CCNA Discovery 2 - Chapter 5

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CCNA Discovery 2 - Chapter 5

  1. 1. Configuring Network Devices Working at a Small-to-Medium Business or ISP – Chapter 5Version 4.1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  2. 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. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  3. 3. Initial ISR Router Configuration ISR combines routing, LAN switching, security, voice, and WAN connectivity features © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  4. 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 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  5. 5. Initial ISR Router Configuration Tools and equipment required for setup: © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  6. 6. Initial ISR Router ConfigurationThree-stage bootup process: Power-on self test (POST) Locate and load Cisco IOS Locate startup configuration file or enter setup mode © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  7. 7. Initial ISR Router ConfigurationVerifying and troubleshooting bootup process: View output from the show version command Use dir flash: and boot flash: in ROMmon mode View boot system commands © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  8. 8. Initial ISR Router Configuration Out-of-band management for initial configuration In-band management over a network connection © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  9. 9. Initial ISR Router Configuration Command Line Interface (CLI): text-based program Security Device Manager (SDM): web-based GUI © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  10. 10. Using Cisco SDM Express and SDM Follow best practices for installing a new device to ensure correct functions © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  11. 11. Using Cisco SDM Express and SDMEight SDM Express configuration screens: Overview Basic configuration LAN IP address DHCP Internet (WAN) Firewall Security settings Summary © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  12. 12. Using Cisco SDM Express and SDM Use Basic NAT Wizard to configure dynamic NAT with PAT © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  13. 13. Configuring a Router Using IOS CLI CLI command modes: two levels of access © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  14. 14. Configuring a Router Using IOS CLI Configuration modes can alter the operation of the device © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14
  15. 15. Configuring a Router Using IOS CLIHelp features: Command completion Error indicators Command history Arrow and function keys © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15
  16. 16. Configuring a Router Using IOS CLI Show commands display configuration and operation information © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16
  17. 17. Configuring a Router Using IOS CLI Use Cisco IOS CLI to perform an initial router configuration © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17
  18. 18. Configuring a Router Using IOS CLI Configure serial and Ethernet interfaces on a router © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 18
  19. 19. Configuring a Router Using IOS CLI Configure a default route for the Cisco router © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 19
  20. 20. Configuring a Router Using IOS CLI Configure a Cisco router to function as a DHCP server © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20
  21. 21. Configuring a Router Using IOS CLI Configure static NAT on a Cisco router to enable Internet access for an internal server © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 21
  22. 22. Configuring a Router Using IOS CLI Back up and restore configuration files using a TFTP server © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 22
  23. 23. Configuring a Router Using IOS CLI Capture and save configuration file output from a terminal session © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 23
  24. 24. Connecting the CPE to the ISP Configuration checklists ensure that all configuration requirements are met © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 24
  25. 25. Connecting the CPE to the ISP Use inventory and configuration checklists and an installation plan to ensure successful installation © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 25
  26. 26. Connecting the CPE to the ISP Documentation includes diagrams, checklists, and activity logs © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 26
  27. 27. Connecting the CPE to the ISPTypes of customer connections over a WAN: Point-to-point Circuit-switched Packet-switched © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 27
  28. 28. Connecting the CPE to the ISP Bandwidth and cost influence WAN choices © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 28
  29. 29. Connecting the CPE to the ISP Clock rate and serial encapsulation are needed when configuring serial WAN connections © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 29
  30. 30. Initial Cisco 2960 Switch Configuration Fixed-configuration, standalone devices Configured using GUI or CLI © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 30
  31. 31. Initial Cisco 2960 Switch Configuration Check switch components Connect cables to the switch Power up the switch and observe POST © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 31
  32. 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 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 32
  33. 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 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 33
  34. 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 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 34
  35. 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. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 35
  36. 36. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 36

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