Hi Michael, thank you for your help. And sorry for my delay. Finally, I did it without creating routing table. I connected to PLC1 directly with toolbus and to PLC2 via PLC1. So It was not necessary to do a routing table. But now I have another problem. And I think I will have to do routing table. You can see at the attached image. I want to connect from PLC1 to PLC2 through MPLC. PLC1 and PLC2 are in different networks. Dear Michael or other kindly people, could you help me with creating routing table? Another questio is, I will have to transfer routing table also to MPLC? I´m affraid I´ll do something wrong with MPLC. My boss would kill me:). Thank you very much. And happy new year :) Lubomir