Connectivity Guide

View text authentication
OS10(conf-if-eth1/1/1)# show configuration
!
interface ethernet1/1/1
ip address 10.10.10.2/24
no switchport
no shutdown
ip ospf 100 area 0.0.0.0
ip ospf authentication-key sample
Congure MD5 authentication
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# ip ospf message-digest-key 2 md5 sample12345
View MD5 authentication
OS10(conf-if-eth1/1/1)# show configuration
!
interface ethernet1/1/1
ip address 10.10.10.2/24
no switchport
no shutdown
ip ospf 100 area 0.0.0.0
ip ospf message-digest-key 2 md5 sample12345
Troubleshoot OSPFv2
You can troubleshoot OSPFv2 operations, and check questions for typical issues that interrupt a process.
• Is OSPF enabled globally?
• Is OSPF enabled on the interface?
• Are adjacencies established correctly?
• Are the interfaces congured for L3 correctly?
• Is the router in the correct area type?
• Are the OSPF routes included in the OSPF database?
• Are the OSPF routes included in the routing table in addition to the OSPF database?
• Are you able to ping the IPv4 address of adjacent router interface?
Troubleshooting OSPF with show commands
• View a summary of all OSPF process IDs enabled in EXEC mode.
show running-configuration ospf
• View summary information of IP routes in EXEC mode.
show ip route summary
• View summary information for the OSPF database in EXEC mode.
show ip ospf database
• View the conguration of OSPF neighbors connected to the local router in EXEC mode.
show ip ospf neighbor
• View routes that OSPF calculates in EXEC mode.
show ip ospf routes
View OSPF conguration
OS10# show running-configuration ospf
!
interface ethernet1/1/1
ip ospf 100 area 0.0.0.0
!
442
Layer 3