Programmer Humor

19572 readers

919 users here now

Welcome to Programmer Humor!

This is a place where you can post jokes, memes, humor, etc. related to programming!

For sharing awful code theres also Programming Horror.

Rules

Keep content in english
No advertisements
Posts must be related to programming or programmer topics

founded 1 year ago

MODERATORS

Feyter@programming.dev

anzo@programming.dev

BurningTurtle@programming.dev

pylapp@programming.dev

1010

GoOn (programming.dev)

submitted 1 year ago by mac@programming.dev to c/programmer_humor@programming.dev

108 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] Mr_Dr_Oink@lemmy.world 7 points 1 year ago (1 children)

Remember, when we abbreviate an ipv6 address all leading zeros are reduced to a single 0.

E.g

0003 would just become 03

When there are geoups of 4 zeros these can be represented as a single 0 or as a double colon ::

But we can only use the :: once so when summarizing an address containing multiple groups of 4 0s one after the other they can all be abbreviated to a single ::

fe80:0000:0000:0000:0210:5aff:feaa:20a2 would become fe80::210:5aff:feaa:20a2

Therefore it is perfectly valid to abbreviate an address of 0000:0000:0000:0000:0000:0000:0000:0000 /0 to just ::/0

[–] Static_Rocket@lemmy.world 2 points 1 year ago

Eh, I've seen some software internally prefer 0::0 instead of just ::0 or :: . Notation wise though you are correct, it is unnecessary.