Cisco NCS 5500 Series Configuration Manuals page 72

Configure Authentication at Different Hierarchical Levels for OSPF Version 2
Example:
RP/0/RP0/CPU0:router(config-ospf)#message-digest-key 4 md5 yourkey
Specifies the MD5 authentication key for the OSPF process.
• The neighbor routers must have the same key identifier.
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 interface-path-id
Example:
RP/0/RP0/CPU0:router(config-ospf-ar)# interface TenGigE 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.
Routing Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.3.x
60
Implementing OSPF