10. Modify the metricvalue of offset-list in EIGRP configuration experiment
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.
