[BUG]: Client Random Port Issue in Notify-Subscribe Example using UDP

[ayaha55]

vSomeip Version

v3.4.10 | the latest version

Boost Version

1.74

Environment

Ubuntu 22.04 LTS

Describe the bug

When running the notify-subscribe example in the vsomeip repository with UDP, the server uses the correct port as configured in the JSON configuration file, but the client randomly assigns a port on each execution. In addition, during each SOME/IP SD (Service Discovery) subscription, the client’s IPv4 endpoint in the option changes the port number, which leads to inconsistencies.

I have tried the port range solution mentioned in Issue #452, but it didn’t work in my case.
The client’s UDP port in Wireshark fluctuates between port ranges, such as from [3xxxx] to [5xxxx], which is not the expected behavior.

Reproduction Steps

No response

Expected behaviour

The client should use a fixed UDP port for communication, as specified in the configuration file, and not randomly change the port or fluctuate within a range.

Logs and Screenshots

No response