Difference Between Static IP and Dynamic IP: Static vs Dynamic IP Address Explained

Static IP and Dynamic IP are two methods of assigning IP addresses to devices on a network.

A static IP address remains assigned to a device until an administrator or network configuration changes it, while a dynamic IP address is assigned automatically, commonly through DHCP, and may change over time.

The choice between static and dynamic addressing depends on the purpose of the device, network design, administration requirements and service-provider configuration.

Table of Contents

• What is an IP Address?
• What is a Static IP Address?
• How Does Static IP Work?
• What is a Dynamic IP Address?
• How Does Dynamic IP Work?
• Role of DHCP
• Static IP vs Dynamic IP
• Examples
• Security Difference
• Static and Dynamic Public IPs
• Static and Dynamic Private IPs
• Advantages and Disadvantages
• When to Use Each
• Important Exam Points
• Frequently Asked Questions
• Conclusion

Difference Between Public IP and Private IP: Public vs Private IP Address Explained

Public IP and private IP addresses are two important concepts in computer networking. A public IP address is used for communication across public networks such as the Internet, while a private IP address is used within private networks such as home, school and office networks.

Every device that communicates using the Internet Protocol needs IP addressing appropriate to its network environment. However, not every device inside a local network needs a globally unique Internet-routable IPv4 address.

This is where the distinction between public IP address and private IP address becomes important.

Private IPv4 addresses are reserved for use inside private networks and are not directly routed across the public Internet. Public IP addresses are globally used for Internet communication and must be allocated through appropriate Internet addressing mechanisms.

In this article, we will learn the difference between public IP and private IP, private IPv4 ranges, NAT, Internet connectivity, security considerations, examples, advantages, limitations and a detailed parameter-based comparison.

Difference-between-router-and-gateway

A router and a gateway are both important concepts in computer networking, but they are not exactly the same thing. A router primarily forwards packets between different IP networks, while the term gateway generally refers to a device or node that provides a path from one network or protocol environment to another. In many ordinary IP networks, a router can also function as the default gateway.

When learning computer networks, students often see the terms router and gateway used together. This can create confusion because a router can act as a gateway, while the word gateway has a broader meaning than router.

A router makes forwarding decisions based on network-layer information and routing information. A gateway can refer to the point through which traffic leaves one network for another network, and in broader networking contexts it can also refer to a system that connects different protocols or environments.

In this article, we will understand the difference between router and gateway, their functions, working, examples, default gateway concept, OSI layers, routing, protocols, advantages, limitations and a detailed parameter-based comparison.

Difference Between DNS and DHCP: DNS vs DHCP Explained

DNS and DHCP are two important services used in computer networks. DNS helps devices find websites and network services by translating names into IP addresses, while DHCP automatically provides devices with IP configuration such as an IP address, subnet mask, default gateway and DNS server information.

When a computer, smartphone or other device connects to a network, several networking services work together in the background. Two of the most important services are DNS (Domain Name System) and DHCP (Dynamic Host Configuration Protocol).

Although DNS and DHCP are often used together, they perform completely different jobs. DNS is mainly responsible for name resolution, whereas DHCP is responsible for automatic network configuration.

In this article, we will learn the difference between DNS and DHCP, how DNS works, how DHCP works, their ports, protocols, messages, examples, advantages, limitations and how they work together in a real network.

Table of Contents

1. What is DNS?
2. What is DHCP?
3. How Does DNS Work?
4. How Does DHCP Work?
5. What is DHCP DORA?
6. DNS vs DHCP: Parameter-Based Difference
7. Common DNS Records
8. What Information Does DHCP Provide?
9. DNS and DHCP Port Numbers
10. Real-World Example
11. How DNS and DHCP Work Together
12. DNS vs DHCP in Simple Words
13. Advantages of DNS
14. Advantages of DHCP
15. Limitations and Common Problems
16. Exam-Oriented Points
17. Frequently Asked Questions
18. Conclusion

Difference Between TCP and UDP: TCP vs UDP Explained

Difference Between TCP and UDP: TCP vs UDP Explained

TCP and UDP are two important transport-layer protocols used for communication across computer networks and the Internet. TCP focuses on reliable and ordered delivery of data, while UDP provides a simpler connectionless method with lower overhead.

Whenever computers, smartphones, servers and other devices communicate over a network, data has to be transported from one endpoint to another. The Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) are two of the most commonly used transport-layer protocols.

Although both TCP and UDP are used to transport data, they work differently. Understanding the difference between TCP and UDP is important for computer networking, operating systems, Internet technologies and networking examinations.

Table of Contents

• What Is TCP?
• What Is UDP?
• Difference Between TCP and UDP
• TCP vs UDP Comparison Table
• Connection-Oriented vs Connectionless
• TCP vs UDP Reliability
• TCP vs UDP Speed
• Applications of TCP and UDP
• Advantages and Disadvantages
• Real-World Examples
• Frequently Asked Questions

What Happens When You Type a URL in Your Browser? Step-by-Step Explained

Have you ever wondered what actually happens after you type a website address and press Enter?

In just a few seconds, your browser performs several technical operations involving DNS, IP addresses, network connections, security protocols, web servers, HTML, CSS and JavaScript. This article explains the complete process in simple language.

Table of Contents

1. What Happens When You Enter a URL?
2. Step 1: The Browser Reads the URL
3. Step 2: DNS Finds the Server
4. Step 3: Your Browser Gets an IP Address
5. Step 4: A Connection Is Established
6. Step 5: HTTPS Secures the Connection
7. Step 6: The Browser Sends an HTTP Request
8. Step 7: The Web Server Processes the Request
9. Step 8: The Server Sends a Response
10. Step 9: The Browser Builds the Web Page
11. Step 10: JavaScript Makes the Page Interactive
12. Complete Process at a Glance
13. What If Something Goes Wrong?
14. Frequently Asked Questions

Internetwork Packet Exchange (IPX)

Internetwork Packet Exchange (IPX) is a connectionless datagram protocol that is used by the Novell NetWare Operating System.  This protocol is the implementation of Xerox Network Systems’ IDP (Internet Datagram Protocols). It is Layer 3 protocol i.e. Network Layer Protocol.

IPX Protocol is very similar to the IP protocol. Some useful points about this protocol are as follows:

1)Unique 32 bit address is assigned to Logical Networks ranging from 0x1 to 0xFFFFFFFF (Hexadecimal).

2)48 bit node address is used by hosts, which is by default set to network card’s MAC address. Node address and network address are jointly used to identify the host on network.

3)00:00:00:00 means current network.

4)FF: FF: FF: FF is used as broadcast address.

Figure Given below Illustrates the IPX Packet.

Cheksum : Its value is set to FFFFH