MD5 authentication in OSPF - Oliver-Mustoe/Oliver-Mustoe-Tech-Journal GitHub Wiki
Below details the commands that can be run on Lab 8-1B OSPF PT Activity packet tracer environment after the setup of OSPF to enable MD5 authentication:
Border router: 1 networks
enable
conf t
router ospf 1
area 0 authentication message-digest
interface GigabitEthernet 0/0
ip ospf message-digest-key 1 md5 password123
Datacenter router: 3 networks
enable
conf t
router ospf 1
area 0 authentication message-digest
interface GigabitEthernet 0/0
ip ospf message-digest-key 1 md5 password123
interface GigabitEthernet 0/2
ip ospf message-digest-key 1 md5 password123
interface GigabitEthernet 0/1
ip ospf message-digest-key 1 md5 password123
West router: 2 networks
enable
conf t
router ospf 1
area 0 authentication message-digest
interface GigabitEthernet 0/0
ip ospf message-digest-key 1 md5 password123
interface GigabitEthernet 0/1
ip ospf message-digest-key 1 md5 password123
East router: 2 networks
enable
conf t
router ospf 1
area 0 authentication message-digest
interface GigabitEthernet 0/0
ip ospf message-digest-key 1 md5 password123
interface GigabitEthernet 0/1
ip ospf message-digest-key 1 md5 password123
Can then check that it is working, takes time to set, with the following command (example output screenshot seen below, look for the message digest):
enable
show ip ospf interface
