Month: July 2019

Diagram showing IPv6 subnetting for departments with host requirements and corresponding subnet allocations.
CCNA July 29, 2019

IPv6 Subnetting Simplified: Unlock the Power of Next-Gen Networking

The shift to IPv6 addresses the exhaustion of IPv4’s 32-bit space, with adoption accelerating in 2025 to support IoT and global connectivity, necessitating new subnetting strategies. IPv6 addresses are increasingly replacing IPv4 due to address exhaustion, with adoption surpassing 40% globally by 2025, driving new subnetting needs. We use CIDR, VLSM, and NAT to save […]
Asad Ijaz Read More
Diagram showing VLSM subnetting with IP ranges and host allocations for departments like Sales, HR, and Management.
CCNA July 28, 2019

VLSM Insights: Avoid IP Waste with Precision Subnetting 2025 Guide

VLSM (Variable Length Subnet Masking) helps improve the use of IP address space, with applications in IPv6 internal segmentation as of June 2025. Using a variable-length subnet mask, we can assign LAN and WAN segments without wasting IP addresses. As shown in the scenario in the Figure below, the hosts in each subnetwork will be […]
Asad Ijaz Read More
Subnetting Based on Network Requirement
CCNA July 28, 2019

Master Subnetting Based on Network Requirement – Exclusive Guide 2025

Sometimes, the number of sub-networks is more critical than the number of host addresses per sub-network. For example, an organization wants to separate network traffic based on internal structure or department setup. In this case, subnetting based on network requirements is most important in determining how many bits to borrow. The addressing scheme must allow […]
Asad Ijaz Read More
/8 prefix
CCNA July 26, 2019

Creating 4000 Subnets from a /8 Prefix – Exclusive How to Guide

Some organizations need more subnets. For example, a small ISP requires 4000 subnets for its clients. Each client required abundant space in the host portion to create their subnets. The network address 115.0.0.0/8 has a default subnet mask of 255.0.0.0 or /8 prefix. The /8 prefix means that there are 24 host bits available to […]
Asad Ijaz Read More
CLASSLESS SUBNETTING EXAMPLES
CCNA July 21, 2019

Classless Subnetting Examples – Exclusive Details 2025

Classless subnetting evolved from classful limitations, introducing CIDR (Classless Inter-Domain Routing) in 1993 to address IP exhaustion. CIDR allows borrowing bits from any host position (e.g., /25 from /24), enabling efficient address allocation, a shift critical for modern networks as of June 2025. Classless subnetting allows administrators to create smaller subnets (e.g., /25 from /24) […]
Mudassir K Read More
Table comparing classful and classless addressing formats, with class types A to E, header labels, subnet mask information, and address ranges.
CCNA July 18, 2019

Classful vs Classless Addressing Definitive Guide 2025 – From Confusion to Confidence in IP Addressing

Classful addressing emerged in the early Internet (1980s) with fixed Class A, B, and C ranges, leading to IP address exhaustion. The introduction of CIDR in 1993 marked the shift to classless addressing, allowing flexible prefixes (e.g., /20) and supporting the IPv4-to-IPv6 transition Classful and Classless addressing are terms describing IP address structure, with classless […]
Asad Ijaz Read More
broadcast domain
CCNA July 16, 2019

Collision Domains and Broadcast Domains: A Complete Guide 2025

In the realm of networking, understanding collision domains and broadcast domains is fundamental for designing efficient and scalable networks, a critical skill for CCNA and CCNP certifications. A collision domain represents a network segment where data packets may collide if multiple devices transmit simultaneously, a common challenge in older Ethernet setups like those using hubs. […]
Asad Ijaz Read More
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