Sorry that was my Mikrotik Router. Unfortunately you have to deactivate neighbour discovery per interface.
I've do so now manually and traffic should have vanished.
Thanks for letting me know.
73 de Marc, LX1DUC
Quoting Don Moore ve3zda@gmail.com:
(Please trim inclusions from previous messages) _______________________________________________ Whoever is operating (if valid) 176.9.140.86 name = ampr-gw.fks-de.ham.lu please cease and desist sending data using the following encap line. 11:30:13.339166 IP 176.9.140.86 > 192.168.1.150: IP 0.0.0.0.5678 > 255.255.255.255.5678: UDP, length 115 (ipip-proto-4)
73, Don - ve3zda