# interface > RouterOS directory reference for /routing/ospf/interface. ----------- ## routing/ospf/interface **Type:** Directory dynamic disabled The OSPF network type on this interface. Note that if interface configuration does not exist, the default network type is 'ptp' on PtP interfaces and 'broadcast' on all other interfaces. - `broadcast` - Network type suitable for Ethernet and other multicast capable link layers. Elects designated router. - `nbma` - Non-Broadcast Multiple Access. Protocol packets are sent to each neighbor's unicast address. Requires manual configuration of neighbors. Elects designated router. - `ptp` - Suitable for networks that consist only of two nodes. Does not elect a designated router. - `ptmp` - Point-to-Multipoint. Easier to configure than NBMA because it requires no manual configuration of a neighbor. Does not elect a designated router. This is the most robust network type and as such suitable for wireless networks, if 'broadcast' mode does not work well enough for them - `ptp-unnumbered` - Works the same as ptp, except that the remote neighbor does not have an associated IP address to a specific PTP interface. For example, in case IP unnumbered is used on Cisco devices. - `virtual-link` - Interface for virtual link. A non-backbone area the two routers have in common over which the virtual link will be established. Virtual links can not be established through stub areas. Specifies the **router-id** of the neighbor which should be connected over the virtual link.