Use the Command Reference to Check Your Memory
The ENARSI 300-410 exam focuses on the practical, hands-on skills that networking professionals use. Therefore, you should be able to identify the commands needed to configure, verify, and troubleshoot the topics covered in this chapter.
This section includes the most important configuration and verification commands covered in this chapter. It might not be necessary to memorize the complete syntax of every command, but you should be able to remember the basic keywords that are needed.
To test your memory of the commands in Table 2-9, go to the companion website and download Appendix B, “Command Reference Exercises.” Fill in the missing commands in the tables based on each command description. You can check your work by downloading Appendix C, “Command Reference Exercise Answer Key,” from the companion website.
Table 2-9 Command Reference
Task |
Command Syntax |
|---|---|
Initialize EIGRP in a classic configuration. |
router eigrp as-number network network wildcard-mask |
Initialize EIGRP in a named mode configuration. |
router eigrp process-name address-family {ipv4 | ipv6} {unicast | vrf vrf-name} autonomous-system as-number network network wildcard-mask |
Define the EIGRP router ID. |
eigrp router-id router-id |
Configure an EIGRP-enabled interface to prevent neighbor adjacencies. |
Classic: (EIGRP process) passive-interface interface-id Named mode: af-interface {default | interface-id} passive-interface |
Configure a keychain for EIGRP MD5 authentication. |
key chain key-chain-name key key-number key-string password |
Configure MD5 authentication for an EIGRP interface. |
Classic: (EIGRP process) ip authentication key-chain eigrp as-number key-chain-name ip authentication mode eigrp as-number md5 Named mode: af-interface {default | interface-id} authentication key-chain eigrp key-chain-name authentication mode md5 |
Configure SHA authentication for EIGRP named mode interfaces. |
Named mode: af-interface {default | interface-id} authentication mode hmac-sha-256 password |
Modify the interface delay for an interface. |
delay tens-of-microseconds |
Modify the EIGRP K values. |
metric weights TOS K1 K2 K3 K4 K5 [K6] |
Modify the default number of EIGRP maximum paths that can be installed into the RIB. |
maximum-paths maximum-paths |
Modify the EIGRP variance multiplier for unequal-cost load balancing. |
variance multiplier |
Display the EIGRP-enabled interfaces. |
show ip eigrp interface [{interface-id [detail] | detail}] |
Display the EIGRP topology table. |
show ip eigrp topology [all-links] |
Display the configured EIGRP keychains and passwords. |
show key chain |
Display the IP routing protocol information configured on the router. |
show ip protocols |