LogicMachine KNX IP Routing (UDP)

[fleeceable]

Weinzler ip routers, and some Zennio and LM5.

Problem is that its separated in two technical ip networks. 172.16.69.xx and 172.16.70.xx.
The LM5 is located on xx.70.xx range and can read fine from all lines.
Problem is i am not able to write to specially the 69.xx segment.
I dont see any problems on the multicast and udp packages.
Multicast TTL is set to 10 for testing.

If your computer is physically connected to 69.xx segment try to sniff with wireshark. Does LM (xx.70.xx) write packages come thru?
I have experiences with IT guys, they tell you all limitations are removed but still some rules apply.

If packages comes thru then there is problem with ip router I think.