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Table of

...

Route redistribution from ODR to OSPF

Let's look at the 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).

Center

Figure 1 - Route redistribution scheme from ODR to OSPF

Pre-configuration

Description

Perform a devices preliminary configuration of the devices, consisting of the following steps:

Configure the device ID.
Remove the svi1 interface.
Assign IP addresses to the network interfaces, according to the scheme.
Disable switching.
Set Establish the wireless links.

BS1

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Set the device ID
system prompt BS_1

Remove the svi1 interface
ifc svi1 destroy

Assign IP addresses
ifc eth0 10.10.10.1/24
ifc rf5.0 172.16.1.1/29
ifc lo0 192.168.0.1/32

Disable switching
switch stop

SetEstablish the radio link
rf rf5.0 band 20
rf rf5.0 freq 5100

mint rf5.0 -name "BS_1"
mint rf5.0 -type master

BS2

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Set the device ID
system prompt BS_2

Remove the svi1 interface
ifc svi1 destroy

Assign IP addresses
ifc eth0 10.10.10.2/24
ifc rf5.0 172.16.2.2/29
ifc lo0 192.168.0.2/32

Disable switching
switch stop

SetEstablish the radio link
rf rf5.0 band 20
rf rf5.0 freq 5000

mint rf5.0 -name "BS_2"
mint rf5.0 -type master

CPE3

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Set the device ID
system prompt CPE_3

Remove the svi1 interface
ifc svi1 destroy

Assign IP addresses
ifc eth0 10.10.30.3/24
ifc rf5.0 172.16.2.3/29
ifc lo0 192.168.0.3/32

Disable switching
switch stop

SetEstablish the radio link
mint rf5.0 -name "CPE_3"
mint rf5.0 -type slave
mint rf5.0 prof 1 -band 20 -freq 5000 -type slave

ODR

...

configuration

Description

Configure the ODR protocol in accordance with the scheme.:

Step 1: launch the ODR protocol on the rf5.0 interfaces of the BS2 and CPE3 routers. BS2 will be configured asa as hub role, CPE3 - as a spoke.

Step 2: announce advertise the directly connected networks on the CPE3 router.

BS1

No changes are required.

BS2

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Start ODR:
mint rf5.0 -odr hub

CPE3

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Start ODR:
mint rf5.0 -odr spoke

AnnounceAdvertise the directly connected networks:
mint rf5.0 -odr spoke connected

OSPF

...

configuration

Description

Configure the OSPF protocol in accordance with the scheme.:

Step 1: start the OSPF daemon on the BS1 and BS2 routers.

Step 2: set routers 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: make redistribution of redistribute the directly connected networks on the BS2 router. During redistributing routes route redistribution from ODR, only the routes received from the devices with the 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 announce advertise the directly connected networks on BS2.

BS1

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Start OSPF:
ospf start

Set the router-id:
ospf
config
router
router-id 192.168.0.1

Start OSPF on the interfaces:
ospf
config
router
network 172.16.1.0/29 area 0.0.0.0
network 192.168.0.1/32 area 0.0.0.0
network 10.10.10.0/24 area 0.0.0.0

BS2

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Start OSPF:
ospf start

Set the router-id:
ospf
config
router
router-id 192.168.0.2

Start OSPF on the interfaces:
ospf
config
router
network 10.10.10.0/24 area 0.0.0.0

Route redistribution from ODR:
ospf
config
router
redistribute kernel

DirectlyAdvertise the directly connected networks announcement:
ospf
config
router
redistribute connected

CPE3

No changes are required.

Command output

...

analysis

Routing table

Description

Analyze the routing table on each device.

The routing tables of the wireless devices contain entries that each device has information about each subnet shown in the scheme. This means that routes the route redistribution from ODR to OSPF were made was performed successfully.

The 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.

