Wiki Article · Cinematic

Carrier-grade NAT

Carrier-grade NAT (CGN), jisko CGNAT ya Large Scale NAT (LSN) bhi kehte hain, ek network address…

Overview

Carrier-grade NAT — Quick Facts

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Property: Detail

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Full Name: Carrier-grade Network Address…

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Abbreviations: CGN, CGNAT, LSN (Large Scale NAT)

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Type: Network Address Translation (NAT)

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Infobox

📚 | Property | Detail |…

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Kya Hai Carrier-grade NAT

💡 Carrier-grade NAT (CGNAT) ek large-scale NAT system hai jo ISP ke network infrastructure…

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Kaise Kaam Karta Hai

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Customer A → 203.0.113.10 : ports…

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Customer B → 203.0.113.10 : ports…

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Customer C → 203.0.113.10 : ports…

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NAT444 Topology

⭐ NAT444 ka "444" matlab hai ke traffic 3 address domains se guzarta hai: 1. Private…

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Key Concepts

🔑 | Concept | Explanation |…

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Shared Address Space

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Agar ISP traditional private…

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100.64.0.0/10 specifically is…

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IPv4 Exhaustion Aur CGNAT Ki Zaroorat

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2011: IANA ne last /8 blocks…

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2012-2019: Alag alag RIRs (APNIC,…

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Aaj zyada tar regions me new IPv4…

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ISP ko naye public IPs nahi…

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Advantages

🚀 1. IPv4 Address Conservation: ISP bahut kam public IPs se lakho customers ko serve kar…

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Disadvantages

📚 1. Port Forwarding Nahi Milta: Customers apne server (game server, web server, CCTV…

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CGNAT vs Traditional NAT

💡 | Feature | Traditional NAT (Home Router) | Carrier-grade NAT (ISP) |…

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Regulatory Aur Logging Requirements

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Transport protocol

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Internal/external source IP + port

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Internal/external destination IP +…

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Timestamp

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Real-World Usage

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India: Major ISPs (Jio, Airtel…

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Europe: Kuch European ISPs bhi…

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Mobile Carriers Globally: Almost…

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Developing Markets: Asia, Africa,…

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IPv6 Transition Technologies Ke Saath Relation

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DS-Lite (Dual-Stack Lite):…

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MAP-T / MAP-E: Mapping of Address…

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464XLAT: Mobile networks me…

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NAT64 + DNS64: IPv6-only network…

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Mermaid Diagram

✨ `mermaid flowchart LR subgraph CustomerHome["Customer Home Network"]…

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Troubleshooting Tips — CGNAT ke Saath

🌟 Agar tum CGNAT ke peeche ho aur issues face kar rahe ho: 1. Port Forwarding Chahiye?: ISP…

Comparison

CGNAT vs Traditional NAT

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Deployed By: End user (home/office…

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Scale: 5-50 devices

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Address Space Used: 192.168.x.x /…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Carrier-grade NAT ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

Carrier-grade NAT ka 'Full Name' kya hai?

Complete! 🎉

Carrier-grade NAT Complete!

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