7.2.6 Packet Tracer – Configure Local AAA for Console and VTY Access Answers

7.2.6 Packet Tracer – Configure Local AAA for Console and VTY Access Answers

Addressing Table

Device Interface IP Address Subnet Mask Default Gateway Switch Port
R1 G0/1 192.168.1.1 255.255.255.0 N/A S1 F0/1
S0/0/0 (DCE) 10.1.1.2 255.255.255.252 N/A N/A
R2 G0/0 192.168.2.1 255.255.255.0 N/A S2 F0/2
S0/0/0 10.1.1.1 255.255.255.252 N/A N/A
S0/0/1 (DCE) 10.2.2.1 255.255.255.252 N/A N/A
R3 G0/1 192.168.3.1 255.255.255.0 N/A S3 F0/5
S0/0/1 10.2.2.2 255.255.255.252 N/A N/A
PC-A NIC 192.168.1.3 255.255.255.0 192.168.1.1 S1 F0/2
PC-B NIC 192.168.2.3 255.255.255.0 192.168.2.1 S2 F0/1
PC-C NIC 192.168.3.3 255.255.255.0 192.168.3.1 S3 F0/18

Objectives

  • Configure a local user account on R1 and configure authenticate on the console and vty lines using local AAA.
  • Verify local AAA authentication from the R1 console and the PC-A client.

Background / Scenario

The network topology shows routers R1, R2 and R3. Currently, all administrative security is based on knowledge of the enable secret password. Your task is to configure and test local and server-based AAA solutions.

You will create a local user account and configure local AAA on router R1 to test the console and vty logins.

  • User account: Admin1 and password admin1pa55

The routers have also been pre-configured with the following:

  • Enable secret password: ciscoenpa55
  • OSPF routing protocol with MD5 authentication using password: MD5pa55

Note: The console and vty lines have not been pre-configured.

Note: Newer IOS images use more secure encryption hashing algorithm; however, the IOS version currently supported in Packet Tracer uses MD5. Always use the most secure option available on your physical equipment.

Part 1: Configure Local AAA Authentication for Console Access on R1

Step 1: Configure a local username on R1.

Configure a username of Admin1 with a secret password of admin1pa55.

Step 2: Configure local AAA authentication for console access on R1.

Enable AAA on R1 and configure AAA authentication for the console login to use the local database.

Step 3: Configure the line console to use the defined AAA authentication method.

Enable AAA on R1 and configure AAA authentication for the console login to use the default method list.

Step 4: Verify the AAA authentication method.

Verify the user EXEC login using the local database.

Part 2: Configure Local AAA Authentication for vty Lines on R1

Step 1: Configure domain name and crypto key for use with SSH.

a. Use netsec.com as the domain name on R1.

b. Create an RSA crypto key using 1024 bits.

Step 2: Configure a named list AAA authentication method for the vty lines on R1.

Configure a named list called SSH-LOGIN to authenticate logins using local AAA.

Step 3: Configure the vty lines to use the defined AAA authentication method.

Configure the vty lines to use the named AAA method and only allow SSH for remote access.

Step 4: Verify the AAA authentication method.

Verify the SSH configuration SSH to R1 from the command prompt of PC-A.

PC> ssh –l Admin1 192.168.1.1
Open
Password: admin1pa55

Download 7.2.6 Packet Tracer – Configure Local AAA for Console and VTY Access PDF & PKA files:

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