IBM RackSwitch G8000 User Manual

© Copyright IBM Corp. 2011 Chapter 22. OSPF 267
Authentication
OSPF protocol exchanges can be authenticated so that only trusted routing devices
can participate. This ensures less processing on routing devices that are not
listening to OSPF packets.
OSPF allows packet authentication and uses IP multicast when sending and
receiving packets. Routers participate in routing domains based on pre-defined
passwords. N/OS supports simple password (type 1 plain text passwords) and MD5
cryptographic authentication. This type of authentication allows a password to be
configured per area.
Figure 29 shows authentication configured for area 0 with the password test. Simple
authentication is also configured for the virtual link between area 2 and area 0. Area
1 is not configured for OSPF authentication.
Figure 29. OSPF Authentication
Configuring Plain Text OSPF Passwords
To configure simple plain text OSPF passwords on the switches shown in Figure 29
use the following commands:
1. Enable OSPF authentication for Area 0 on switches 1, 2, and 3.
2. Configure a simple text password up to eight characters for each OSPF IP
interface in Area 0 on switches 1, 2, and 3.
Switch 2
Switch 1
Switch 3
Switch 4
Switch 5
key=blade
RS G8000(config-router-ospf)# area 0 authentication-type
password
RS G8000(config-router-ospf)# exit
RS G8000(config)# interface ip 1
RS G8000(config-ip-if)# ip ospf key test
RS G8000(config-ip-if)# exit
RS G8000(config)# interface ip 2
RS G8000(config-ip-if)# ip ospf key test
RS G8000(config-ip-if)# exit
RS G8000(config)# interface ip 3
RS G8000(config-ip-if)# ip ospf key test
RS G8000(config-ip-if)# exit

IBM RackSwitch G8000 Specifications

General

Brand	IBM
Model	RackSwitch G8000
Category	Network Router
Language	English