I enter the following command to configure eigrp using a wildcard mask, and I get the output "invalid input detected at" under the first character of the wildcard mask. This same command works on all other routers in the network. The command seems correct? Why this router?
R2(config)#router eigrp 100
R2(config-router)#network 220.127.116.11 0.0.0.255
% Invalid input detected at '^' marker.
Free Guide: Managing storage for virtual environments
Complete a brief survey to get a complimentary 70-page whitepaper featuring the best methods and solutions for your virtual environment, as well as hypervisor-specific management advice from TechTarget experts. Don’t miss out on this exclusive content!