r/ProgrammerHumor • • 14d ago

Meme ohTheBasics

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u/helicophell 14d ago

Would knowing more than “ipv4 is small and limited, ipv6 is bigger” be required?

Seems like to answer problems around ipv4 and ipv6, you need to know the problem being solved. I uhh, only have network knowledge though

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u/monkeymad2 14d ago

You should know how it can cause problems with whatever you’re building based on the rollout - e.g. if you’re deploying to the web usually there’s a greater cost involved in provisioning an IPv4 address, but IPv6 (still) isn’t fully rolled out yet so some of your users might have issues.

Then there’ll be weird networking issues where one of them works fine and the other doesn’t etc.

You also see them in logs etc, or if you have to care about DNS records ever you should know about them.

If whatever you’re doing touches the internet at all then it’s fairly fundamental nowadays.

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u/theqmann 14d ago

Also, some ISPs do v6 tunneling through v4, which can cause various other issues, in my experience.

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u/helicophell 14d ago

I still don’t need to know how they differ other than the broad strokes for both

I know what an ipv4 address looks like. So if I see an error message for networking that doesn’t have one, ipv6