Windows 10: some udp packets are directed to the vEthernet connections if they are not disabled

Background:I am playing a game with one of my friends through LAN connection. I have set up an openvpn server on my machine and let my friend connect to it so that we can in one local network and play the game.Recently, I discovered that if I am using my desktop, and if he creates a room in the game, I can always see the room. However, if I am using my laptop, I often cannot see his room. Half a month ago, each time we wanted to play the game, I have to reboot my laptop before I could see his room in the game. But recently, I cannot see his room no matter how many times I reboot my laptop.Then

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How to configure Windows Sandbox to allow receiving UDP packets?

Hello everyone,

My app running on the sandbox could open TCP connections to a server running on the host,

but the app could not receive UDP packets from the host.

I have put the app in the white list of the firewall but it did not help.

The IP of the sandbox is default (DHCP).

Ping to the host replies well.

How to configure the sandbox to allow the app receive UDP?

 

please a help about UDP packet

thank u very much for ur reply, it is helpful
so please by that

do u mean that udp usually send 1 packet in it's transfer?

also please, the security that i read is between the client and it's nearest router, so here please, what is the series of the handshaking that happen here?

i don't want to send using TCP only, and the packets that transfered through is of all types, but i have problem in the UDP behavior in transfering

thank u in advance
with regards
sarah

 

please a help about UDP packet

hello everybody,
i need ur help, i read in networking and some security on it, i have problem when i read that, it is:
i know that UDP is unrealiable , so i think that mean it has no 3-way hand shaking,
but when i read many papers, it said that UDP can be checked (by authantic method) in the first request packet, and if it not auth. the whole traffic is discard!!!!
please how is that??
doesn't the packets reach the destination out of order? so how can we recognize the first request packet from other packets?
and how to recognize the whole flow of that request?

thank u very much for any help and reply please i indeed need it
with regards
swa