Table of Contents for
Packet Tracer Network Simulator

Version ebook / Retour

Cover image for bash Cookbook, 2nd Edition Packet Tracer Network Simulator by Jesin A Published by Packt Publishing, 2014
  1. Cover
  2. Table of Contents
  3. Packet Tracer Network Simulator
  4. Packet Tracer Network Simulator
  5. Credits
  6. About the Author
  7. About the Reviewers
  8. www.PacktPub.com
  9. Preface
  10. Who this book is for
  11. Conventions
  12. Reader feedback
  13. Customer support
  14. 1. Getting Started with Packet Tracer
  15. Installing Packet Tracer
  16. Interface overview
  17. Creating a simple topology
  18. Summary
  19. 2. Network Devices
  20. Customizing devices with modules
  21. Emulating WAN
  22. Accessing the CLI
  23. Summary
  24. 3. Generic IP End Devices
  25. Servers
  26. Other end devices
  27. Configuring end devices
  28. Summary
  29. 4. Creating a Network Topology
  30. Testing connectivity with PDUs
  31. Using the simulation mode
  32. Clustering a topology
  33. Summary
  34. 5. Navigating and Modifying the Physical Workspace
  35. Moving devices physically
  36. Managing cables and distances
  37. Customizing icons and backgrounds
  38. Summary
  39. 6. Configuring Routing with the CLI
  40. Dynamic routing protocols
  41. The Routing table
  42. Load sharing
  43. Summary
  44. 7. Border Gateway Protocol (BGP)
  45. BGP versus dynamic routing protocols
  46. Configuring BGP in Packet Tracer
  47. Summary
  48. 8. IPv6 on Packet Tracer
  49. IPv6 static and dynamic routing
  50. Using both IPv4 and IPv6
  51. Summary
  52. 9. Setting Up a Wireless Network
  53. Wireless networks and physical workspaces
  54. Summary
  55. 10. Configuring VLANs and Trunks
  56. InterVLAN routing with routers and layer 3 switches
  57. Switch-to-switch trunk links
  58. Analyzing broadcasts in the simulation mode
  59. Summary
  60. 11. Creating Packet Tracer Assessments
  61. The initial network
  62. The answer network
  63. Testing the activity
  64. Summary
  65. Index

Servers

Servers are an entirely different breed when compared to other end devices. They have various functionalities and also have space for two network interfaces. The modules available for servers are the same as PC modules, except that the servers do not have the PC-HOST-NM-1AM module.

Looking under the Config tab of a server, you can see that the following services are available. Let us look at what each of these offers.

HTTP

The HTTP service offers a web server that runs both HTTP and HTTPS protocols. A textbox below the HTTP section provides options to create and edit static HTML pages. These are displayed when this server is accessed through the web browser utility of other end devices. This service is on by default.

DHCP

The DHCP service can be used to assign IP addresses to routers. This section has options to create and edit DHCP pools of IP addresses. It has a default pool called serverPool, which cannot be removed or edited. This service is off by default.

TFTP

The TFTP service can be immensely useful when learning about backing up and restoring Cisco IOS images and configuration files. This section lists several IOS images from routers and switches available in Packet Tracer. If any file is copied from a network device to the TFTP server, that too will be displayed. A sample is available at Cisco Packet Tracer 6.0.1\saves\Server\TFTP\TFTP.pkt. This service is on by default.

DNS

The DNS service is for resolving domain names to IP addresses. The DNS service offers the following record types: A, CNAME, SOA, and NS. Though this interface looks simple and complete, multilevel DNS setups can be configured. A sample is available at Cisco Packet Tracer 6.0.1\saves\Server\DNS\Multilevel_DNS.pkt.

A DNS cache button allows you to view cached DNS requests and has a feature that clears this cache. This service is off by default.

SYSLOG

This protocol provides a centralized logging service. Setting the Syslog server's IP to point to the configured server's IP from a network device fills the table in the Config tab with all of the logging messages generated by the device. This service is on by default.

AAA

AAA stands for Authentication, Authorization, and Accounting. This service is used for centrally managing the credentials of all network devices. It supports the RADIUS and TACACS authentication protocols. The options in this section allow you to create users and configure the network credentials to be used. Several samples are available at Cisco Packet Tracer 6.0.1\saves\Server\AAA\. This service is off by default.

NTP

Network Time Protocol ensures that the clocks of all devices are synchronized properly. This section has a calendar to set the date and time. Optionally, NTP authentication can also be configured. Once the server has a proper time set, all of the network devices can be configured to synchronize their clocks from this server. This service is on by default.

EMAIL

This section incorporates SMTP service and POP3 service. A domain name can be set and users created so that users can communicate by using the EMAIL option under the Config tab of a PC or laptop.

Only one domain is allowed per server, and either SMTP or POP3 can be switched on or off as desired.

FTP

FTP has more features as compared to TFTP. Users can be created and permissions can be granted to each one of them. This section also lists files that have been uploaded. There is no GUI client for accessing the FTP server. But the command line under the Desktop tab provides the FTP command-line client. A sample is available at Cisco Packet Tracer 6.0.1\saves\Server\FTP\FTP.pkt.

Firewall/IPv6 Firewall

Because the server has two network interfaces now, the firewall feature has been introduced in PT Version 6. This section allows you to configure inbound rules that match source/destination IP addresses and local/remote port numbers. Based on the match, the connection can either be allowed or denied.