IPv4 has a total of 64 bits, which limits the # of possible IP addresses. We began running out of IP addresses due to the boom of the internet age, to solve the limited IP addresses they made a 128 bit IP addressing system which is IPv6, this allows for MANY more addresses. IPv4 allows for 4,294,967,296 IP addresses world wide, and IPv6 allows for 42 UNDECILLION IP addresses (this also accounts for those that are not public, if we include those it is 340 UNDECILLION addresses). IPv6 was just created to solve the issue of IPv4 running out of addresses to be used.
Bill
2016-04-12 04:21:26 UTC
IPv4 addresses are 32 bits. IPv6 addresses are 128 bits.
2016-04-12 11:23:57 UTC
It makes no sense technically IP4 Routing Address is only 64 Bit and not the total of 128.
Yes IP6 is Bigger than and supports more payload data and more headers than IP4.
But as a whole IP4 is actually 64Bit address but its addressed differently than the new IP6
IP4 Network Address = xxx.xxx.xxx.xxx = 32 Bits
IP4 Subnet Address = xxx.xxx.xxx.xxx = 32 Bits
total of 64Bits
IP6 is just addressed on the same syntax of Network address + subnet Address...