He're you'll be toying with different OSPF authentication types and teting the results.
Configure authentication on your backbone interfaces according to the diagram below:
Red links will use a MD5 authentication check using a key id of 7 and a password of OSPFmd5KEY
Blue links will use a simple password of SECURE
Black links will not use any authentication mechanisms
Check that you still have an OSPF neighbor on each of your interfaces
There is an OSPF router in area 101.101.101.101 attached to VLAN 101
Configure your fe-0/0/1 interface with a logical interface on VLAN 101 using IP address 10.101.0./24
Your Router number is the last digit of your hostname, so J2300-3 has Router Number 3, etc.
Bring up OSPF on fe-0/0/1 on your logical interface using VLAN 101 and establish an adjacency with router at the 10.101.0.10 IP address
The moron administrator of the router at 10.101.0.10 says there is a password on his interface but he doesn't know what it is
There is an OSPF router in area 102.102.102.102 attached to VLAN 102
Configure your fe-0/0/1 interface with a logical interface on VLAN 102 using IP address 10.102.0./24
Bring up OSPF on fe-0/0/1 on your logical interface using VLAN 101 and establish an adjacency with router at the 10.102.0.10 IP address
The idiotic administrator of the router at 10.102.0.10 says he is using password IamTheGreatest. When asked what kind of password, the administrator says IamTheGreatest