Question

. Long on to a PC with the administrator account, or an account that has administrator privilege. Please take a note of your system information and location where you perform the lab. Open the command prompt. For Windows 10, type cmd in Cortona. For Windows XP. choose Start à Run, and type cmd in the Open field. For Windows 7, click on Start, enter cmd in "Search program and file, and choose "cmd.exe from search result. For Windows 8 press "Start key on your keyboard and type cmd (ignore the GUI menu on screen). For Mac OS, open Finder, select applications," choose "utilities, and double click Terminal. . At the command prompt, type ipconfig /? (use man ifconfig For Unix/Linux and Mac OS) and press Enter Observe the options available for ipconfig. Which options do you think would be most useful for an administrator? Which option would you use to obtain an IP configuration from a Dynamic Host Configuration Protocol (DHCP) server? Type ipconfig (use man ifconfig For Mac OS) and press Enter What is your IP address? What is your subnet mask? What is the purpose of an IP address mask? s. Type ipconfig /all (ifconfig -a For Mac OS) and press Enter Observe the new information shown on screen What is the MAC address of your computer? What is your DNS server address? (For Mac OS, ifconfig -a does not provide this information. How do you get such To access the Local Area Connection Properties dialog box in Windows XP, click on Start à Control Panel à Network and Internet Connections à Network Connections à Local Area Connection. For Windows 7/8, click on Start à Control Panel à Network and Internet à Network and Sharing Center à Change Adaptor Setting (on the left panel). For Mac OS 9.X and higher, click on the Apple Menu, select Control Panels, and then click TCP/IP For Windows XP, in the Local Area Connection Status window click Properties. For Windows 7, double click on Local Area Connection. For Windows 8, double click on Ethernet For Windows XP. select Internet Protocol (TCPIP) and click Properties. For Windows 7/8, select either Internet Protocol 4 TCP/IPv4) or Internet Protocol 6 (TCPPv6) and click Properties. . Record the IP address information shown in the IP address text box and compare it with the IP address you recorded at step 4. If you connect your computer through an ISP, such as Verizon or Optimum Online, you may see Obtain an IP address automatically s If IP address is shown in Properties window, change the last octet to 110 and click on OK. Click on OK or close the Local Area Connection windows. If it doesn't allow you to save, record the result and explain why. If you are able to save the change Repeat steps 2-4 to observe that your IP address has changed. Repeat steps 6-10 to change the last octet from 110 back to its original value you recorded in step 4 (or 9).

Answer 1

Below are the useful commands for admninistrator

ipconfig /all
ipconfig /release
ipconfig /renew
ipconfig /flushdns

below command will renew DHCP ip and leases

ipconfig /renew

what is your ip
****************

IPv4 Address. . . . . . . . . . . : 172.16.9.80(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 172.16.9.1

What is mac address
********************
Physical Address. . . . . . . . . : B8-2A-72-CB-2B-B1
DNS Servers . . . . . . . . . . . : 172.16.9.1
8.8.8.8

Administrator Command Prompt Microsoft Windows [Version 10..17134.648] (c) 2018 Microsoft Corporation. All rights reserved C:WINDOWS\system32>ipconfig /? USAGE ipconfig [/allcompartments] [//all /renew [adapter]I /release [adapter] | /renew6 [adapter]/release6 [adapter]I /flushdns| Idisplaydns /registerdnsI /showclassid adapter | /setclassid adapter [classid] | /showclassid6 adapter | /setclassid6 adapter [classid]] where adapter Connection name (wildcard charactersand ? allowed, see examples) Options: Display this help message Display full configuration information Release the IPv4 address for the specified adapter Release the IPv6 address for the specified adapter Renew the IPv4 address for the specified adapter Renew the IPv6 address for the specified adapter Purges the DNS Resolver cache Refreshes all DHCP leases and re-registers DNS names Display the contents of the DNS Resolver Cache Displays all the dhcp class IDs allowed for adapter. Modifies the dhcp class id Displays all the IPv6 DHCP class IDs allowed for adapter Modifies the IPv6 DHCP class id /all /release /release6 /renew6 /flushdns /registerdns /displaydns /showclassid /setclassid /showclassid6 /setclassid6 The default is to display only the IP address, subnet mask and default gateway for each adapter bound to TCP/IP For Release and Renew, if no adapter name is specified, then the IP address leases for all adapters bound to TCP/IP will be released or renewed For Setclassid and Setclassid6, if no ClassId is specified, then the ClassId is removed Examples 5:20 PM ^^ !]q, ENG 05/04/2019 U: 8.6 K

Administrator: Command Prompt Nireless LAN adapter Local Area Connection 2: Media State Media disconnected Connection-specific DNS Suffix .: Description ..:Microsoft Wi-Fi Direct Virtual Adapter DHCP Enabled. No Autoconfiguration Enabled . .. . : Ye:s Nireless LAN adapter Local Area Connection 15 Media State Media disconnected Connection-specific DNS Suffix . : Description . .. : Microsoft Hosted Network Virtual Adapter DHCP Enabled. No Autoconfiguration Enabled . .. . : Ye:s Ethernet adapter Ethernet: Connection-specific DNS Suffix . : Description . : Realtek PCIe FE Family Controller DHCP Enabled. No Autoconfiguration Enabled . . . . : Ye:s Link-local IPv6 Address . . : fe80: :e4d9 :d787:9322:7ef4x16 (Preferred) IPv4 Address. . . : 172.16.9.80 (Preferred) Subnet Mask ....255.255.0.e Default Gateway .172.16.9.1 8.8.8.8 . : Enabled NetBIOS over Tcpip. . Ethernet adapter Ethernet 2: Media State Media disconnected Connection-specific DNS Suffix . : Description.... . . : Kaspersky Security Data Escort Adapter DHCP Enabled. ...: Yes Autoconfiguration Enabled . .. . : Ye:s Wireless LAN adapter Wi-Fi: 5:24 PM ^^ !]q, ENG 05/04/2019

