Chapter 19. IPv4 Routing in the LAN
The CCNA Routing and Switching certification features two technology topics: routing and switching. This chapter focuses on routing, and one specific part of the routing space: routing between LAN subnets. This chapter focuses on configuration options on routers and Layer 3 switches that enable them to route packets between subnets that exist on VLANs.
This chapter breaks the discussion down into three major sections. The first section focuses on using routers to route between VLANs, with a feature many of you will remember from the ICND1 Cert Guide: routing over a VLAN trunk, also known as router-on-a-stick (ROAS). This option gives a router the means to connect to a switch with one Ethernet link, use trunking, ...
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