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How can I implement default route along with OSPF?

Last updated on December 25, 2018

        I read something a cisco. It said OSPF and default route, defaul gateway, arent good friends...
See my architecture below : simple architecture Now in that diagram, I'd like PC1 to be able to reach PC2... To reach any black area, I told R1 to leave through C. How can make A and F communicate without A FLOOD OF static routes ? i.e I don't wanna waste the OSFP routing in the middle. What I did right now is for instance :
  • To reach C, R3 must leave by R2's black interface is is connected to.
Am I forced to use static routing if I want PC1 (A) and PC 2 (F) to communicate ? That will mean I have to configure statically all intermediate routes... Hence making OSPF uselesss except for the middle routers UPDATE After talking with Ron Maupin in the answer below, we decided to update the question. Please, click on the link below to see the complete (the real one) diagramm of the network : enter image description here Here are the configs : R1
hostname R1
!
no ip cef
no ipv6 cef
!
license udi pid CISCO1941/K9 sn FTX15242RKT
!
spanning-tree mode pvst
!
interface GigabitEthernet0/0
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0/0
 ip address 192.168.14.2 255.255.255.0
 ip ospf authentication message-digest
 ip ospf authentication-key agitel
 ip ospf message-digest-key 1 md5 agitel
 clock rate 2000000
!
interface Serial0/0/1
 ip address 192.168.15.2 255.255.255.248
 ip ospf authentication message-digest
 ip ospf authentication-key agitel
 ip ospf message-digest-key 1 md5 agitel
 clock rate 2000000
!
interface Serial0/1/0
 ip address 192.168.1.129 255.255.255.192
 clock rate 2000000
!
interface Serial0/1/1
 ip address 192.168.12.2 255.255.255.248
 ip ospf authentication message-digest
 ip ospf authentication-key agitel
 ip ospf message-digest-key 1 md5 agitel
 clock rate 2000000
!
interface Vlan1
 no ip address
 shutdown
!
router ospf 100
 log-adjacency-changes
 area 100 authentication message-digest
 redistribute static subnets 
 network 192.168.12.0 0.0.0.7 area 100
 network 192.168.15.0 0.0.0.7 area 100
 network 192.168.14.0 0.0.0.255 area 100
 network 192.168.1.128 0.0.0.63 area 100
!
ip classless
ip route 10.10.10.0 255.255.255.0 192.168.1.130 
ip route 10.100.100.0 255.255.255.0 192.168.1.130 
!
ip flow-export version 9
!
!
!
no cdp run
!

line con 0
!
line aux 0
!
line vty 0 4
 login
!
end
R2
hostname R2
!
!
no ip cef
no ipv6 cef
!
license udi pid CISCO1941/K9 sn FTX1524PDUV
!
spanning-tree mode pvst
!
interface GigabitEthernet0/0
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0/0
 ip address 192.168.2.129 255.255.255.192
 clock rate 2000000
!
interface Serial0/0/1
 no ip address
 clock rate 2000000
 shutdown
!
interface Serial0/1/0
 ip address 192.168.12.1 255.255.255.248
 ip ospf authentication message-digest
 ip ospf authentication-key agitel
 ip ospf message-digest-key 1 md5 agitel
!
interface Serial0/1/1
 ip address 192.168.23.1 255.255.255.0
 ip ospf authentication message-digest
 ip ospf authentication-key agitel
 ip ospf message-digest-key 1 md5 agitel
 clock rate 2000000
!
interface Vlan1
 no ip address
 shutdown
!
router ospf 100
 log-adjacency-changes
 area 100 authentication message-digest
 redistribute static subnets 
 network 192.168.23.0 0.0.0.255 area 100
 network 192.168.12.0 0.0.0.7 area 100
 network 192.168.2.128 0.0.0.63 area 100
!
router rip
!
ip classless
ip route 172.23.1.0 255.255.255.0 192.168.2.130 
!
ip flow-export version 9
!
no cdp run

!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
end
R3
hostname R3
!
no ip cef
no ipv6 cef
!
!
license udi pid CISCO1941/K9 sn FTX1524LCOJ
!
spanning-tree mode pvst
!
interface GigabitEthernet0/0
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0/0
 ip address 192.168.34.1 255.255.255.0
 ip ospf authentication message-digest
 ip ospf authentication-key agitel
 ip ospf message-digest-key 1 md5 agitel
!
interface Serial0/0/1
 ip address 192.168.3.129 255.255.255.192
 clock rate 2000000
!
interface Serial0/1/0
 ip address 192.168.23.2 255.255.255.0
 ip ospf authentication message-digest
 ip ospf authentication-key agitel
 ip ospf message-digest-key 1 md5 agitel
!
interface Serial0/1/1
 ip address 192.168.14.1 255.255.255.0
 ip ospf authentication message-digest
 ip ospf authentication-key agitel
 ip ospf message-digest-key 1 md5 agitel
!
interface Vlan1
 no ip address
 shutdown
!
router ospf 100
 log-adjacency-changes
 area 100 authentication message-digest
 redistribute static subnets 
 network 192.168.23.0 0.0.0.255 area 100
 network 192.168.34.0 0.0.0.255 area 100
 network 192.168.14.0 0.0.0.255 area 100
 network 192.168.3.128 0.0.0.63 area 100
!
router rip
!
ip classless
ip route 172.21.1.0 255.255.255.0 192.168.3.130 
!
ip flow-export version 9
!
