>>snakey+4i4
Even discounting dial-up, this really depends on where you are in the world at the time. PPPoE and direct hookup (via the cable/ADSL modem) are still relatively common where I was at the time that Blaster was roaming around, while some countries have forced CGNAT even before CGNAT became a common word, usually for "protecting the children" like Cleanfeed (and even discounting that, event at the time you could still get IPv4 effortlessly there had been, and certainty there are still, crappy ISPs which don't really care about direct connections).