- Home
- Top Videos Insights
- Public vs Private IP Address
Public vs Private IP Address
Content Introduction
This video explains the differences between public and private IPv4 addresses. It begins by defining an IP address and the necessity of every device having one for communication on a network. Public IP addresses are unique, registered, and provide internet access, assigned by ISPs. In contrast, private IP addresses are not publicly registered and are used internally within home or office networks. They are assigned by routers through DHCP and require translation to public IPs via NAT to access the internet. The video also covers the classification of private IP addresses (Class A, B, and C) and how to find both public and private IP addresses on various operating systems. The key distinctions include the unique nature of public IPs, their necessity for internet access, cost implications, and security considerations. The video concludes by emphasizing the security advantages of private IPs and promotes the use of VPNs for safer internet browsing.Key Information
- IP addresses are numerical identifiers for devices on a network, with two types: public and private.
- Public IP addresses are assigned by internet service providers and are necessary for internet access; they are unique and registered on the internet.
- Private IP addresses are used internally within networks (homes or businesses) and are not registered on the internet; they need to be converted to public IPs for internet access via NAT (Network Address Translation).
- Private IP addresses come in three classes: Class A (10.x.x.x), Class B (172.x.x.x), and Class C (192.x.x.x), with Class C being the most common.
- Public IP addresses require payment for use, while private IP addresses are free.
- Public IPs are less secure as they are traceable, while private IPs are more secure as they are hidden from the internet.
- To check your public IP address, you can use websites like 'whatsmyipaddress.com.'
Timeline Analysis
Content Keywords
Public IP Addresses
Public IP addresses are assigned by internet service providers and are unique identifiers that allow access to the internet. Each public IP address is registered, meaning there are no duplicates globally. Without a public IP, devices cannot connect to the internet.
Private IP Addresses
Private IP addresses are used internally within networks, such as homes and businesses. They cannot be accessed from the internet directly and are not registered publicly. These addresses are assigned by routers, and multiple devices can share the same private IP address.
NAT (Network Address Translation)
NAT is a service within routers that translates private IP addresses to public ones for internet access and vice versa. This enables multiple devices with private IPs to communicate externally through one public IP.
IP Address Classes
Private IP addresses are categorized into three classes based on their range: Class A (starting with 10), Class B (starting with 172), and Class C (starting with 192). Class C is most commonly used in home networks.
Finding Your IP Address
To find your device's IP address, Windows users can use the command 'ipconfig', while Mac and Linux users should use 'ifconfig' in the terminal. To find your public IP, visit websites like whatsmyipaddress.com.
Security of IP Addresses
Public IP addresses are not secure and can be traced, necessitating additional security measures like VPNs. In contrast, private IPs are more secure as they are hidden from the internet and cannot be traced externally.
Related questions&answers
What is an IP address?
What is the difference between public and private IP addresses?
How are public IP addresses assigned?
Can I use a private IP address to access the internet?
What is NAT?
What are the classes of private IP addresses?
How can I find my IP address on Windows?
Why are public IP addresses not free?
What security measures can I take for my public IP?
Why are private IP addresses considered more secure?
More video recommendations
Top 11 Reasons To Pay for an eBay Store | When It Makes Sense
#E-commerce2025-03-28 13:42Which eBay store should you get?
#E-commerce2025-03-28 13:42How To Find VIRAL Products For TikTok Shop 2025
#E-commerce2025-03-28 13:4250 Things That Sell On eBay To Make Consistent Money
#Social Media Marketing2025-03-28 13:42Telegram Isn't As Private As You Think
#Social Media Marketing2025-03-28 13:41How To Sell On eBay For Beginners 2025 | Step By Step Ebay Beginners Guide
#E-commerce2025-03-28 13:41Forget Alibaba! Here Are 13 Better Alternatives To Find Wholesale Suppliers
#E-commerce2025-03-28 13:41Can't Receive Telegram Login Code? Here's the Solution 2025!
#Social Media Marketing2025-03-28 13:41