Auteur : Pacôme MASSOL (pacome.massol@laposte.net)
Document mis en ligne le : 17/02/2003 - Retour à la page d'accueil.

Zebra et OSPF

La topologie est la suivante :

Cliquez sur les textes "Configuration", "État" et "Table de routage" pour voir les informations sur chaque routeur.

R1

Configuration

R1(OSPF)# show running-config

Current configuration:
!
hostname R1(OSPF)
password foo
!
!
!
interface lo
!
interface eth0
!
interface eth1
!
router ospf
network 11.0.0.0/8 area 1
network 30.0.0.0/8 area 0
!
line vty
!
end

État

R1 # telnet localhost 2604
Trying 127.0.0.1...
Connected to localhost. Escape character is '^]'.
 
Hello, this is zebra (version 0.91a).
Copyright 1996-2001 Kunihiro Ishiguro.
 
 
User Access Verification
 
Password:
R1(OSPF)> enable

R1(OSPF)# show ip ospf
 OSPF Routing Process, Router ID: 30.0.0.1
 Supports only single TOS (TOS0) routes
 This implementation conforms to RFC2328
 RFC1583Compatibility flag is disabled
 SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
 Refresh timer 10 secs
 This router is an ABR, ABR type is: Standard (RFC2328)
 Number of external LSA 0
 Number of areas attached to this router: 2
 
 Area ID: 0.0.0.0 (Backbone)
   Number of interfaces in this area: Total: 1, Active: 1
   Number of fully adjacent neighbors in this area: 1
   Area has no authentication
   SPF algorithm executed 9 times
   Number of LSA 9
 
 Area ID: 0.0.0.1
   Shortcutting mode: Default, S-bit consensus: no
   Number of interfaces in this area: Total: 1, Active: 1
   Number of fully adjacent neighbors in this area: 1
   Area has no authentication
   Number of full virtual adjacencies going through this area: 0
   SPF algorithm executed 10 times
   Number of LSA 9

R1(OSPF)# show ip ospf interface
lo is up, line protocol is up
  OSPF not enabled on this interface
eth0 is up, line protocol is up
  Internet Address 30.0.0.1/8, Area 0.0.0.0
  Router ID 30.0.0.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State DR, Priority 1
  Designated Router (ID) 30.0.0.1, Interface Address 30.0.0.1
  Backup Designated Router (ID) 30.0.0.2, Interface Address 30.0.0.2
  Timer intarvals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:10
  Neighbor Count is 1, Adjacent neighbor count is 1
eth1 is up, line protocol is up
  Internet Address 11.0.0.1/8, Area 0.0.0.1
  Router ID 30.0.0.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State Backup, Priority 1
  Designated Router (ID) 12.0.0.1, Interface Address 11.0.0.2
  Backup Designated Router (ID) 30.0.0.1, Interface Address 11.0.0.1
  Timer intarvals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:01
  Neighbor Count is 1, Adjacent neighbor count is 1

R1(OSPF)# show ip ospf database

       OSPF Router with ID (30.0.0.1)
                Router Link States (Area 0.0.0.0)

                Net Link States (Area 0.0.0.0)

                 Summary Link States (Area 0.0.0.0) 

                 Router Link States (Area 0.0.0.1)

                 Net Link States (Area 0.0.0.1) 

                 Summary Link States (Area 0.0.0.1) 

R1(OSPF)# show ip ospf route

============ OSPF network routing table ============

============ OSPF router routing table =============

============ OSPF external routing table ===========

R1(OSPF)# show ip ospf neighbor

Table de routage

R1(OSPF)# R1(Zebra)> show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF,
       B - BGP, > - selected route, * - FIB route

O   11.0.0.0/8 [110/10] is directly connected, eth1, 00:14:51
C>* 11.0.0.0/8 is directly connected, eth1
O>* 12.0.0.0/8 [110/20] via 11.0.0.2, eth1, 00:14:11
O>* 21.0.0.0/8 [110/20] via 30.0.0.2, eth0, 00:13:21
O>* 22.0.0.0/8 [110/30] via 30.0.0.2, eth0, 00:12:19
O   30.0.0.0/8 [110/10] is directly connected, eth0, 00:14:41
C>* 30.0.0.0/8 is directly connected, eth0
C>* 127.0.0.0/8 is directly connected, lo
O>* 172.18.0.0/24 [110/40] via 30.0.0.2, eth0, 00:10:51
O>* 192.168.3.0/24 [110/30] via 11.0.0.2, eth1, 00:14:11

