Small and remote sites usually connect to the corporate network via a small router. The LAN service is provided by a small LAN switch. The router filters broadcast to the WAN circuit and forward packets that require services from the corporate network. You can place a server at the small or remote site to provide DHCP and other local applications such as a backup domain controller and DNS; if not, you must configure the router to forward DHCP broadcasts and other types of services. As the site grows, you will need the structure provided by the Enterprise Composite Network model. Figure 3-12 shows a typical architecture of a remote LAN.
Figure 3-12 Remote Office LAN
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