[System Design] CS 75 Posted on 2019-07-22 | In System Design , CS 75 | Lecture 0 HTTPIP AddressIPV4: X.X.X.X, X is from 0-255, so there are 256 ^ 4 = (2^8)^4 = 2 ^ 32 IPV4 addresses in total. We’re running out of them. IPV6