
258 Part Two • IPv6 Protocols
table manageably small. If subnets are assigned haphazardly, they
may cause routing structures beyond the capacity of existing interior
routing protocols to handle.
Hardware Many departmental and branch level routers are quite capable
of handling typical IPv4 routing needs, but the possibility of having
very large routing tables (as just noted) could overwhelm the routers
themselves as well as the interior routing protocols.
Multihoming When an organization receives two or more IPv6 net-
work address allocations from different ISPs, they are said to be
multihomed. The goal is to have the network behave as if it is
a single ...