R2

Configuration

R2(OSPF)# show running-config

Current configuration:
!
hostname R2(OSPF)
password foo
!
!
!
interface lo
!
interface eth0
!
interface eth1
!
router ospf
network 11.0.0.0/8 area 1
network 12.0.0.0/8 area 1
!
line vty
!
end

État

R2 # telnet localhost 2604
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

Hello, this is zebra (version 0.91a).
Copyright 1996-2001 Kunihiro Ishiguro.


User Access Verification

Password:
R2(OSPF)> enable

R2(OSPF)# show ip ospf
 OSPF Routing Process, Router ID: 12.0.0.1
 Supports only single TOS (TOS0) routes
 This implementation conforms to RFC2328
 RFC1583Compatibility flag is disabled
 SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
 Refresh timer 10 secs
 Number of external LSA 0
 Number of areas attached to this router: 1

 Area ID: 0.0.0.1
   Shortcutting mode: Default, S-bit consensus: no
   Number of interfaces in this area: Total: 2, Active: 2
   Number of fully adjacent neighbors in this area: 2
   Area has no authentication
   Number of full virtual adjacencies going through this area: 0
   SPF algorithm executed 11 times
   Number of LSA 9

R2(OSPF)# show ip ospf interface
lo is up, line protocol is up
  OSPF not enabled on this interface
eth0 is up, line protocol is up
  Internet Address 11.0.0.2/8, Area 0.0.0.1
  Router ID 12.0.0.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State DR, Priority 1
  Designated Router (ID) 12.0.0.1, Interface Address 11.0.0.2
  Backup Designated Router (ID) 30.0.0.1, Interface Address 11.0.0.1
  Timer intarvals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:02
  Neighbor Count is 1, Adjacent neighbor count is 1
eth1 is up, line protocol is up
  Internet Address 12.0.0.1/8, Area 0.0.0.1
  Router ID 12.0.0.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State Backup, Priority 1
  Designated Router (ID) 192.168.3.254, Interface Address 12.0.0.2
  Backup Designated Router (ID) 12.0.0.1, Interface Address 12.0.0.1
  Timer intarvals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:05
  Neighbor Count is 1, Adjacent neighbor count is 1

R2(OSPF)# show ip ospf database

       OSPF Router with ID (12.0.0.1)
                Router Link States (Area 0.0.0.1)

                 Net Link States (Area 0.0.0.1) 

                 Summary Link States (Area 0.0.0.1) 

R2(OSPF)# show ip ospf route

============ OSPF network routing table ============

============ OSPF router routing table =============

============ OSPF external routing table ===========

R2(OSPF)# show ip ospf neighbor

Table de routage

R2(OSPF)#

R3

Configuration

R3(OSPF)# show running-config

Current configuration:
!
hostname R3(OSPF)
password foo
!
!
!
interface lo
!
interface eth0
!
interface eth1
!
router ospf
passive-interface eth1
network 12.0.0.0/8 area 1
network 192.168.3.0/24 area 1
!
line vty
!
end

État

R3 # telnet localhost 2604
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
 
Hello, this is zebra (version 0.91a).
Copyright 1996-2001 Kunihiro Ishiguro.

User Access Verification

Password:
R3(OSPF)> enable

R3(OSPF)# show ip ospf
 OSPF Routing Process, Router ID: 192.168.3.254
 Supports only single TOS (TOS0) routes
 This implementation conforms to RFC2328
 RFC1583Compatibility flag is disabled
 SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
 Refresh timer 10 secs
 Number of external LSA 0
 Number of areas attached to this router: 1

 Area ID: 0.0.0.1
   Shortcutting mode: Default, S-bit consensus: no
   Number of interfaces in this area: Total: 2, Active: 2
   Number of fully adjacent neighbors in this area: 1
   Area has no authentication
   Number of full virtual adjacencies going through this area: 0
   SPF algorithm executed 13 times
   Number of LSA 9

