Cisco 800 Series Router Configuration for Internet Access Step-by-Step
Cisco 850 Series and Cisco 870 Series Access Routers Cabling and Setup Quick Start Guide - Cisco 850 Series and Cisco 870 Series Access Routers Cabling and Setup Quick Start Guide (English) [
Cisco 800 Series Routers Help You Prepare for CCNA Exam & CISCO IOS – Router Switch Blog