Tag: IP addressing scheme
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IP stack : CIDR
Classless Inter-Domain Routing (CIDR) is a modern addressing scheme used in the Internet Protocol (IP) stack to optimize the allocation of IP addresses and improve routing efficiency. Introduced in 1993, CIDR replaced the traditional class-based addressing system (Class A, B, C, etc.) by allowing for more flexible and efficient use of IP address space. It…
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IP stack : IP4 vs IP6
The Internet Protocol (IP) stack is the foundation of modern networking, enabling communication between devices across interconnected networks. IPv4 (Internet Protocol version 4) and IPv6 (Internet Protocol version 6) are the two primary versions of IP, each with distinct characteristics and use cases. While IPv4 has been the backbone of the internet since the 1980s,…
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CIDR Block
A Classless Inter-Domain Routing (CIDR) block is a method for allocating and managing IP addresses in a flexible manner, reducing wastage of IP space. In cloud environments like AWS, CIDR blocks define the range of IP addresses that can be allocated to resources within a Virtual Private Cloud (VPC) or subnet. Mastering CIDR configuration is…