In the network shown in the figure, the IP addresses planned for the interconnection interfaces of R1 and R2 have been marked in the figure, but R1 and R2 cannot be Pine connected. Therefore, the…

In the network shown in the figure, the IP addresses planned for the interconnection interfaces of R1 and R2 have been marked in the figure, but R1 and R2 cannot be Pine connected. Therefore, the network engineer checked the configuration of the R1 and R2 interfaces and judged based on the configuration information that the wrong mask configuration of the R2 interface was the cause of the fault.