RAN: 53%CPU: 3 % Troubleshoot problems Open Network & Internet settings 05/04/2019

Settings Home Status Private network Find a setting You're connected to the Internet If you have a limited data plan, you can make this network a metered connection or change other properties. Change connection properties Network & Internet Status Wi-Fi Show available networks Ethernet Change your network settings Dial-up Change adapter options View network adapters and change connection settings Sharing options For the networks you connect to, decide what you want to share. Airplane mode Mobile hotspot Data usage Proxy Network troubleshooter Diagnose andfix network problems View your network properties Windows Firewall Network and Sharing Center Network reset 5:30 PM )ENG05/04/2019

Network and Sharing Center 포 > Control Panel > All Control Panel Items Network and Sharing Center vSearch Control Panel View your basic network information and set up connections View your active networks Control Panel Home Change adapetings Change advanced sharing settings Network 2 Private network Access ty ConnectionsEthemet Internet Change your networking settings Set up a new connection or network Set up a broadband, dial-up, or VPN connection; or set up a router or access point. Diagnose and repair network problems, or get troubleshooting information. See also Infrared Intemet Options Windows Defender Firewall 5:30 PM 05/04/2019 U: 1.2 K

Network and Sharing Center 포 > Control Panel > All Control Panel Items Network and Sharing Center vSearch Control Panel View your basic network information and set up connections Control Panel Home View your active networks Change adapetings Change advanced sharing settings Network 2 Private network Access type Internet Ethernet Status Change your networking settings Set up a new connection or network Set up a broadband, dial-up, or VPN c Media State: Duration: Speed: No network access Enabled 05:09:47 100.0 Mbps Diagnose and repair network problems, or Activity Sent- Received Bytes: 51,952,054 863,851,991 Close See also Infrared Intenet Options Windows Defender Firewall 5:30 PM 05/04/2019 :172

Network and Sharing Center 포 > Control Panel > All Control Panel Items Network and Sharing Center vSearch Control Panel View your basic network information and set up connections View your active networks Control Panel Home Change adapetings Change advanced sharing settings Network 2 Private network Access type Internet Ethernet Properties Networking Shang Connect using Change your networking settings Set up a new connection or network Set up a broadband, dial-up, or VPN conne C Realtek PCle FE Famly Controler Diagnose and repair network problems, or This connection uses the following items: №cap Packet Driver (NPCAP) Npcap Packet Driver (NPF) (W-F) Npcap Packet Driver (NPCAP) (Wi-Fi) Intemet Protocol Version 4 (TCP/MPv4) Microsoft LLDP Protocol Dive nstall Uninstal Desciption Alows your computerto access resources on a Mcrosoft network OK Cancel See also Infrared Intenet Options Windows Defender Firewall 5:30 PM ^^ !]q, ENG 05/04/2019 U: 3.5 K

Network and Sharing Center 포 > Control Panel > All Control Panel Items Network and Sharing Center vSearch Control Panel View your basic network information and set up connections Control Panel Home View your active networks Change adapetings Change advanced sharing settings Network 2 Private network Access type Internet Ethernet Properties Networking Shang Connect using Change your networking settings Set up a new connection or network Set up a broadband, dial-up, or VPN conne C Realtek PCle FE Famly Controler Diagnose and repair network problems, or This connection uses the following items: №cap Packet Driver (NPCAP) Npcap Packet Driver (NPF) (W-F) Npcap Packet Driver (NPCAP) (Wi-Fi) 모 OS Packet Scheduler ntemet Protocol Version 4 (TCP 1Pv4 Microsoft Network Adapter Multiplexor Protocol Microsoft LLDP Protocol Driver nstall Propertias Desciption Tranemisaion Control Protocol/ntemet Protocol. The defaut wide area network protocol that provides communicabtion across diverse interconnected networks OK Cancel See also Infrared Intenet Options Windows Defender Firewall 5:30 PM ^^ !]q, ENG 05/04/2019

Network and Sharing Center 포 > Control Panel > All Control Panel Items Network and Sharing Center vSearch Control Panel View your basic network information and set up connections Control Panel Home View your active networks Change adapetings Change advanced sharing settings Network 2 Private network Access type Internet Ethernet Properties Change your networking settings Networking Shang Set up a new connection or network Set up a broadband, dial-up, or VPN conne Internet Protocol Version 4 (TCP/MPv4) Properties General Diagnose and repair network problems, or You can get IP settings assigned automatcally if your network supports this capabiity. Otherwise, you need to ask your network administrator for the appropriate IP settings. OCbtain an IP address automaticaly IP address: Subnet mask: Default gateway: Obtain DNS server address automatically 172 16.9 80 255.255.0- 72 16.91 Use the folowing DNS server addresses: Preferred DNS server: Alteate DNS server 172 16.9. 1 8 .8.8.8 See also Infrared Intenet Options Windows Defender Firewall Validate settings upon exit OK Cancel 5:30 PM 05/04/2019

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