Is IPv6 case sensitive?

Question

Are IPv6 addresses case sensitive ?

2001: 0: 5ef5: 79fb: B5: 9ca5: A266: E068

against

2001: 0: 5EF5: 79FB: B5: 9CA5: A266: E068

I assume they are both correct, but I have to be sure.

Answer 1

The IPv6 address represents hexadecimal digits, which in turn are just a bunch of numbers, so no, it's not case sensitive.

Answer 2

IPv6 , RFC 5952, IPv6, 4.3 :

The characters "a", "b", "c", "d", "e", and "f" in an IPv6 address
MUST be represented in lowercase.

Answer 3

Wikipedia IPv6 , , 2001: 0: 5ef5: 79fb: b5: 9ca5: a266: e068 - , 2001 : 0: 5EF5: 79FB: B5: 9CA5: A266: E068.

Answer 4

, IETF . IETF - Internet Engineering Task Force, IP-.

Answer 5

IPv6 , .