fd::1 is somewhere in the reserved ::/8 space where various stuff like old ipv4 mapped addresses and localhost reside. What you probably mean is something like fd00::1, but that is something you shouldn't use, because 'fd00::/8' is a probabilistically unique local address (ULA) block. You are supposed to create a /48 net by appending 40 random bits to fd00::/8. Of course, if your fair dice roll lands on all zeroes, and you are ok with probable collisions in case of a network merge, you are fine ;)
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fd::1 is somewhere in the reserved ::/8 space where various stuff like old ipv4 mapped addresses and localhost reside. What you probably mean is something like fd00::1, but that is something you shouldn't use, because 'fd00::/8' is a probabilistically unique local address (ULA) block. You are supposed to create a /48 net by appending 40 random bits to fd00::/8. Of course, if your fair dice roll lands on all zeroes, and you are ok with probable collisions in case of a network merge, you are fine ;)