Port forwarding won't work with UDP
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gb_forumfizz
Posts: 7 ✭
Hi / Bonjour
I'm trying to create a local VPN server on my machine.
To do so, I want to open port 7674 for the server running my VPN (192.168.0.101).
You can see in the attached file my Fizz router configuration.
My VPN does not work. And when I use nmap to scan for the 7674 port, it sais UPD is closed.
```
nmap -sU -p 7674 192.168.0.1
Starting Nmap 7.94 ( https://nmap.org ) at 2024-01-31 16:54 Eastern Standard Time
Nmap scan report for 192.168.0.1
Host is up (0.0030s latency).
PORT STATE SERVICE
7674/udp closed imqtunnels
MAC Address: 92:AA:C3:31:EC:E1 (Unknown)
Nmap done: 1 IP address (1 host up) scanned in 0.35 seconds
```
Any idea on how to fix this?
I'm trying to create a local VPN server on my machine.
To do so, I want to open port 7674 for the server running my VPN (192.168.0.101).
You can see in the attached file my Fizz router configuration.
My VPN does not work. And when I use nmap to scan for the 7674 port, it sais UPD is closed.
```
nmap -sU -p 7674 192.168.0.1
Starting Nmap 7.94 ( https://nmap.org ) at 2024-01-31 16:54 Eastern Standard Time
Nmap scan report for 192.168.0.1
Host is up (0.0030s latency).
PORT STATE SERVICE
7674/udp closed imqtunnels
MAC Address: 92:AA:C3:31:EC:E1 (Unknown)
Nmap done: 1 IP address (1 host up) scanned in 0.35 seconds
```
Any idea on how to fix this?
1
Best Answer
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1. Port forwarding is used to "transfer" the traffic from your Public IP to your Private (internal) IP.
2. Your Firewall should allow this traffic.
Your results show that you are testing it by using the Private IP. In this case Port forwarding rule is not used and loos like local FW is blocking the port(s).
1
Answers
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That's a very hard question ! @NAD83MTM8 Do you any idea ? You are good in that kind of things
1 -
Sadly I don't have a lot of experience in setting up networks
0 -
My bad! I was thinking you knows cause you know Linux 🤷♀️
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It appears I faild to upload an image with my question.
Here's attempt #2
Here's also a screenshot from a online port forwarding tester "Link not allowed"
Btw, I'm using Microsoft Windows 11 Home.0 -
Thanks Patricia for your answer.
I'm on windows btw (I'm using a windows version of nmap)0 -
Thanks Patricia for your answer.
I'm on windows btw (I'm using a windows version of nmap)0 -
Have you tried unplugging your fizz device, wait 5 min, and repower it?0
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You are welcome 😊
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Hi Everybody.
It looks like my problem fixed itself?
I'm not sure what happened.
@Andrei_ref_R7VK1 you where right my usage of nmap was internal, not extenal.
That said, I did use an online port forwarding to check. without success.
Maybe, the configuration didn't have time to take effect?
In any case, thanks for your help.
I'm happy this is solved.0
This discussion has been closed.