I'm total newbie at tcp/ip and I was experimenting with Wireshark.
What this mean:
1824 578.194204 xxx.xxx.xxx.xxx yyy.yyy.yyy.yyy UDP Source port: 17500 Destination port: 17500
In data I can see that my user pc name is sent (happily it's a generic name): does this mean someone is trying to hack my pc ?
Update I have another one which is port 56712 and yyy.yyy.yyy.yyy is the ip of someone with the same provider as me. Isn't this weird (OK I'm paranoïd :)) ?