| accept-lifetime start-time { infinite end-time duration seconds } | Specifies the time period during which the authentication key on a key chain is received as valid. |
| auto-summary | Enables automatic summarization at network boundaries. This command is enabled by default. |
| bandwidth kilobits | Specifies the bandwidth parameter, in kilobits per second, on an interface. |
| debug eigrp packets | Displays EIGRP packet activity. |
| debug ip eigrp neighbor process-id address | Adds a filter to the debug eigrp packets command, telling it to display only IP packets for the indicated process and neighbor. |
| delay tens-of-microseconds | Specifies the delay parameter, in tens of microseconds, on an interface. |
| ip authentication key-chain eigrp process-id key-chain | Configures a key chain on an EIGRP interface and specifies the name of the key chain to be used. |
| ip authentication mode eigrp process-id md5 | Enables EIGRP authentication on an interface. |
| ip bandwidth-percent eigrp process-id percent | Configures the percentage of bandwidth used by EIGRP; the default is 50%. |
| ip hello-interval eigrp process-id seconds | Configures the EIGRP hello interval. |
| ip hold-time eigrp process-id seconds | Configures the EIGRP hold time. |
| ip summary-address eigrp process-id address mask | Configures a router to send a summary EIGRP advertisement. |
| key number | Specifies a key on a key chain. |
| key chain name-of-chain | Specifies a group of authentication keys. |
| key-string text | Specifies the authentication string, or password, used by a key. |
| metric weights tos k1 k2 k3 k4 k5 | Specifies how much weight the bandwidth, load, delay, and reliability parameters should be given in the IGRP and EIGRP metric calculations. |
| network network-number | Specifies the network address of one or more interfaces on which IGRP, EIGRP, or RIP processes should be enabled. |
| passive-interface type number | Disables the transmission of broadcast or multicast routing updates on an interface. |
| router eigrp process-id | Enables an EIGRP process. |
| send-lifetime start-time { infinite end-time duration seconds } | Specifies the time period during which the authentication key on a key chain may be sent. |
| show ip eigrp neighbors [ type number ] | Displays the EIGRP neighbor table. |
| show ip eigrp topology [ process-id [[ ip address ] mask ]] | Displays the EIGRP topology table. |
| timers active-time { minutes disabled } | Changes or disables the default 3-minute active time. |
| traffic-share { balanced min } | Specifies whether an IGRP or EIGRP routing process should use unequal -cost load-balancing or equal-cost load balancing only. |
| variance multiplier | Specifies a route multiplier by which a route metric can vary from the lowest -cost metric and still be included in an unequal-cost load-balancing group. |