Errors encountered while processing 06-unnumbered.yml
IncorrectValue in interfaces: Invalid unnumbered IPv4 interface ether2 (dut -> x1) on node dut 
... Device routeros7 (node dut) does not support unnumbered IPv4 interfaces
IncorrectValue in interfaces: Invalid unnumbered IPv4 interface ether3 (dut -> x2) on node dut 
Fatal error in netlab: Cannot proceed beyond this point due to errors, exiting