Port forwarding won't work with UDP

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gb_forumfizz
gb_forumfizz Posts: 7
edited February 10 in Internet
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?

Best Answer

  • Andrei_ref_R7VK1
    Andrei_ref_R7VK1 Posts: 6,797 ✭✭
    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).

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