TSHOOT (642-832): Ticket 1 – OSPF Authentication

[phanthanhphong]

1.Client is unable to ping R1’s serial interface from the client.
Problem was disable authentification on R1, check where authentication is not given under router ospf of R1. (use ipv4 Layer 3)
Configuration of R1:
interface Serial0/0/0/0
description Link to R2
ip address 10.1.1.1 255.255.255.252
ip nat inside
encapsulation frame-relay
ip ospf message-digest-key 1 md5 TSHOOT
ip ospf network point-to-point
!
router ospf 1
log-adjacency-changes
area 12 authentication message-digest
default-information originate always
!

Configuration of R2:
interface Serial0/0/0/0.12 point-to-point
ip address 10.1.1.2 255.255.255.252
ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 TSHOOT
!

Answer: on R1 need command “ip ospf authentication message-digest”

Ans1) R1
Ans2) IPv4 OSPF Routing
Ans3) Enable OSPF authentication on the s0/0/0 interface using the “ip ospf authentication message-digest” command.