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IPv4

IPv4 (Internet Protocol version 4) internet ki sabse purani aur sabse widely deployed networking…

Overview
🌟

IPv4 — Quick Facts

📌

Property: Detail

🎯

Topic Name: IPv4 (Internet Protocol version 4)

⚡

Category: Networking / Internet / Protocol

🔑

RFC: RFC 791 (September 1981)

Topic 1
📥 📥 🧠 🔬 💡 🎯

Infobox

📚 | Property | Detail | |---|---| | Topic Name | IPv4 (Internet Protocol version 4) | |…
Topic 2
💡

Kya Hai IPv4

💡

Har device ko unique address dena

🔑

Data ko packets me todna

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Packets ko source se destination…

🎯

TTL (Time to Live) se infinite…

Topic 3
✨

Kyun Zaroori Hai

🎯 | Reason | Explanation | |---|---| | Internet Foundation | Poori internet IPv4 par bani…
Topic 4
⭐

IPv4 Address Format

💡

Har octet = 8 bits = 0 se 255 tak…

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Dots se separated (dotted-decimal…

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Total combinations: 2^32 =…

Topic 5
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IPv4 Address Structure Table

🔑 | Component | Description | Example | |---|---|---| | Full Address | 32-bit dotted…
Topic 6
✨ 📊 🔬

Mermaid Diagram — IPv4 Packet Journey

✨ `mermaid flowchart TD SRC["Source Device<br/>IP: 192.168.1.100<br/>Subnet:…
Topic 7
🔒

IPv4 Header

🌟 IPv4 header har IP packet ke start me hota hai — ye packet ka "envelope" hai jisme…
Topic 8
🚀

IPv4 Header Fields Table

💡

TTL: Har router 1 decrement karta…

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Protocol: TCP (6), UDP (17), ICMP…

⚡

Checksum: Sirf header ka — payload…

Topic 9
📚

Address Classes

📚 Original IPv4 design me addresses 5 classes me divide kiye gaye the. Ye classful…
Topic 10
💡 📊 🔬

Address Classes Table

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Class A: 16 million hosts per…

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Class C: sirf 254 hosts — bahut…

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Solution: CIDR (Classless…

Topic 11
✨

Private vs Public Addresses

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Internet par globally unique aur…

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IANA → RIRs → ISPs → End Users ko…

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Websites, servers, aur…

🎯

Example: 8.8.8.8 (Google DNS),…

Topic 12
⭐

Private Address Ranges

⭐ | Range | Class | CIDR | Usable Hosts | Common Usage | |---|---|---|---|---| | 10.0.0.0 –…
Topic 13
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Special Addresses

🔑 | Address | Purpose | RFC | |---|---|---| | 0.0.0.0 | "This network" — default route,…
Topic 14
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Subnetting

💡

Efficiency — IP addresses waste na…

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Security — departments/functions…

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Performance — broadcast domain…

🎯

Organization — logical separation…

Topic 15
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CIDR Notation

🌟 CIDR (Classless Inter-Domain Routing) ne classful addressing replace kiya: | CIDR | Mask…
Topic 16
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DHCP — Dynamic Assignment

💡

IP address temporary hota hai…

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Client renew karta hai (usually at…

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Lease expire par IP pool me wapas…

Topic 17
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NAT — Address Translation

📚 NAT IPv4 exhaustion ka primary workaround hai: How NAT Works 1. Private device…
Topic 18
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IPv4 Exhaustion Problem

💡

1981: IPv4 defined — 4.3 billion…

🔑

2011: IANA ne last /8 blocks RIRs…

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2012-2019: Individual RIRs ne apne…

🎯

Present: New IPv4 blocks milna…

Topic 19
✨

IPv4 vs IPv6

🎯 | Feature | IPv4 | IPv6 | |---|---|---| | Bits | 32 | 128 | | Addresses | ~4.3 billion |…
Topic 20
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Routing Basics

⭐ How IPv4 Routing Works 1. Device check karta hai: destination same subnet me hai ya nahi?…
Topic 21
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Fragmentation

💡

Default MTU: 1500 bytes (Ethernet)

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Agar packet > MTU, router ya…

⚡

Har fragment me same…

🎯

Fragment Offset batata hai ye…

Topic 22
✨ 📊 🔬

Common IPv4 Tools

✨ | Tool | Purpose | Example | |---|---|---| | ping | Connectivity test (ICMP echo) | ping…
Comparison
✨

IPv4 vs IPv6

⚖️

Bits: 32

⚖️

Addresses: ~4.3 billion

⚖️

Format: Dotted decimal

Diagram
📥 ⚙️ 🔬 💡

Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

📖

IP Address

🔗

IPv6

💡

TCP IP

📚

Subnetting

🔑

DHCP

🌐

NAT

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

IPv4 ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

IPv4 ka 'Topic Name' kya hai?

Complete! 🎉
COMPLETE

IPv4 Complete!

Aliens Wiki · HIEN · Cinematic Knowledge

✅

IPv4 Complete

➡️

IP Address

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