Chapter 29
| IP Routing Commands
Open Shortest Path First (OSPFv3)
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Command Mode
Router Configuration
Default Setting
Default cost: 1
Command Usage
◆ If the default cost is set to “0,” the router will not advertise a default route into
the attached stub.
Example
Console(config)#router ipv6 ospf tag 1
Console(config-router)#area 1 default-cost 1
Console(config-router)#
Related Commands
area stub (853)
area range This command summarizes the routes advertised by an Area Border Router (ABR).
Use the no form to disable this function.
Syntax
[no] area area-id range ipv6-prefix/prefix-length {advertise | not-advertise}
area-id - Identifies an area for which the routes are summarized. The area ID
can be in the form of an IPv4 address or as a four octet unsigned integer
ranging from 0-4294967295.
ipv6-prefix - A full IPv6 address including the network prefix and host
address bits.
prefix-length - A decimal value indicating how many contiguous bits (from
the left) of the address comprise the prefix (i.e., the portion of the address
to summarize).
advertise - Advertises the specified address range.
not-advertise - The summary is not sent, and the routes remain hidden
from the rest of the network.
Command Mode
Router Configuration
Default Setting
Disabled
Command Usage
◆ This command can be used to summarize intra-area routes and advertise this
information to other areas through Area Border Routers (ABRs).
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