So when I learned about OSPF during my internship, I learned that it was best practice to configure it on a specific interface using 0.0.0.0 as wildcard bits, rather than configuring it on a whole network. However when I got back to class, the teacher said that we should calculate and use the reverse mask (example if your netwok is a /30, your wildcard bits would be 0.0.0.3) so I'm confused...what is the best practice when configuring routing protocols that use these wildcard bits??
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