Configuring Network Addressing and Internet Connections

Key Concepts

• Understand IPv4 and IPv6 addressing schemes and differences
• Configure static and dynamic (DHCP) IP addressing
• Understand subnetting basics and subnet masks
• Explain the function of DNS and how it resolves names to IPs
• Describe NAT and PAT for IP address translation
• Understand Internet connection types (DSL, cable, fiber, satellite, cellular)
• Configure wireless network security protocols (WEP, WPA, WPA2, WPA3)

Homelab

1. Open Command Prompt (Window) or Terminal (Mac/Linux)
2. Run the following command:
   • Windows: ipconfig /all
   • Mac/Linux: ifconfig or ip a
3. Identify the following:
   • IPv4 Address
   • Subnet Mask
   • Default Gateway
   • DNS Server
4. Take a screenshot and label each part.

Alternate Lab

In Windows:

1. Go to Network and Sharing Center → Change adapter settings
2. Right click your network adapter → Properties → IPv4
3. Select “Use the following IP address” and enter:
   • IP: 192.168.1.100
   • Subnet: 255.255.255.0
   • Gateway: 192.168.1.1
   • DNS: 8.8.8.8
4. Apply settings and test with:
   • ping google.com
   • ping 8.8.8.8
5. Revert to DHCP and observe the IP change

Alternate Lab 2

1. Oppen command Prompt
2. Use nslookup google.com
3. Observe the IP address returned
4. try other domains like amazon.com,cnn.com
5. Change your DNS to Cloudflare (1.1.1.1) or Google (8.8.8.8) and observe differences

Lab Journal

• What did you observe?
• What did you learn?
• What questions do you still have?