Specifications

Implementing OSPF on Cisco IOS XR Software
How to Implement OSPF on Cisco IOS XR Software
RC-254
Cisco IOS XR Routing Configuration Guide
Step 6
area area-id
Example:
RP/0/RP0/CPU0:router(config-ospf)# area 0
Enters area configuration mode and configures a backbone
area for the OSPF process.
Step 7
interface type instance
Example:
RP/0/RP0/CPU0:router(config-ospf-ar)# interface
POS 0/1/0/3
Enters interface configuration mode and associates one or
more interfaces to the backbone area.
• All interfaces inherit the authentication parameter
values specified for the OSPF process (Step 4, Step 5,
and Step 6).
Step 8
Repeat Step 7 for each interface that must
communicate, using the same authentication.
—
Step 9
exit
Example:
RP/0/RP0/CPU0:router(config-ospf-ar)# exit
Enters area OSPF configuration mode.
Step 10
area area-id
Example:
RP/0/RP0/CPU0:router(config-ospf)# area 1
Enters area configuration mode and configures a
nonbackbone area 1 for the OSPF process.
• The area-id argument can be entered in dotted-decimal
or IPv4 address notation, such as area 1000 or
area 0.0.3.232. However, you must choose one form or
the other for an area. We recommend using the IPv4
address notation.
Step 11
authentication [message-digest | null]
Example:
RP/0/RP0/CPU0:router(config-ospf-ar)#
authentication
Enables Type 1 (plain text) authentication that provides no
security.
• The example specifies plain text authentication (by not
specifying a keyword). Use the authentication-key
command in interface configuration mode to specify
the plain text password.
Step 12
interface type instance
Example:
RP/0/RP0/CPU0:router(config-ospf-ar)# interface
POS 0/1/0/0
Enters interface configuration mode and associates one or
more interfaces to the nonbackbone area 1 specified in
Step 7.
• All interfaces configured inherit the authentication
parameter values configured for area 1.
Step 13
Repeat Step 12 for each interface that must
communicate, using the same authentication.
—
Step 14
interface type instance
Example:
RP/0/RP0/CPU0:router(config-ospf-ar)# interface
POS 0/3/0/0
Enters interface configuration mode and associates one or
more interfaces to a different authentication type.
Command or Action Purpose