I want to tie up some loose ends on threads I opened, to thank you (Alan!) for your help, and to ensure that the archives include solutions and not only problems. ;-)
I was routing from the LAN to VM via a vswitch, to an IP address of a host connected via CTC to the VM TCPIP. The problem was the obvious one: what I sent was not arriving. Solution: As they write on APARs: 'probable user error'. Yes, I defined my VSWITCH as PRIROUTER so that the transmissions intended for the host on the internal CTC net would be accepted into VM, but..... I did not define the virtual NIC that coupled to the vswitch as PRIROUTER. I misunderstood PRIROUTER as being a 'hardware' function, so that the OSA would not discard packets from the network which are intended for IP addesses not homed here. Now I see that it also affects the 'virtual OSA' in the NIC, in the same way. So... after fixing that I was able to communicate between the LAN and the UNDR system. Thank you! Shimon
