AZ-104 Exam Ep 15: IP Addressing

Introduction

This tutorial provides a comprehensive guide on IP addressing, highlighting key concepts and practical steps for creating public and private IP addresses. Understanding IP addressing is crucial for Azure administrators, especially for managing and configuring network resources effectively.

Step 1: Understanding IP Addressing

• Definition: An IP address is a unique identifier for a device on a network, allowing it to communicate with other devices.
• Types of IP Addresses:
  • Public IP Addresses: These are used to communicate over the internet and are assigned by an Internet Service Provider (ISP).
  • Private IP Addresses: Used within a local network, these addresses are not routable on the internet.

Step 2: Creating Public IP Addresses

1. Access Azure Portal: Log into your Azure account and navigate to the Azure Portal.
2. Select Public IP Addresses:
   • Go to the search bar and type “Public IP addresses.”
   • Click on the option that appears.
3. Add a New Public IP Address:
   • Click on the “+ Create” button.
   • Fill out the required fields:
     • Name: Provide a descriptive name for your IP address.
     • SKU: Choose between Basic or Standard, depending on your needs.
     • IP Version: Select either IPv4 or IPv6.
4. Review and Create:
   • After filling in the details, click on “Review + create.”
   • Verify the information and click “Create” to finalize the process.

Step 3: Understanding Public IP Addresses

• Dynamic vs. Static:
  • Dynamic Public IP: Assigned temporarily and can change over time.
  • Static Public IP: Remains constant and is reserved for your use.
• When to Use: Static IPs are ideal for servers hosting websites or applications that require consistent access.

Step 4: Creating Private IP Addresses

1. Navigate to Virtual Network: Within the Azure Portal, find and select the Virtual Network (VNet) you want to work with.
2. Add a Subnet:
   • Click on “Subnets” and then “+ Subnet.”
   • Provide a name and specify the IP address range using CIDR notation (e.g., 10.0.0.0/24).
3. Assign Private IP Addresses:
   • When creating virtual machines (VMs) within this VNet, you can assign them private IP addresses from the defined subnet.

Step 5: Best Practices for IP Addressing

• Plan Your Addressing Scheme: Create a clear plan for public and private IPs to avoid conflicts and ensure efficient routing.
• Document IP Assignments: Keep track of assigned IP addresses to manage resources effectively.
• Use CIDR Notation: Familiarize yourself with CIDR notation for defining IP address ranges accurately.

Conclusion

Understanding and managing IP addressing is essential for effective Azure administration. By following these steps to create public and private IP addresses and adhering to best practices, you can optimize network performance and resource management. For further learning, consider exploring advanced networking concepts or Azure's virtual networking features.