In this hands-on course we will build a multi-network LAN in Packet-Tracer, with two non-contiguous sub-networks so we can learn one of the main challenges when using that kind of topology. Then we will configure EIGRP so we can route across each of our networks, followed by a simulation of an issue connected to auto-summarization. We will learn the differences between contiguous and non-contiguous sub-networks, and troubleshoot the issue from our simulation using the no auto-summary command; finishing by verifying and testing our solution.