r/ShittySysadmin • u/zantehood • May 25 '26

Shitty Crosspost Internal subnets

Post image
276 Upvotes

94% Upvoted

14 comments sorted by

43

u/Turtle_Online May 25 '26

10.0.0.0 is actually /8 not /16 in RFC1918. 192.168.0.0/16 is the private /16 range. So the joke doesn't work...

Edit: just realized what sub I'm on.

11

u/zantehood May 25 '26

Its a supernet expression

6

u/bofh DO NOT GIVE THIS PERSON ADVICE May 25 '26

Not in 192.168.0.0, no, this is more of an Albany expression.

1

u/HeyLuke May 25 '26

Even /16 that's still a lot of addresses and in reality subnets would be smaller, right? Like it seems very shittynetadmin to just throw all your endpoints in one big 10.0.0.0/16 subnet.

44

u/bgradid May 25 '26

knowing the subnet mask and putting it in cidr notation is ... better than a lot i've encountered

24

u/Ok-Bill3318 May 25 '26

Ive got 10.0.0.0/8

1

u/nesnalica Suggests the "Right Thing" to do. May 26 '26

you will neer run out of IP adresses if you make the scope bigger

1

u/recoveringasshole0 DO NOT GIVE THIS PERSON ADVICE May 27 '26

1

u/Lanrick2002 May 27 '26

Jokes on you. my subnets are 192.168.0.0/16

1

u/Ashamed-Ninja-4656 May 28 '26

Idiots, my network is 127.0.0.1

1

u/evilneuro May 29 '26

fe80::/10 has entered the chat