The document discusses configuring single-area OSPFv2 in point-to-point networks. It describes using the network command to enable OSPF on interfaces matching a network address and wildcard mask. Alternatively, OSPF can be configured directly on interfaces using the ip ospf command. Passive interfaces are used to prevent sending unnecessary routing updates on LAN links. Point-to-point networks are configured to disable DR/BDR election when only two routers connect an interface. Loopbacks can also be used as point-to-point networks.