11/6/2023 0 Comments Eigrp stub sim gns3 simulation![]() In case 1 and case 2,both the interfaces should be the ones used in the ospf domains? How do i know why you have used two different interfaces for two different cases. In contrast,another scenario when the link between the r2 and r3 is fasthethernet,you are using the show interface for the fast Ethernet link between r2 and r3 and not sticking to the original interfaces you used in the first scenario. In one scenario,its the interface in the OSPF domain towards r4 from where you are gathering the BW Delay and MTU statsĪnd the serial interface between r2 and r4 is also used for the BW and DElay stats. The confusion is show command you are displaying. M struggling to understand the EIGRP Redis Lab.ĭigital have presented two scenarios,one wiht serial and another with fast ether link between router 2 and router 3. Hi ZSL,are you also referring to this problem i reported: You can download the final configuration of this lab here. This command sets the Administrative Distance of EIGRP external route to 105, which is smaller than an OSPF route (110) so the Ethernet link between R2 and R3 will be preferred to the link between R2 & R4.Īfter that, the route to 172.16.100.1 is re-learned via 192.168.2.3 as an EIGRP external route.Ī traceroute command on R1 also confirms this: If we wish R2 to send traffic via the Ethernet link between R2 and R3, use this command: This link is less optimal than the Ethernet link between R2 and R3. So R2 still sends traffic to 172.16.100.1 via the serial link between R4 & R2. Now R2 (and R1) will use which route to go to 172.16.100.1? Let’s check the routing table of R2: The last thing we do is to redistribute OSPF to EIGRP on R3: R3(config-router)# redistribute eigrp 100 metric-type 1 subnets Also, R1 can now ping 172.16.100.1 successfully. Note: The routing table of R3 is still the same because R3 had all routes advertised by OSPF. Now we will redistribute OSPF to EIGRP on R2: We can see two “O E1” routes that are being redistributed into OSPF. ![]() R2(config-router)# redistribute eigrp 100 metric-type 1 subnets R4(config-router)#network 172.16.100.0 0.0.0.255 area 0Īfter finishing the initial commands above, the routing tables of each router are shown below:įirst on R2 we will redistribute routes from EIGRP to OSPF: Initial Configurations (which have not had the redistribute command yet): R1(config)#interface s0/0 You can download the initial configuration of this lab here. The best path is R1 -> R2 -> R3 -> R4 and we have to configure the routers to complete this task.) + Traffic from R1 to R4 must go through the best path (after redistribution, traffic from R1 will go R1 -> R2 -> R4 this is not the most optimal path as it must go through 2 serial links. + Redistribute from EIGRP to OSPF and vice versa. ![]() In this GNS3 lab we will learn how to redistribute from EIGRP into OSPF and vice versa.
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