You are troubleshooting a client’s network. The client is using the following IP network

126 | Lesson 5 Scenario 5-2: Troubleshooting TCPIP Results The ABC Company wants you to figure out what is happening on its network. The company complains that it cannot connect a particular computer to the 10.253.253.0 network, to the 10.253.253.1 router, or to any other host on that network. One of the company’s technicians managed to get the following results within two different command-line windows: Results 1: IPv4 Address . . . . . . . . . . . : 10.254.254.205 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 10.254.254.1 Results 2: Pinging 10.253.253.1 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Packets: Sent = 4, Received = 0, Lost = 4 100 loss, 1. What commands were issued? 2. What is the problem here? 3. How can this problem be resolved? Scenario 5-3: Documenting a Basic Wide Area Network A client wants you to design a basic WAN with two LANs that can communicate with each other. The client would like the following configuration: LAN A • 192.168.1.0 network • 255.255.255.0 subnet mask • A router with the following configurations:

a. LAN address: 192.168.1.250 b. WAN address: 18.52.197.1

LAN B • 192.168.2.0 network • 255.255.255.0 subnet mask • A router with the following configurations:

a. LAN address: 192.168.2.199 b. WAN address: 18.52.197.2

Create network documentation that shows the LANs, their central connecting device such as a switch, and the router. Then show the command syntax you would use in the command line to make the routed connections between the LANs. Scenario 5-4: Advanced Pinging Proseware, Inc., wants you to set up a baseline to a server. You decide to implement the ping command and its various options. Proseware wants you to do the following:

1. Set up daily ping tests to a server with the IP 10.254.254.1 that will consist of 1,000

ICMP echoes. Implementing TCPIP in the Command Line | 127 TCPIP Command Table TCPIP commands are a huge part of a network administrator’s life. The ability to use them quickly and efficiently depends on the knowledge of the user. Memorization of the com- mands, and especially the various command options, is imperative. Proper and smart use of the command prompt is also vital. Research the commands listed after the following table and create your own table that describes them and each of their options e.g., ping –t. In your table, include a column that describes why the command and its option would be used. Workplace Ready ✴ E XAMPLE S OLUTION Ping –t Pings a remote computer Used to determine long-term continuously. connectivity. Works well with cabling tests. Ipconfig all Shows in-depth information Can help find details such as the about a network adapter. MAC address, DNS server, and so on. FTP Ipconfig Nbtstat Net command Netsh Netstat Nslookup Pathping Ping Route Telnet Tracert Note that navigation in Windows can be slightly different in different versions. Once you are finished assembling your table, spend some time working with each of the commands on as many of the following operating systems that you can: -Windows 7 -Windows Vista -Windows XP -Windows Server 2008 or 2003

2. Set up daily ping tests to a server with the same IP that will consist of one hundred

1,500 byte ICMP packets.

3. Configure these so that they run every day and are output to a text file.