How to Configure Multiarea OSPF (OSPFv2 and OSPFv3)
OSPF can be deployed as a single flat area or split across multiple areas — the multiarea design covered in Types of Routers in OSPF and OSPF LSA Types. This guide walks through actually configuring a four-router, three-area OSPF topology, in both OSPFv2 (IPv4) and OSPFv3 (IPv6), with a fully consistent addressing scheme you can...