BS1

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BS_1#1> netstat -r
Routing tables
Destination        Gateway            Flags     Refs     Use  Interface
10.10.10.0/24      link#2             UC          0        0  eth0
10.10.30.0/24      10.10.10.2         UG3         0        0  eth0
127.0.0.1          127.0.0.1          UH          3       19  lo0
172.16.1.0/29      link#3             UC          0        0  rf5.0
172.16.2.0/29      10.10.10.2         UG3         0        0  eth0
192.168.0.1        192.168.0.1        UH          0        0  lo0
192.168.0.2        10.10.10.2         UGH3        0        0  eth0
192.168.0.3        10.10.10.2         UGH3        0        0  eth0
224.0.0.0/8        127.0.0.1          UGS         1      335  lo0

BS2

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BS_2#1> netstat -r
Routing tables
Destination        Gateway            Flags     Refs     Use  Interface
10.10.10.0/24      link#2             UC          0        0  eth0
10.10.30.0/24      00:04:35:13:5e:4e  ULO         0        0  rf5.0
127.0.0.1          127.0.0.1          UH          3       27  lo0
172.16.1.0/29      10.10.10.1         UG3         0        0  eth0
172.16.2.0/29      link#3             UC          0        0  rf5.0
192.168.0.1        10.10.10.1         UGH3        0        0  eth0
192.168.0.2        192.168.0.2        UH          0        0  lo0
192.168.0.3        00:04:35:13:5e:4e  UHLO        0        0  rf5.0
224.0.0.0/8        127.0.0.1          UGS         1      167  lo0

CPE3

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CPE_3#1> netstat -r
Routing tables
Destination        Gateway            Flags     Refs     Use  Interface
mintGateway        BS_2                              rf5.0
10.10.30.0/24      link#2             UC          0        0  eth0
127.0.0.1          127.0.0.1          UH          1        0  lo0
172.16.2.0/29      link#3             UC          0        0  rf5.0
192.168.0.3        192.168.0.3        UH          0        0  lo0
224.0.0.0/8        127.0.0.1          UGS         0        0  lo0

...

Route redistribution from RIP to OSPF

Let's look at the an example of routing information redistribution from RIP to OSPF using the scheme described in the main document (Figure 2).

Center

Figure 2 - Scheme of the routes Route redistribution from RIP to OSPF

Pre-configuration

Description

Perform a devices preliminary configuration of the devices, consisting of the following steps:

Configure the device ID.
Remove the svi1 interface.
Assign IP addresses to the network interfaces, according to the scheme.
Disable switching.
Set Establish the wireless links.

BS1

BS2

Code Block

language	text
theme	Emacs

Set the device ID
system prompt BS_1

Remove the svi1 interface
ifc svi1 destroy

Assign IP addresses
ifc eth0 10.10.10.1/24
ifc rf5.0 172.16.1.1/29
ifc lo0 192.168.0.1/32

Disable switching
switch stop

Set

Establish the radio link
rf rf5.0 band 20
rf rf5.0 freq 5100

mint rf5.0 -name "BS_1"
mint rf5.0 -type master

BS2

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theme	Emacs

Set the device ID
system prompt BS_2

Remove the svi1 interface
ifc svi1 destroy

Assign IP addresses
ifc eth0 10.10.10.2/24
ifc rf5.0 172.16.2.2/29
ifc lo0 192.168.0.2/32

Disable switching
switch stop

SetEstablish the radio link
rf rf5.0 band 20
rf rf5.0 freq 5000

mint rf5.0 -name "BS_2"
mint rf5.0 -type master

CPE3

Code Block

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theme	Emacs

Set the device ID
system prompt CPE_3

Remove the svi1 interface
ifc svi1 destroy

Assign IP addresses
ifc eth0 10.10.30.3/24
ifc rf5.0 172.16.2.3/29
ifc lo0 192.168.0.3/32

Disable switching
switch stop

SetEstablish the radio link
mint rf5.0 -name "CPE_3"
mint rf5.0 -type slave
mint rf5.0 prof 1 -band 20 -freq 5000 -type slave

RIP configuration

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.

BS1

No changes are required.

