I read (though I haven't found confirmation from the Cisco site) that the best practice for advertising EIGRP networks is to really just advertise the interface on which that network is connected. So instead of figuring out the proper wildcard mask to use in advertising a network, just copy the IP address of the interface and give it s wildcard mask of '0.0.0.0'.
So the first step would be to perform a 'show ip interface brief', then enter the router EIGRP configuration mode. After which you enter your network statements for those interfaces you wish to advertise out.
Example: router EIGRP 100
network 192.168.16.2 0.0.0.0
network 18.104.22.168 0.0.0.0
This works great.
In the practice labs, I have use this configuration procedure for both EIGRP and OSPF and I cannot see the downside to doing it this way. I am wondering what is the drawback with using this procedure for either protocol. Thanks and Great work!