Shulou(Shulou.com)06/01 Report--

1. Experimental Topology

2. Basic configuration

R2

Interface Loopback0

Ip address 2.2.2.2 255.255.255.0

Interface Serial0/1

Ip address 23.1.1.2 255.255.255.0

Router eigrp 90

Network 23.1.1.0 0.0.0.255

Network 2.2.2.0 0.0.0.255

No auto-summary

R3

Interface Serial0/1

Ip address 23.1.1.3 255.255.255.0

Router eigrp 90

Network 23.1.1.0 0.0.0.255

No auto-summary

3. Check the metricvalue of the loop return from R3 to R2

4. Configure offset-list to modify the metricvalue

In general, we calculate and modify the metric based on the company's metric = 256* (10 ^ 7 / minimum bandwidth + delay sum / 10), but it is troublesome to modify it. We can combine the offset-list fast to the Metricvalue of a route. Next we will use offset-list to modify the metricvalue of the route from R3 to 2.2.2.0. In general, this method uses ACL to match the route, and then uses offset-list to modify the metricvalue under the EIGRP routing process.

Access-list 1 permit 2.2.2.0

Router eigrp 90

Offset-list 1 in 32 Serial0/1

As you can see, 2297856, 3232, 2297888, it's easy to change the metricvalue we want.

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