Network virtualization ppt

Static IP

Static IP: What Is It and How Does It Work?


Static IP is a term that every tech enthusiast ought to familiarize themselves with. It refers to a fixed IP address assigned to a computer or device in a network. Unlike a dynamic IP, which is automatically assigned by a DHCP server, a static IP remains constant and is manually entered into a device’s settings.
To put it simply, a static IP is the website equivalent of having a permanent address while renting an apartment. This IP ensures that your device is always reachable and identifiable no matter how much your network changes. It’s mostly used for servers, gaming systems or printers that need constant access to the network and require a predictable IP address.
In contrast, dynamic IPs may change frequently, making it difficult to establish reliable connections with other devices. Although static IPs are somewhat easier to manage, they require technical knowledge to configure and maintain. One of the biggest advantages of static IPs is that they can help reduce the risk of hacking as hackers tend to target dynamic IPs to remain anonymous.
In summary, having a static IP can make a difference in the way you connect to the internet, especially if you’re running a website or an online business. However, if you’re not tech-savvy, configuration and maintenance can pose some challenges. Ensure that you consult a professional if you’re unsure how to go about it.

Router ports used —

Router Ports Used


When it comes to routers, understanding the ports used is crucial. Router ports are the various connection points on a router that allow you to connect other devices to it. Understanding which ports to use is essential if you want your router to work efficiently.
There are several types of router ports, including LAN ports, WAN ports, Serial ports, and USB ports. Let's take a closer look at what each of these ports is used for:
1. LAN Ports - LAN ports are used to connect devices to your local network. These ports are typically labeled 1-4 and are used to connect devices such as desktop computers, laptops, printers, and gaming consoles.
2. WAN Ports - WAN ports are typically used to connect your router to the internet. These ports are used to connect to devices such as modems and Wi-Fi extenders.
3. Serial Ports - Serial ports are used to connect a device that uses a serial connection. This type of port is commonly used for older devices, such as a console port on a router.
4. USB Ports - USB ports are used to connect external devices to your router, such as a printer or an external hard drive.
It's important to note that not all routers have every type of port listed above. Make sure to check your router's manual to determine which ports your specific model uses.
In conclusion, understanding router ports is critical if you want your router to function correctly. By knowing what each port is used for, you can ensure that you connect the right devices to the right ports, which will help to improve your network's overall performance.

Subnet mask definition

Subnet Mask Definition


Subnet mask is a term used in computer networking that refers to a technique used to divide a single network into multiple smaller subnetworks. It is a binary pattern used to identify which portion of an IP address belongs to the network and which part belongs to the host. In simpler terms, subnet mask defines the range of IP addresses that are available for use on a particular network.


A subnet mask is typically represented as four 8-bit sections or octets separated by dots, such as 255.255.255.0. The value of each octet determines the number of bits that are included in the network and host addresses. In this example, the first three octets represent the network portion of the address, and the last octet represents the host portion.


Subnet masks are commonly used in large networks to reduce network traffic and improve performance. By dividing the network into smaller subnetworks, computers can communicate with each other more efficiently. Additionally, subnet masks can help to improve network security by limiting access to specific portions of the network.


When configuring a network or troubleshooting network issues, using the correct subnet mask is critical. The wrong subnet mask can cause communication issues between devices and result in slow network performance. Therefore, it is essential for network administrators and IT professionals to have a solid understanding of subnet masks and how to configure them effectively.


In summary, subnet mask is a crucial aspect of network configuration and is vital in maintaining a robust and efficient network.

Subnet mask definition

Router guest access

Router Guest Access


Have you ever had friends or family come over to visit and ask you for your Wi-Fi password? It can be a hassle to give your personal password out, especially if you have it memorized and don't want to reveal it. Well, fear not! Many routers have a guest network feature that allows you to create a separate Wi-Fi network for guests to use without disclosing your personal password.


Router guest access is perfect for situations where you want to provide internet access to guests, but don't want to give them access to your home network. With guest access, your visitors can use the internet without accessing your shared files, printers, or other devices on your personal network.


Setting up guest access is easy. First, log in to your router's settings and navigate to the guest network section. From there, you can customize the network's name and Wi-Fi password. Some routers may also have additional settings, such as limiting bandwidth or setting a time limit for guest access.


