February-March 2002
slideset 7 -5
Mapping the IPv4 address into the DNS: address allocation
nAddress
allocation is hierarchical:
ublocks
of addresses are allocated to LIRs/ISPs
usmaller
blocks are allocated to client
uclients
will assign address blocks to end users
nRouting
is based on destinations for given address blocks
uHistorically
on 8 bit boundaries (Class A,B,C)
uClassless
Inter Domain Routing (CIDR)