Command Line Interface
1066 1553-KDU 137 365 Uen D 2006-06-16
7.26.28 network area
This command defines an OSPF area and the interfaces that operate within this
area. Use the no form to disable OSPF for a specified interface.
Syntax
[no] network <ip-address> <netmask> area <area-id>
• ip-address - Address of the interfaces to add to the area.
• netmask - Network mask of the address range to add to the area.
• area-id - Area to which the specified address or range is
assigned. An OSPF area identifies a group of routers that share
common routing information. (The area ID must be in the form of an
IP address.)
Command Mode
Router Configuration
Default Setting
Disabled
Command Usage
• An area ID uniquely defines an OSPF broadcast area. The area ID
0.0.0.0 indicates the OSPF backbone for an autonomous system. Each
router must be connected to the backbone through a direct connection
or a virtual link.
• Set the area ID to the same value for all routers on a network segment
using the network mask to add one or more interfaces to an area.
• Be sure to include the primary address for an interface in the network
area, otherwise, OSPF will not operate for any secondary addresses
covered by the command.
• An interface can only be assigned to a single area. If an address range
is overlapped in subsequent network area commands, the router will
implement the address range for the area specified in first command,
and ignore the overlapping ranges in subsequent commands. However,
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