Configure OSPF Authentication MD5 & Plaintext Cisco Router Setup Guide CCNA LAB | Quick Guide

Описание: 🔐 *Secure Your OSPF Network!* Learn how to configure OSPF MD5 authentication step-by-step on Cisco routers in this hands-on tutorial. Protecting your routing updates from unauthorized access and ensuring data integrity is crucial for any robust network.

In this video, we'll walk you through the essential commands and verification steps to implement OSPF MD5 authentication across your network, specifically within Area 0. You'll see exactly how to secure your OSPF neighbors and prevent common routing protocol vulnerabilities.

*What You'll Learn in This Video:*
Understanding the importance of OSPF authentication.
Configuring OSPF MD5 authentication for an area (Area 0 example).
Setting up MD5 keys on router interfaces.
Verifying OSPF authentication status and end-to-end connectivity.

*🚨 Commands Used & Key Steps:*

Part 1: Configure OSPF MD5 Authentication
Step 1: Test connectivity. All devices should be able to ping all other IP addresses.
Step 2: Configure OSPF MD5 authentication for all the routers in area 0.
Configure OSPF MD5 authentication for all the routers in area 0.

R1(config)# router ospf 1

R1(config-router)# area 0 authentication message-digest

Step 3: Configure the MD5 key for all the routers in area 0.
Configure an MD5 key on the GigabitEthernet interfaces on R1, R2 and R3. Use the password MD5pa55 for key 1.

R1(config)# interface g0/0/0

R1(config-if)# ip ospf message-digest-key 1 md5 MD5pa55

Step 4: Verify configurations.
a. Verify the MD5 authentication configurations using the commands show ip ospf interface.

b. Verify end-to-end connectivit

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