R3(OSPF)# show ip ospf interface
lo is up, line protocol is up
  OSPF not enabled on this interface
eth0 is up, line protocol is up
  Internet Address 12.0.0.2/8, Area 0.0.0.1
  Router ID 192.168.3.254, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State DR, Priority 1
  Designated Router (ID) 192.168.3.254, Interface Address 12.0.0.2
  Backup Designated Router (ID) 12.0.0.1, Interface Address 12.0.0.1
  Timer intarvals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:08
  Neighbor Count is 1, Adjacent neighbor count is 1
eth1 is up, line protocol is up
  Internet Address 192.168.3.254/24, Area 0.0.0.1
  Router ID 192.168.3.254, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State DR, Priority 1
  Designated Router (ID) 192.168.3.254, Interface Address 192.168.3.254
  No backup designated router on this network
  Timer intarvals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    No Hellos (Passive interface)
  Neighbor Count is 0, Adjacent neighbor count is 0

 R3(OSPF)# show ip ospf database

       OSPF Router with ID (192.168.3.254)

                Router Link States (Area 0.0.0.1) 

                Net Link States (Area 0.0.0.1)

                Summary Link States (Area 0.0.0.1)

R3(OSPF)# show ip ospf route

============ OSPF network routing table ============

============ OSPF router routing table =============

============ OSPF external routing table ===========

R3(OSPF)# show ip ospf neighbor

Table de routage

R3(Zebra)> show ip route
Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF,
       B - BGP, > - selected route, * - FIB route

O>* 11.0.0.0/8 [110/20] via 12.0.0.1, eth0, 00:12:48
O   12.0.0.0/8 [110/10] is directly connected, eth0, 00:14:09
C>* 12.0.0.0/8 is directly connected, eth0
O>* 21.0.0.0/8 [110/40] via 12.0.0.1, eth0, 00:11:18
O>* 22.0.0.0/8 [110/50] via 12.0.0.1, eth0, 00:10:16
O>* 30.0.0.0/8 [110/30] via 12.0.0.1, eth0, 00:12:13
C>* 127.0.0.0/8 is directly connected, lo
O>* 172.18.0.0/24 [110/60] via 12.0.0.1, eth0, 00:08:48
O   192.168.3.0/24 [110/10] is directly connected, eth1, 00:14:19
C>* 192.168.3.0/24 is directly connected, eth1

R4

Configuration

R4(OSPF)# show running-config

Current configuration:
!
hostname R4(OSPF)
password foo
!
!
!
interface lo
!
interface eth0
!
interface eth1
!
router ospf
network 21.0.0.0/8 area 2
network 30.0.0.0/8 area 0
!
line vty
!
end

État

R4# telnet localhost 2604
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

Hello, this is zebra (version 0.91a).
Copyright 1996-2001 Kunihiro Ishiguro.


User Access Verification

Password:
R4(OSPF)> enable

R4(OSPF)# show ip ospf
 OSPF Routing Process, Router ID: 30.0.0.2
 Supports only single TOS (TOS0) routes
 This implementation conforms to RFC2328
 RFC1583Compatibility flag is disabled
 SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
 Refresh timer 10 secs
 This router is an ABR, ABR type is: Standard (RFC2328)
 Number of external LSA 0
 Number of areas attached to this router: 2

 Area ID: 0.0.0.0 (Backbone)
   Number of interfaces in this area: Total: 1, Active: 1
   Number of fully adjacent neighbors in this area: 1
   Area has no authentication
   SPF algorithm executed 14 times
   Number of LSA 9

 Area ID: 0.0.0.2
   Shortcutting mode: Default, S-bit consensus: no
   Number of interfaces in this area: Total: 1, Active: 1
   Number of fully adjacent neighbors in this area: 1
   Area has no authentication
   Number of full virtual adjacencies going through this area: 0
   SPF algorithm executed 12 times
   Number of LSA 9