!
!
no cdp run
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
end
R4
hostname R4
!
no ip cef
no ipv6 cef
!
!
license udi pid CISCO1941/K9 sn FTX1524G5F7
!
spanning-tree mode pvst
!
interface GigabitEthernet0/0
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0/0
 ip address 192.168.4.129 255.255.255.192
 clock rate 2000000
!
interface Serial0/0/1
 no ip address
 clock rate 2000000
 shutdown
!
interface Serial0/1/0
 ip address 192.168.15.1 255.255.255.248
 ip ospf authentication message-digest
 ip ospf message-digest-key 1 md5 agitel
!
interface Serial0/1/1
 ip address 192.168.34.2 255.255.255.0
 ip ospf authentication message-digest
 ip ospf authentication-key agitel
 ip ospf message-digest-key 1 md5 agitel
 clock rate 2000000
!
interface Vlan1
 no ip address
 shutdown
!
router ospf 100
 log-adjacency-changes
 area 100 authentication message-digest
 redistribute static subnets 
 network 192.168.34.0 0.0.0.255 area 100
 network 192.168.15.0 0.0.0.7 area 100
 network 192.168.4.128 0.0.0.63 area 100
!
ip classless
ip route 172.18.1.0 255.255.255.0 192.168.4.130 
!
ip flow-export version 9
!
no cdp run
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
end
SIEGE
hostname SIEGE
!
no ip cef
no ipv6 cef
!
interface FastEthernet0/0
 no ip address
 duplex auto
 speed auto
!
interface FastEthernet0/0.2
 encapsulation dot1Q 99
 ip address 10.10.10.3 255.255.255.0
!
interface FastEthernet0/0.3
 encapsulation dot1Q 100
 ip address 10.100.100.3 255.255.255.0
!
interface FastEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/0
 ip address 192.168.1.130 255.255.255.192
!
interface Serial0/1
 no ip address
 clock rate 2000000
 shutdown
!
ip classless
ip route 192.168.12.0 255.255.255.248 192.168.1.129 
ip route 192.168.15.0 255.255.255.248 192.168.1.129 
ip route 192.168.14.0 255.255.255.0 192.168.1.129 
ip route 192.168.23.0 255.255.255.0 192.168.1.129 
ip route 192.168.34.0 255.255.255.0 192.168.1.129 
ip route 192.168.2.128 255.255.255.192 192.168.1.129 
ip route 192.168.3.128 255.255.255.192 192.168.1.129 
ip route 192.168.4.128 255.255.255.192 192.168.1.129 
!
ip flow-export version 9
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
end
ALPHA
hostname ALPHA
!
no ip cef
no ipv6 cef
!
license udi pid CISCO1941/K9 sn FTX15242012
!
spanning-tree mode pvst
!
interface GigabitEthernet0/0
 ip address 172.21.1.1 255.255.255.0
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/1/0
 ip address 192.168.3.130 255.255.255.192
!
interface Serial0/1/1
 no ip address
 clock rate 2000000
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
ip classless
ip route 192.168.23.0 255.255.255.0 192.168.3.129 
ip route 192.168.2.128 255.255.255.192 192.168.3.129 
ip route 192.168.12.0 255.255.255.248 192.168.3.129 
ip route 192.168.1.128 255.255.255.192 192.168.3.129 
ip route 192.168.14.0 255.255.255.0 192.168.3.129 
ip route 192.168.34.0 255.255.255.0 192.168.3.129 
ip route 192.168.15.0 255.255.255.248 192.168.3.129 
ip route 192.168.4.128 255.255.255.192 192.168.3.129 
!
ip flow-export version 9
!
no cdp run
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
end
BETA
hostname BETA
!
no ip cef
no ipv6 cef
!
license udi pid CISCO1941/K9 sn FTX1524U7E9
!
spanning-tree mode pvst
!
interface GigabitEthernet0/0
 ip address 172.18.1.1 255.255.255.0
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/1/0
 ip address 192.168.4.130 255.255.255.192
!
