- Configuring Enhanced Interior Gateway Routing Protocol (EIGRP) / EIGRP Auto-Summarization
- EIGRP Manual Summarization / Passive EIGRP Interfaces / Equal-Cost Load Balancing: Maximum Paths / Unequal-Cost Load Balancing: Variance
- Bandwidth Use / Authentication
- Verifying EIGRP / Troubleshooting EIGRP
- Configuration Example: EIGRP
Bandwidth Use
Router(config)#interface serial 0/0/0 |
Enters interface configuration mode. |
Router(config-if) |
Sets the bandwidth of this interface to 256 kilobits to allow EIGRP to make a better metric calculation. |
Router(config-if)#ip bandwidth-percent eigrp 50 100 |
Configures the percentage of bandwidth that may be used by EIGRP on an interface. 50 is the EIGRP autonomous system number. 100 is the percentage value. 100% * 256 = 256 kbps. |
Authentication
Router(config)#interface serial 0/0/0 |
Enters interface configuration mode. |
Router(config-if)#ip authentication mode eigrp 100 md5 |
Enables Message Digest 5 algorithm (MD5) authentication in EIGRP packets over the interface. |
Router(config-if)#ip authentication key-chain eigrp 100 romeo |
Enables authentication of EIGRP packets. romeo is the name of the key chain. |
Router(config-if)#exit |
Returns to global configuration mode. |
Router(config)#key chain romeo |
Identifies a key chain. The name must match the name configured in interface configuration mode above. |
Router(config-keychain)#key 1 |
Identifies the key number. |
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NOTE The range of keys is from 0 to 2147483647. The key identification numbers do not need to be consecutive. At least 1 key must be defined on a key chain. |
Router(config-keychain-key)#key-string |
Identifies the key string. |
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NOTE The string can contain from 1 to 80 uppercase and lowercase alphanumeric characters, except that the first character cannot be a number. |
Router(config-keychain-key)#accept-lifetime start-time {infinite | end-time | duration |
Optionally specifies the period during which the key can be received. |
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NOTE The default start time and the earliest acceptable date is January 1, 1993. The default end time is an infinite period. |
Router(config-keychain-key)#send-lifetime start-time {infinite | end-time | duration seconds} |
Optionally specifies the period during which the key can be sent. |
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NOTE The default start time and the earliest acceptable date is January 1, 1993. The default end time is an infinite period. |