This chapter went into great length to explain the UNIX routing architecture with regard to the FIB and route caches, the way they are populated with entries, and their similarities and differences compared to the Cisco IOS architecture. This is important to understand how the view changes when dynamic routing protocols take over control in the following chapters. Therefore, this chapter elaborated on the representation of connected and static routes, issues such as metric and blackhole routes, and configuration via the Linux ip route and platform-independent route utilities. Special setups such as floating static routes, ECMP, and TEQL were discussed and demonstrated in a lab scenario, concluding with a short preview of how you can use static routes from within routing protocol engines.