openHAB 2 + KNX Binding 1.9 + ROUTER Mode

[Dim (Angelos)]

@kip

As soon as I cancel the tcpdump command, I no longer get knx messages …

sounds very similar to:

[Solved] KNX Binding ignores state responses for KNX BUS Events

Hmm… One quick thought that I have (I may be wrong) is that tcpdump is putting your ethernet interface in promiscuous mode and as a result, your raspy / OpenHab can read the packets originating from the KNXnet/IP Router (multicast) Without tcpdump running, check the output of netstat -i see if the flags include "M" if not, enable multicast: ip link set eth0 multicast on or set the ethernet interface to always on promiscuous mode: ip link set eth0 promisc on (check for the “P” flag in netst…

maybe try another ethernet interface?