BS2

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Start RIP:
arip start

Start RIP on the interfaces:
arip
config
router
network 172.16.2.0/29

CPE3

Code Block

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theme	Emacs

Start RIP:
arip start

Start RIP on the interfaces:
arip
config
router
network 10.10.30.0/24
network 172.16.2.0/29
network 192.168.0.3/32

OSPF protocol configuration

Description

Configure the OSPF protocol in accordance with the scheme.:

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: make announcement of advertise the directly connected networks on the BS2 router to announce the route to towards the BS2 loopback interface at BS1.

BS1

Code Block

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theme	Emacs

Start OSPF:
ospf start

Set the router-id:
ospf
config
router
router-id 192.168.0.1

Start OSPF on the interfaces:
ospf
config
router
network 172.16.1.0/29 area 0.0.0.0
network 192.168.0.1/32 area 0.0.0.0
network 10.10.10.0/24 area 0.0.0.0

BS2

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Start OSPF:
ospf start

Set the router-id:
ospf
config
router
router-id 192.168.0.2

Start OSPF on the interfaces:
ospf
config
router
network 10.10.10.0/24 area 0.0.0.0

Route redistribution from RIP:
ospf
config
router
redistribute rip

DirectlyAdvertise the directly connected networks announcement:
ospf
config
router
redistribute connected

CPE3

No changes are required.

Command output

...

analysis

Routing table

Description

Analyze the routing table on each device.

The routing tables of BS1 and BS2 are synchronized and contain entries that each device has information about each subnet shown in the scheme. This means that routes the route redistribution from RIP to OSPF were made was performed successfully.

The CPE3's routing table consists of routes to the directly connected networks and a default route. This confirms the statement about the unidirectional redistribution.

BS1

Code Block

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BS_1#1> netstat -r
Routing tables
Destination        Gateway            Flags     Refs     Use  Interface
10.10.10.0/24      link#2             UC          0        0  eth0
10.10.30.0/24      10.10.10.2         UG3         0        0  eth0
127.0.0.1          127.0.0.1          UH          3       35  lo0
172.16.1.0/29      link#3             UC          0        0  rf5.0
172.16.2.0/29      10.10.10.2         UG3         0        0  eth0
192.168.0.1        192.168.0.1        UH          0        0  lo0
192.168.0.2        10.10.10.2         UGH3        0        0  eth0
192.168.0.3        10.10.10.2         UGH3        0        0  eth0
224.0.0.0/8        127.0.0.1          UGS         1      862  lo

BS2

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BS_2#1> netstat -r
Routing tables
Destination        Gateway            Flags     Refs     Use  Interface
10.10.10.0/24      link#2             UC          0        0  eth0
10.10.30.0/24      172.16.2.3         UG3         0        0  rf5.0
127.0.0.1          127.0.0.1          UH          5       60  lo0
172.16.1.0/29      10.10.10.1         UG3         0        0  eth0
172.16.2.0/29      link#3             UC          0        0  rf5.0
192.168.0.1        10.10.10.1         UGH3        0        0  eth0
192.168.0.2        192.168.0.2        UH          0        0  lo0
192.168.0.3        172.16.2.3         UGH3        0        0  rf5.0
224.0.0.0/8        127.0.0.1          UGS         1      462  lo

CPE3

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AS_3#1> netstat -r
Routing tables
Destination        Gateway            Flags     Refs     Use  Interface
10.10.30.0/24      link#2             UC          0        0  eth0
127.0.0.1          127.0.0.1          UH          3       60  lo0
172.16.2.0/29      link#3             UC          0        0  rf5.0
192.168.0.3        192.168.0.3        UH          0        0  lo0
224.0.0.0/8        127.0.0.1          UGS         0       91  lo

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Versions Compared

Old Version 6

New Version 7

Key

Table of

contents

Route redistribution from ODR to OSPF

Pre-configuration

ODR

configuration

OSPF

configuration

Command output

analysis

Routing table

Route redistribution from RIP to OSPF

Pre-configuration

RIP configuration

OSPF protocol configuration

Command output

analysis

Routing table

Additional materials

Webinars

Other