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we’re out of IP Addresses….but this saved us (Private IP Addresses)

we’re out of IP Addresses….but this saved us (Private IP Addresses)

Source: YouTube · NetworkChuck · published Apr 18, 2022 · 15:04

Cybersecurity
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Description

RFC 1918 and NAT saved the internet from IP address exhaustion in 1996 0:00, without which we wouldn't have the modern internet 0:13.

Key Takeaways:
• Private IP addresses were created by taking chunks from public IP ranges, making them non-unique for internal networks 3:17
• Private IP addresses are not publicly routable on the internet, requiring NAT to enable internet access 5:35
• NAT allows multiple devices with private IPs to share one public IP address by translating addresses at the router level 6:08
• Even with these solutions, IPv4 addresses eventually ran out, leading to IPv6 development with vastly more addresses 10:37

These technologies literally changed the game of the entire internet, allowing multiple devices to share limited public IPs 11:21.

Sources:

  • 0:00 Introduction to 1996 IP address crisis
  • 0:13 Impact of no solution on modern internet
  • 3:17 Explanation of RFC 1918 and private IP creation
  • 5:35 Private IP addresses and internet routing limitations
  • 6:08 How NAT works to share public IP addresses
  • 10:37 IPv4 exhaustion and IPv6 development

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Topic: Cybersecurity. Commonly maps to: Security and Risk Management, Security Operations. Exact CISSP domains are assigned during generation.

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First 800 characters of the transcript

it's 1996 and the internet is going to end it's doomed we're out of IP addresses there's nothing we can do but then and comes in RFC 1918 an unlikely hero that literally saved the day without it we would not have the internet we could have you wouldn't be watching me right now and my toilet could not be connected to the internet which I think is I don't know a bad thing but seriously we're talking about two things in this video private IP addresses and Nat without these two things we would be nowhere and they literally changed the game of the entire internet the entire world so get your coffee ready let's jump into this hold up before we dive in I gotta tell you not only do you suck at subnetting you also probably suck at password security which means you're gonna get hacked like any day n…