All Questions
193
questions
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16
views
receive UDP packages on localhost (java.net.BindException: Address already in use) [duplicate]
I have an application that runs an udp server on a certain port to communicate with the app.
When I try to write another java application that receives what the server is sending, I get the error &...
0
votes
0
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86
views
What layer 4 protocols have port numbers?
What layer 4 protocols (specifically, the ones that have a protocol number registered with IANA) use port numbers?
I know TCP, UDP, SCTP (Stream Control Transmission Protocol), and DCCP (Datagram ...
- 39
0
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0
answers
154
views
Decoding the data received from gigabit ethernet port with Python
I want to connect to a detector and receive image data. After working with Wireshark software, I realized that I should use protocol UDP. I wrote the following code in Python and got the data.
The ...
- 21
0
votes
1
answer
117
views
Connection to backend cannot be established when firewall is up. Need help setting up Nginx to allow UDP
I'm building a multiplayer game using Geckos.io which runs on UDP.
I have deployed the server on a Ubuntu droplet from digital ocean.
I have setup and configured nginx, added TLS using certbot. ...
- 1
0
votes
0
answers
73
views
Why 10049 error occurs in udp communication even though ip and port are entered correctly
DWORD WINAPI socketRead(void *lpVoid)
{
while (true)
{
// UDP socket
WSADATA data_s;
WORD version = MAKEWORD(2, 2);
// socket start
int wsok = WSAStartup(version, &data_s);
...
- 9
1
vote
2
answers
234
views
Can't connect from Ubuntu server to Windows Desktop via UDP even with firewall turned off
I have been trying to get a udp client/server working so I can implement it in an Unreal Engine 5 project, but while I have no trouble connecting from my windows machine to my ubuntu server I cannot ...
- 131
0
votes
2
answers
475
views
Is there any difference within the port Numbers that we use in Socket Programming?
I am still a beginner in Socket Programming, and I have come across several TCP/UDP Protocol based codes in which different portNumbers are used, but they all seem so random, also, I have set up ...
user19861493
2
votes
0
answers
3k
views
SOCAT - Forwarding TCP packets to UDP
I have an application that sends simple data over TCP (simple, no auth) and another application that must receive it. The only allowed connection between the two is UDP.
On the receiving side, I have ...
1
vote
0
answers
179
views
Kubernetes Services does not translate incoming UDP packets from the service port to the targetPort
I'm building a microk8s cluster starting with 3 system nodes, meant to run several applications in containers. Application A in Container A ingests UDP packets through Service A using a NodePort ...
- 10.3k
0
votes
0
answers
193
views
How do I programmatically open a UDP port in the Windows Firewall?
Is it possible to programmatically open UDP ports in the Windows Firewall in C/C++? I googled but did not find a solution. Only solutions found go through the Firewall's graphical interface. I need to ...
- 63
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227
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How to use python socket to send data from a driving simulator PC to a laptop?
Goal
A driving simulator PC generates real-time data (1/60th of a second) that I can get via socket. I connected a laptop to this PC via ethernet cable. Now, I want to send the data from PC to the ...
- 5,981
0
votes
2
answers
1k
views
UDP socket still bound to previous port – how to reuse it?
I have an audio streaming application that uses boost UDP sockets bound to port 50050. I currently have a problem when the application is shut down while streaming. When restarting the app it cannot ...
1
vote
1
answer
2k
views
How to check if UDP port is open? (python)
I am trying to write a port scanner with python and there is an issue with UDP ports. Google says that I have to send some request and either recieve TimeoutError, meaning server got the message via ...
- 41
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83
views
Can the sending address:port be set from a packet received before sending (relaying) UDP?
Similar to How to set source address when sending using and UDP socket, but not identical:
I'm writing an experimental UDP packet relay.
The code works so far, but the problem is that the relayed ...
- 4,069
0
votes
0
answers
510
views
Bidirectional communication between two applications on the same port and host
I have two applications on the same host and I try to create a bidirectional communication between them but on the same port.
Port: 8080
| | <----------------...
- 2,178