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This chapter is from the book Bandwidth Use

Bandwidth Use

Router(config)#interface serial 0/0/0

Enters interface configuration mode.

Router(config-if)
#bandwidth 256

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.


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
shakespeare

Identifies the key string.


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
seconds}

Optionally specifies the period during which the key can be received.


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.


NOTE The default start time and the earliest acceptable date is January 1, 1993. The default end time is an infinite period.

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