Question

question about conversion of ipv6 hex to binary

IP addressing, IPv6

i saw in a book , it was 2000::/3 prefix, it will be 2 or 3
hex value, how it is possible , when u r taking prefix as 3 , if i convert this in binary 1110 0000 0000 0000 ::/3,
is it mean that first 3 bits are in network , just explain me how 2000::/3 is 2 or 3 hex..

2000::/3 means .......each of the digits of 2000 are in hex......that means 2 will be represented in 4 bits.......now " :: " this quotation is used to shorten the length of the address ( only representation cause, not originally)....reason for " :: " here is there are all zeroes after 2000 in all quartret on the address, we can place " :: " quote in place of zeroes......and for network IPv6 uses first 64 bit (out of 128 bit)......