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


you SUCK at password security so PLEASE get a password manager like Dashlane:

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In this next episode of NetworkChuck’s you SUCK at Subnetting course, we dive a bit deeper into how RFC1918 and NAT saved the internet from crumbling due to IP address exhaustion. So don’t miss out as Chuck goes into…

[Video] we’re out of IP Addresses….but this saved us (Private IP Addresses) 1
[Video] we’re out of IP Addresses….but this saved us (Private IP Addresses) 2
[Video] we’re out of IP Addresses….but this saved us (Private IP Addresses) 3
[Video] we’re out of IP Addresses….but this saved us (Private IP Addresses) 4
[Video] we’re out of IP Addresses….but this saved us (Private IP Addresses) 5

41 Comments on “[Video] we’re out of IP Addresses….but this saved us (Private IP Addresses)”

  1. you SUCK at password security so PLEASE get a password manager like Dashlane: https://ntck.co/dashlane50

    🔥🔥Join the NetworkChuck Academy!: https://ntck.co/NCAcademy

    In this next episode of NetworkChuck’s you SUCK at Subnetting course, we dive a bit deeper into how RFC1918 and NAT saved the internet from crumbling due to IP address exhaustion. So don’t miss out as Chuck goes into detail about RFC1918, NAT, and you guessed it…. More Subnetting!

    Are you ready to get serious about your CCNA?
    —————————————————
    ►CCNA Courseware: https://ntck.co/bscw (Boson) (Affiliate)
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    ►CCNP Lab: https://ntck.co/bsenns (Boson NetSim) (affiliate)
    ►CCNP Practice Exam: https://ntck.co/bsenex (Boson ExSim) (affiliate)

    0:00 ⏩ Intro
    0:35 ⏩ your passwords suck too
    2:48 ⏩ The internet Band-Aid
    6:02 ⏩ The even bigger solution, NAT
    10:58 ⏩ IPv4 + 2
    12:54 ⏩ Outro
    14:01 ⏩ Are you working on your CCNA??

  2. oh my god " Po twojej pysznej zupie" in Chuck film XD I'm done 😀 Now i can really proud of my country thats make this song 😀

  3. You say that with NAT a single public IP address is more than enough to connect 300 devices, but from your last video you said the subnet limit imposed on the 192.168.X.X range allows a maximum of 253 devices per instance (with reserved and router addresses removed). Does this mean that on private networks you can unilaterally decide to go classless and give yourself a wider mask that unlocks the second from last octet?

  4. 3:22 It was one of the band aids, the others being shared hosting where multiple domain names can share the same IP ("Name based Virtual Host"), and the other being carrior grade NAT.

  5. My cell phone ISP actually divide up the local IPs and give my phone a very small network with as little as 4 local IP addresses in my phones network. So one access point can have over 4 million networks, each with 4 IPs. Class A private IP with a subnet mask 255.255.255.252. And the only devices that need to be in that network are the smartphone and the access point. The highest and lowest IP in a network are never asigned to a device.

    However there is now a range of IP addresses taken from a public IP range that is specifically reserved for carrier NAT (CGNAT).

  6. 12:15 Yes I get a public IPv6 and public IPv4 address on my cell phone. Like I said one cell phone access point can divide the Class A private network into over 4 million networks allowing over 4 million phones to use the same public IPv4 address. That is one of the reasons IPv4 STILL works.

  7. If we have private IP to uniquely identify each device in a local network then why do we have the MCA addresses for the same purpose as well.

  8. Noob question here. Does my router has an ipv4 private adress that goes to the server of my ISP and they are the one that have a public ip adress?

  9. No I'm not using privete IPs, my ISP gives me how many public IPs I wan't, I have 7 devices hooked up with cable right now and another 11 connected thru a simple wireless switch. No private IPs.

  10. There wasn't a need for IPv6, just extend the band aide by just adding a town/city wide router between the home routers and the ISP, the new routers would act as a middle ISP

  11. I once successfully hacked a website by scanning through 0 to 255 on the last digit of a ip address (forgot what it's called) for vulnerable open ports on a private network. It worked! 😜

  12. Could anyone explain to me how does MAC address differ from private IP address? I thought of MAC address as a local way for communication whereas IP is a global way for communication, but with private IP addresses, MAC address seems redundant to me.. thanks in advance

  13. I have learned more about IP Addresses from watching 30 minutes of your channel than I have from years of messing with (and troubleshooting) devices at home.

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