World shrugs as IPv4 addresses finally exhausted
The central pool of IPv4 addresses officially ran dry on Tuesday after the Internet Assigned Numbers Authority (IANA) allocated the last remaining blocks of address space.
APNIC, which provides internet addressing services to the Asia Pacific region, received two /8s (33 million addresses) on Tuesday in a move that triggered the immediate distribution of the last five /8s to Regional Internet Registries. ISPs and businesses are rapidly burning through any IPv4 addresses APNIC makes available, so organisations in the region are expected to be among the first to feel the effects of IPv4 exhaustion.
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump