Exam Preparation Tasks
Review All the Key Topics
Review the most important topics from this chapter, denoted with a Key Topic icon. Table 6-7 lists these key topics.
Table 6-7 Key Topics
Key Topic Element |
Description |
Page Number |
Text |
Management plane best practices |
95 |
Text |
AAA components |
98 |
Text |
Storing usernames, passwords, and access rules |
98 |
Text |
Router access authentication |
100 |
Table 6-2 |
AAA components to secure administrative and remote LAN access |
101 |
Text |
The AAA method list |
101 |
Table 6-3 |
Method list options |
101 |
Text |
Limiting the administrator by assigning a view |
103 |
Text |
Encrypted management protocols |
103 |
Text |
Using logging files |
104 |
Text |
User authentication in AAA |
108 |
Text |
Using the CLI to troubleshoot AAA for Cisco routers |
113 |
Example 6-4 |
Using debug commands |
113 |
Example 6-5 |
Creating and assigning commands to custom privilege levels |
118 |
Text |
Implementing parser views |
120 |
Example 6-7 |
Creating and working with parser views |
121 |
Example 6-9 |
Preparing for SSH |
123 |
Text |
SNMP features |
128 |
Table 6-6 |
Security models and security levels supported by Cisco IOS |
130 |
Example 6-16 |
Creating a secure bootset |
133 |
Complete the Tables and Lists from Memory
Print a copy of Appendix C, “Memory Tables,” (found on the CD) or at least the section for this chapter, and complete the tables and lists from memory. Appendix D, “Memory Tables Answer Key,” also on the CD, includes completed tables and lists so that you can check your work.
Define Key Terms
Define the following key terms from this chapter, and check your answers in the glossary:
AAA, method list, custom privilege level, parser view, SSH, syslog, SNMP, NTP, secure bootset
Command Reference to Check Your Memory
This section includes the most important configuration and EXEC commands covered in this chapter. To see how well you have memorized the commands as a side effect of your other studies, cover the left side of Table 6-8 with a piece of paper, read the descriptions on the right side, and see whether you remember the commands.
Table 6-8 Command Reference
Command |
Description |
service password-encryption |
Encrypt most plaintext passwords in the configuration. |
aaa new-model |
Enable AAA features. |
aaa authentication login default local |
Create a default method list for character mode login that will use the local database (running config) on the router or switch. |
enable view |
Enter the root parser view, from where you can create additional views. This requires that aaa new-model already be in place in the configuration. |
privilege exec level 8 show startu p-config |
Assign a show startup-config command to a custom privilege level 8. |
crypto key generate rsa |
Create the public/private key pair required for SSH. |
secure boot-image |
Secure the IOS image on flash |
aaa authentication bubba local enable |
Create an authentication method list called bubba that will use the local database first, and if the username does not exist, will require the enable secret to allow login. |
line console 0 login authentication bubba |
Apply the method list named bubba to the console port. |