Initialisation of communication

1. Link-local addressing:
   Both devices automatically assign themselves an IP address in the range 169.254.x.x, as no DHCP server is available. This allows direct communication.
2. Avahi (mDNS) hostname resolution:
• The embedded device announces its host name c6c3.local via the local connection.
• The Windows PC can resolve c6c3.local to 169.254.1.1 using an mDNS client (e.g. Bonjour).
3. Result:
   The devices can communicate directly with each other without manual IP configuration, either via the IP address (169.254.1.1) or the host name (c6c3.local).