R4(OSPF)# show ip ospf interface
lo is up, line protocol is up
  OSPF not enabled on this interface
eth0 is up, line protocol is up
  Internet Address 30.0.0.2/8, Area 0.0.0.0
  Router ID 30.0.0.2, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State Backup, Priority 1
  Designated Router (ID) 30.0.0.1, Interface Address 30.0.0.1
  Backup Designated Router (ID) 30.0.0.2, Interface Address 30.0.0.2
  Timer intarvals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:05
  Neighbor Count is 1, Adjacent neighbor count is 1
eth1 is up, line protocol is up
  Internet Address 21.0.0.1/8, Area 0.0.0.2
  Router ID 30.0.0.2, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State DR, Priority 1
  Designated Router (ID) 30.0.0.2, Interface Address 21.0.0.1
  Backup Designated Router (ID) 22.0.0.1, Interface Address 21.0.0.2
  Timer intarvals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:03
  Neighbor Count is 1, Adjacent neighbor count is 1

R4(OSPF)# show ip ospf database

       OSPF Router with ID (30.0.0.2)
                Router Link States (Area 0.0.0.0)

                Net Link States (Area 0.0.0.0)

                Summary Link States (Area 0.0.0.0)

                Router Link States (Area 0.0.0.2)

                Net Link States (Area 0.0.0.2)

                Summary Link States (Area 0.0.0.2)

R4(OSPF)# show ip ospf route

============ OSPF network routing table ============

============ OSPF router routing table =============

============ OSPF external routing table ===========

R4(OSPF)# show ip ospf neighbor

Table de routage

R4(OSPF)#

R5

Configuration

R5(OSPF)# show running-config

Current configuration:
!
hostname R5(OSPF)
password foo
!
!
!
interface lo
!
interface eth0
!
interface eth1
!
router ospf
network 21.0.0.0/8 area 2
network 22.0.0.0/8 area 2
!
line vty
!
end

État

R5 # telnet localhost 2604
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.

Hello, this is zebra (version 0.91a).
Copyright 1996-2001 Kunihiro Ishiguro.


User Access Verification

Password:
R5(OSPF)> enable

R5(OSPF)# show ip ospf
 OSPF Routing Process, Router ID: 22.0.0.1
 Supports only single TOS (TOS0) routes
 This implementation conforms to RFC2328
 RFC1583Compatibility flag is disabled
 SPF schedule delay 5 secs, Hold time between two SPFs 10 secs
 Refresh timer 10 secs
 Number of external LSA 0
 Number of areas attached to this router: 1

 Area ID: 0.0.0.2
   Shortcutting mode: Default, S-bit consensus: no
   Number of interfaces in this area: Total: 2, Active: 2
   Number of fully adjacent neighbors in this area: 2
   Area has no authentication
   Number of full virtual adjacencies going through this area: 0
   SPF algorithm executed 10 times
   Number of LSA 9

R5(OSPF)# show ip ospf interface
lo is up, line protocol is up
  OSPF not enabled on this interface
eth0 is up, line protocol is up
  Internet Address 21.0.0.2/8, Area 0.0.0.2
  Router ID 22.0.0.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State Backup, Priority 1
  Designated Router (ID) 30.0.0.2, Interface Address 21.0.0.1
  Backup Designated Router (ID) 22.0.0.1, Interface Address 21.0.0.2
  Timer intarvals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:10
  Neighbor Count is 1, Adjacent neighbor count is 1
eth1 is up, line protocol is up
  Internet Address 22.0.0.1/8, Area 0.0.0.2
  Router ID 22.0.0.1, Network Type BROADCAST, Cost: 10
  Transmit Delay is 1 sec, State DR, Priority 1
  Designated Router (ID) 22.0.0.1, Interface Address 22.0.0.1
  Backup Designated Router (ID) 172.18.0.254, Interface Address 22.0.0.2
  Timer intarvals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
    Hello due in 00:00:03
  Neighbor Count is 1, Adjacent neighbor count is 1

R5(OSPF)# show ip ospf database

       OSPF Router with ID (22.0.0.1)
                Router Link States (Area 0.0.0.2)

                Net Link States (Area 0.0.0.2)

                Summary Link States (Area 0.0.0.2)

R5(OSPF)# show ip ospf route

============ OSPF network routing table ============