Enterasys Networks X-Pedition XSR CLI - Manual (Page 160)

OSPF Commands
5-84 Configuring the Internet Protocol
• “VRRP Clear and Show Commands” on page 5‐197.
OSPF Commands
area authentication
This command enables/disables authentication for an OSPF area.
Syntax
area area-id authentication [message-digest]
Syntax of the “no” Form
The no form of this command removes authentication from the OSPF area specified by area‐id:
no area area-id authentication
Mode
Router configuration: XSR(config-router)#
Default
The default value is Type 0 authentication; that is, no authentication.
Example
This example enables authentication on OSPF area 10.0.0.0. interface Serial 1/1, whose address is
172.16.77.1, is part of area 10.0.0.0, so an authentication mechanism could be defined for it:
XSR(config)#interface serial 1/1
XSR(config-if<S1/1)#ip address 172.16.77.1 255.255.255.0
XSR(config-if<S1/1)#ip ospf message-digest-key 20 md5 pass1
XSR(config)#router ospf 1
XSR(config-router)#network 172.16.77.1 0.0.0.0 area 10.0.0.0
XSR(config-router)#area 10.0.0.0 authentication message-digest
area default-cost
This command sets the cost value for the default route that is sent into a stub area by an Area
Border Router (ABR). This command is restricted to ABRs attached to stub areas.
Syntax
area area-id default-cost cost
area-id OSPF area to be authenticated, expressed in decimals or IP addresses.
message-digest Enables MD5 authentication on the OSPF area indicated by area‐id
keyword
area-id The stub area expressed in decimals or IP addresses.
cost Cost value for a summary route that is sent to a stub area by default.
Valid values are 24‐bit numbers, from 0 to 16,777,215.