It's important to note that guest networks are not as secure as your personal Wi-Fi network. If you have sensitive information stored on your devices, it's best to create a separate network and change your personal Wi-Fi password regularly.


Overall, router guest access can be a useful and convenient feature for hosting guests. It allows them to access the internet without accessing your personal network, and with a few simple steps, you can easily set it up on your own router.

Router wireless network adapter

Router Wireless Network Adapter


A router wireless network adapter is a device that enables a computer, laptop, or mobile device to connect to a wireless network. The router typically does the heavy lifting for wireless networks, but it needs to send signals to the devices so that they can connect to the network. This is where the network adapter comes in.
A wireless network adapter can be a built-in feature on some computers or mobile devices. These types of adapters work well for connecting to home or small business networks, but their range may be limited. They also may not be as powerful as external adapters.
External wireless network adapters are typically used to boost the range and speed of a wireless network. They are easy to install and can be plugged into a USB port. These adapters can handle high-speed data transfers and are ideal for gaming, streaming, or large file transfers.
The type of network adapter you choose will depend on your needs. If you have a small network, a built-in adapter may be sufficient. If you need more coverage or faster speeds, an external adapter may be the way to go.
When you are shopping for a router wireless network adapter, look for one that is compatible with your computer or mobile device. Check the range of the adapter and make sure it will provide the coverage you need. Also, consider the adapter's speed and whether it is suitable for your intended use.
In conclusion, a router wireless network adapter is an essential tool for any computer or mobile device that needs to connect to a wireless network. Take the time to choose the right adapter for your needs and enjoy fast, reliable wireless connectivity.
Router wireless network adapter

Wireless transmission security vulnerability

Wireless Transmission Security Vulnerability


In today's technology-driven world, wireless transmission is ubiquitous. From Wi-Fi networks to Bluetooth connections, data is transmitted wirelessly every second of every day. However, this convenience comes with a price - the risk of security vulnerability.
Wireless transmission security vulnerability is a real threat that can affect any device that uses wireless transmission. Hackers and cybercriminals can exploit this vulnerability to gain unauthorized access to devices, steal personal data, or launch a cyberattack.
One of the reasons why wireless transmission is vulnerable is due to the way data is transmitted. Wireless signals travel through the air, which makes them susceptible to interception. This means that anyone with the right equipment and knowledge can capture and decipher wireless signals, including passwords or credit card information.
Another reason for wireless transmission vulnerability is the lack of security protocols in place. Many wireless devices do not come with built-in security features, leaving them open to attack. For example, many Wi-Fi networks still rely on the outdated and unsecured Wired Equivalent Privacy (WEP) protocol, which is easily breakable.
To prevent wireless transmission security vulnerability, it is essential to take proper security measures. One precaution is to use strong encryption protocols such as Wi-Fi Protected Access 2 (WPA2), which is currently the most secure wireless protocol available. Additionally, users should regularly change their Wi-Fi network passwords and avoid using public Wi-Fi networks whenever possible.
In conclusion, wireless transmission security vulnerability is a real issue that can have significant consequences. However, with the right security measures in place, it is possible to minimize the risk and protect your wireless devices from attack.

Static IP address

Static IP Address


Are you familiar with the term "Static IP address"? If not, let us help you understand what it is and how it differs from a dynamic IP address.
In simple terms, a static IP address is a fixed IP address that remains constant and unchanging for a particular device or network. In contrast, a dynamic IP address is a temporary IP address that changes each time you connect to the internet.
Static IP addresses are used primarily for businesses and organizations that require a consistent connection to the internet. With a static IP address, you have more control over your network and can easily host servers, run email or FTP servers, and access remote devices securely.
Moreover, a static IP address enables you to access your devices from everywhere over the internet with ease. You can assign a domain name to your IP address, making it easy to access your network from anywhere on the web. Plus, it helps you to bypass any security restrictions that your internet service provider may have put in place.
However, it's worth noting that static IP addresses are usually more expensive than dynamic IP addresses. And even though they offer more control over your network, they are also more vulnerable to security breaches. So, you need to maintain proper security protocols and frequently update your security measures to avoid any potential risks.
In conclusion, a static IP address may be useful for businesses and organizations that require a consistent connection to the internet. But it isn't necessary for typical home users who are only using the internet for browsing or streaming services.