The document discusses configuring network devices like routers and switches. It describes initially configuring an Integrated Services Router (ISR) using the Cisco Security Device Manager (SDM) or command line interface (CLI). The SDM uses a web-based graphical interface while the CLI is text-based. Configuration topics covered include interfaces, default routes, DHCP servers, and network address translation. The document also discusses connecting customer premises equipment to internet service providers using various connection types and documenting the installation process.

1. Configuring Network
Devices
Working at a Small-to-Medium Business or ISP –
Chapter 5
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2. Objectives
 Configure a router with an initial configuration.
 Use Cisco SDM to configure a Cisco ISR with LAN
connectivity, Internet connectivity and NAT.
 Configure a Cisco router for LAN connectivity, Internet
connectivity and NAT using the Cisco IOS CLI.
 Configure a WAN connection from customer premises
to an ISP.
 Describe, setup and configure a standalone LAN
switch.
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3. Initial ISR Router Configuration
 ISR combines routing, LAN switching, security,
voice, and WAN connectivity features
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4. Initial ISR Router Configuration
 Cisco IOS software modules are called images
 IP Base image: entry-level Cisco IOS
 Images are specific to models of devices
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5. Initial ISR Router Configuration
 Tools and equipment required for setup:
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6. Initial ISR Router Configuration
Three-stage bootup process:
 Power-on self test (POST)
 Locate and load Cisco IOS
 Locate startup configuration file or enter setup
mode
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7. Initial ISR Router Configuration
Verifying and troubleshooting bootup process:
 View output from the show version command
 Use dir flash: and boot flash: in ROMmon
mode
 View boot system commands
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8. Initial ISR Router Configuration
 Out-of-band management for initial configuration
 In-band management over a network connection
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9. Initial ISR Router Configuration
 Command Line Interface (CLI): text-based
program
 Security Device Manager (SDM): web-based GUI
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10. Using Cisco SDM Express and SDM
 Follow best practices for installing a new device
to ensure correct functions
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11. Using Cisco SDM Express and SDM
Eight SDM Express configuration screens:
 Overview
 Basic configuration
 LAN IP address
 DHCP
 Internet (WAN)
 Firewall
 Security settings
 Summary
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12. Using Cisco SDM Express and SDM
 Use Basic NAT Wizard to configure dynamic
NAT with PAT
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13. Configuring a Router Using IOS CLI
 CLI command modes: two levels of access
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14. Configuring a Router Using IOS CLI
 Configuration modes can alter the operation of
the device
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15. Configuring a Router Using IOS CLI
Help features:
 Command completion
 Error indicators
 Command history
 Arrow and function keys
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16. Configuring a Router Using IOS CLI
 Show commands display configuration and
operation information
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17. Configuring a Router Using IOS CLI
 Use Cisco IOS CLI to perform an initial router
configuration
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18. Configuring a Router Using IOS CLI
 Configure serial and Ethernet interfaces on a
router
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19. Configuring a Router Using IOS CLI
 Configure a default route for the Cisco router
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20. Configuring a Router Using IOS CLI
 Configure a Cisco router to function as a DHCP
server
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21. Configuring a Router Using IOS CLI
 Configure static NAT on a Cisco router to
enable Internet access for an internal server
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22. Configuring a Router Using IOS CLI
 Back up and restore configuration files using a
TFTP server
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23. Configuring a Router Using IOS CLI
 Capture and save configuration file output from
a terminal session
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24. Connecting the CPE to the ISP
 Configuration checklists ensure that all
configuration requirements are met
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25. Connecting the CPE to the ISP
 Use inventory and configuration checklists and
an installation plan to ensure successful
installation
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26. Connecting the CPE to the ISP
 Documentation includes diagrams, checklists,
and activity logs
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27. Connecting the CPE to the ISP
Types of customer connections over a WAN:
 Point-to-point
 Circuit-switched
 Packet-switched
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28. Connecting the CPE to the ISP
 Bandwidth and cost influence WAN choices
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29. Connecting the CPE to the ISP
 Clock rate and serial encapsulation are needed
when configuring serial WAN connections
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30. Initial Cisco 2960 Switch Configuration
 Fixed-configuration, standalone devices
 Configured using GUI or CLI
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31. Initial Cisco 2960 Switch Configuration
 Check switch components
 Connect cables to the switch
 Power up the switch and observe POST
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32. Initial Cisco 2960 Switch Configuration
 Switch settings can be configured using the
Cisco IOS CLI
 Assign an IP address to the default
management virtual local area network, VLAN1
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33. Initial Cisco 2960 Switch Configuration
 Connect the stand-alone LAN switch to the
router and verify connectivity
 Configure port security to prevent unauthorized
use
 Shut down unused ports
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34. Initial Cisco 2960 Switch Configuration
 Cisco Discovery Protocol (CDP) gathers
information about directly-connected Cisco
network devices
 Two Cisco devices directly connected on the
same local network are called neighbors
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35. Summary
 The Integrated Services Router (ISR) is a good choice
for small to medium businesses and ISP-managed
customers.
 ISRs can be initially configured using SDM or the router
IOS CLI.
 When using the CLI, “show” commands verify
configuration elements.
 An installation plan can minimize disruption to a
network when new devices are being added.
 Documentation is necessary, both when configuring
and when installing network devices.
 Switches are assigned IP addresses by configuring
them on the management interface, VLAN 1.
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