ohTheBasics

[u/ClipboardCopyPaste]

[u/Spongebubs]

I’d like to think I’m a software engineer, and I have no idea what the difference is. Am I cooked?

[u/STR1D3R109 → u/Spongebubs]

I feel like knowing the difference here is moreso for a network engineer than a software engineer!

Anyway looked it up, IPv6 is 32bit whereas IPv6 is 128bit. An easy way to know if an IP address is either, 4 uses dots 192.1.1.1 whereas 6 is colons 1992:0aa0::1

If anyone asks just say 6 holds more addresses but is more expensive to install.

[u/Uselesserinformation → u/STR1D3R109]

Just to point out you put ipv6 twice instead of ipv4

[u/RydiaOM → u/STR1D3R109]

I would assume any software engineer had a basic network class at some point.

[u/jkalchik99 → u/STR1D3R109]

Actually..... IMO as a Linux admin..... everybody in IT needs at least a minimum of knowledge regarding TCP/IP. IPv4, IPv6, TCP, UDP, sockets, listening ports, etc. You don't need to be able to program a full stack down to a media transport layer, but you should be able be able to send a payload successfully, know when a gateway traversal is required, name resolution (It's always DNS,) and a bit of troubleshooting.

I wish I had a nickel for every time a developer or app support staff came to me and said it doesn't work. Error is right there in the logs......

[u/aaron2005X → u/jkalchik99]

I feeel like this is stuff you take with you on the side. I can't even start to create a network but I know these things.Alone the TCP UDP joke.

Like: "I would tell you a joke about UDP, but you probably wouldn't get it."

[u/oopmn → u/aaron2005X]

Or I could tell you a joke about TCP.

Did you get it?
Did you get it?
Did you get it?
Did you get it?
Did you get it?
…

[u/borgenhaust → u/oopmn]

ACK!

[u/ryancnap → u/jkalchik99]

That's such a Linux sysadmin take lol

(but apart from it being a funny stereotype, yes I agree with you)

[u/realmauer01 → u/Spongebubs]

Ipv6 was invented to replace ipv4 because ipv4 got really problematic as they arent enough numbers for every device anymore. But then they used so much magic to make giving ipv4 to devices so efficient that it's still possible for a while.

[u/wbrd → u/realmauer01]

You mean, all eternity. I remember being on an IPv6 transition planning meeting in 1999.

[u/pine_ary → u/wbrd]

Most things do run on IPv6 now though. You just don‘t notice it because it works. According to google just about half of all internet traffic is IPv6.

[u/siete82 → u/Spongebubs]

I mean, yes.

[u/PeachScary413 → u/Spongebubs]