honestly as simple as opening it up via Permit Access just like how you forward TCP. If you have been migrated over to the Vocus network then you'll also have Port Filtering: https://www.2degrees.nz/help/broadband-help/troubleshooting/port-filtering

 

In your Fritz!Box logs you can see if you've been migrated by either the broadband PoP showing "SNAP-xx" (meaning you're on the old 2degrees network) else a Vocus broadband PoP:

 




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xpd

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  #3037621 16-Feb-2023 13:48
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LOL, that time I had issues was due to an update changing a SMTP relay setting on the hMail server back to default :D Youve got a good memory ;)

 

Yeah, used the Permit Access to open them up, but anytime anyone tries to connect, just gives server not responding message. Yet server responding fine on LAN.

 

If I have no joy, no biggie, will get someone else to host it (hopefully) :)  Might even fire up another PC just to test it with to ensure its not a Windows issue.

 

 




XPD / Gavin

 

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michaelmurfy
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  #3037622 16-Feb-2023 13:51
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You ensured it is opened up in Windows Firewall? :)

 

 

Make sure both are ticked for the service you're opening up.




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  #3037793 16-Feb-2023 16:47
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Either something weird going on with this router, or some update has changed things......

 

Figured I'd remove all permits/sharing, and start afresh. Did that, but now when I add a port, its only opening IPv6, and not IPv4.

 

Or at least thats what its showing.

 

Arghhh....

 

 




XPD / Gavin

 

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  #3037797 16-Feb-2023 16:53
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Oh ffs.... now whats it doing....  The desktop is my main PC. Its got nothing to do with the port forwarding.

 




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  #3037800 16-Feb-2023 17:03
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Change it to IPv4 only, and it maps to my desktop. Change to 4 and 6, 4 goes to desktop and 6 goes to server.

 

 




XPD / Gavin

 

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  #3037832 16-Feb-2023 18:34
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xpd:

 

Oh ffs.... now whats it doing....  The desktop is my main PC. Its got nothing to do with the port forwarding.

 

 

One would think that you are in the wrong section.




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  #3037833 16-Feb-2023 18:41
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xpd:

 

Change it to IPv4 only, and it maps to my desktop. Change to 4 and 6, 4 goes to desktop and 6 goes to server.

 

If you've got UPnP enabled there is a chance that it is mapped to the desktop already by that. As you know with IPv4 you can only map a port once on NAT.

 

Try disabling UPnP if you've got that turned on and give it another shot.




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  #3037921 16-Feb-2023 20:34
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Right, fixed the issue, back to my original problem :D

 

Issue was that for some reason, the Fritz was using my desktop name to do access rules, but after I went into the network settings and removed the desktop, it came right....... weird. 

 

 




XPD / Gavin

 

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  #3037996 17-Feb-2023 07:23
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All fixed. Looks like removing all devices from the Fritz network sorted it out - existing forwards were fine, but anything new was getting mapped to my desktop and not the server - why ? Who knows. :)

 

 




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