Let's look at an example of routing information redistribution from the ODR protocol to the OSPF protocol, using the network scheme described in the main document (Figure 1).
Figure 1 - Route redistribution from ODR to OSPF |
Description | Perform a preliminary configuration of the devices, consisting of the following steps:
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BS1 |
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BS2 |
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CPE3 |
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Description | Configure the ODR protocol: Step 1: launch the ODR protocol on the radio interfaces of the BS2 and CPE3 routers. BS2 will be configured as hub, CPE3 - as spoke. Step 2: advertise the directly connected networks on the CPE3 router. | |
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BS1 | No changes are required. | |
BS2 |
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CPE3 |
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Description | Configure the OSPF protocol: Step 1: start the OSPF daemon on the BS1 and BS2 routers. Step 2: set the router IDs. The identifiers will be equal to the IP addresses assigned to the loopback interface. Step 3: define the interfaces where OSPF should be started. Step 4: redistribute the routes from the ODR protocol. Such routes have a kernel type. Step 5: redistribute the directly connected networks on the BS2 router. During route redistribution from ODR, only the routes received from the devices having a spoke role will be imported. Thus, to transmit routing information about the networks 172.16.2.0/29 and 192.168.0.2/32, it is necessary to advertise the directly connected networks on BS2. | |
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BS1 |
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BS2 |
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CPE3 | No changes are required. |
Description | Analyze the routing table on each device. The routing tables of the wireless devices contain entries about each subnet shown in the scheme. This means that the route redistribution from ODR to OSPF was performed successfully. CPE3's routing table consists of the routes to the directly connected networks and a default route. This confirms the statement about the unidirectional redistribution. | |
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BS1 |
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BS2 |
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CPE3 |
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Let's look at an example of routing information redistribution from RIP to OSPF using the scheme described in the main document (Figure 2).
Figure 2 - Route redistribution from RIP to OSPF |
Description | Perform a preliminary configuration of the devices, consisting of the following steps:
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BS1 |
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BS2 |
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CPE3 |
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Description | Configure RIP on the BS2 and CPE3 devices. Step 1: Start RIP on the routers. Step 2: define the interfaces through which routing information should exchanged. | |
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BS1 | No changes are required. | |
BS2 |
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CPE3 |
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Description | Configure the OSPF protocol: Step 1: start the OSPF daemon on the BS1 and BS2 routers. Step 2: set the routers IDs. The identifiers will be equal to the IP addresses assigned to the loopback interface. Step 3: define the interfaces where OSPF should be started. Step 4: redistribute the routes from the RIP protocol. Such routes have a "rip" type. Step 5: advertise the directly connected networks on the BS2 router to announce the route towards the loopback interface at BS1. | |
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BS1 |
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BS2 |
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CPE3 | No changes are required. |
Description | Analyze the routing table on each device. The routing tables of BS1 and BS2 are synchronized and contain entries about each subnet shown in the scheme. This means that the route redistribution from RIP to OSPF was performed successfully. CPE3's routing table consists of routes to the directly connected networks and a default route. This confirms the statement about the unidirectional redistribution. | |
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BS1 |
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BS2 |
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CPE3 |
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