interface Serial0/1/1
 no ip address
 clock rate 2000000
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
ip classless
ip route 192.168.34.0 255.255.255.0 192.168.4.129 
ip route 192.168.23.0 255.255.255.0 192.168.4.129 
ip route 192.168.14.0 255.255.255.0 192.168.4.129 
ip route 192.168.2.128 255.255.255.192 192.168.4.129 
ip route 192.168.3.128 255.255.255.192 192.168.4.129 
ip route 192.168.1.128 255.255.255.192 192.168.4.129 
ip route 192.168.12.0 255.255.255.248 192.168.4.129 
ip route 192.168.15.0 255.255.255.248 192.168.4.129 
!
ip flow-export version 9
!
no cdp run
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
end
TT
hostname TT
!
no ip cef
no ipv6 cef
!
license udi pid CISCO1941/K9 sn FTX152423MK
!
spanning-tree mode pvst
!
interface GigabitEthernet0/0
 ip address 172.23.1.1 255.255.255.0
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial0/1/0
 ip address 192.168.2.130 255.255.255.192
!
interface Serial0/1/1
 no ip address
 clock rate 2000000
 shutdown
!
interface Vlan1
 no ip address
 shutdown
!
router rip
 network 192.168.23.0
!
ip classless
ip route 192.168.12.0 255.255.255.248 192.168.2.129 
ip route 192.168.1.128 255.255.255.192 192.168.2.129 
ip route 192.168.23.0 255.255.255.0 192.168.2.129 
ip route 192.168.14.0 255.255.255.0 192.168.2.129 
ip route 192.168.34.0 255.255.255.0 192.168.2.129 
ip route 192.168.15.0 255.255.255.248 192.168.2.129 
ip route 192.168.3.128 255.255.255.192 192.168.2.129 
ip route 192.168.4.128 255.255.255.192 192.168.2.129 
!
ip flow-export version 9
!
no cdp run
!
line con 0
!
line aux 0
!
line vty 0 4
 login
!
end
UPDATE 2 : Routing tables R1 ip Routes
Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 2 subnets
S       10.10.10.0/24 [1/0] via 192.168.1.130
S       10.100.100.0/24 [1/0] via 192.168.1.130
     172.18.0.0/24 is subnetted, 1 subnets
O E2    172.18.1.0/24 [110/20] via 192.168.15.1, 01:22:45, Serial0/0/1
     172.21.0.0/24 is subnetted, 1 subnets
O E2    172.21.1.0/24 [110/20] via 192.168.14.1, 01:09:31, Serial0/0/0
     172.23.0.0/24 is subnetted, 1 subnets
O E2    172.23.1.0/24 [110/20] via 192.168.12.1, 01:21:42, Serial0/1/1
     192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.1.128/26 is directly connected, Serial0/1/0
L       192.168.1.129/32 is directly connected, Serial0/1/0
     192.168.2.0/26 is subnetted, 1 subnets
O       192.168.2.128/26 [110/128] via 192.168.12.1, 01:32:41, Serial0/1/1
     192.168.3.0/26 is subnetted, 1 subnets
O       192.168.3.128/26 [110/128] via 192.168.14.1, 01:32:51, Serial0/0/0
     192.168.4.0/26 is subnetted, 1 subnets
O       192.168.4.128/26 [110/128] via 192.168.15.1, 01:32:51, Serial0/0/1
     192.168.12.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.12.0/29 is directly connected, Serial0/1/1
L       192.168.12.2/32 is directly connected, Serial0/1/1
     192.168.14.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.14.0/24 is directly connected, Serial0/0/0
L       192.168.14.2/32 is directly connected, Serial0/0/0
     192.168.15.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.15.0/29 is directly connected, Serial0/0/1
L       192.168.15.2/32 is directly connected, Serial0/0/1
O    192.168.23.0/24 [110/128] via 192.168.12.1, 01:32:41, Serial0/1/1
                     [110/128] via 192.168.14.1, 01:32:41, Serial0/0/0
O    192.168.34.0/24 [110/128] via 192.168.14.1, 01:32:51, Serial0/0/0
                     [110/128] via 192.168.15.1, 01:32:51, Serial0/0/1
end
R2 ip route
Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 2 subnets
O E2    10.10.10.0/24 [110/20] via 192.168.12.2, 01:10:19, Serial0/1/0
O E2    10.100.100.0/24 [110/20] via 192.168.12.2, 01:10:09, Serial0/1/0
     172.18.0.0/24 is subnetted, 1 subnets
O E2    172.18.1.0/24 [110/20] via 192.168.23.2, 01:24:41, Serial0/1/1
                      [110/20] via 192.168.12.2, 01:24:41, Serial0/1/0
     172.21.0.0/24 is subnetted, 1 subnets
O E2    172.21.1.0/24 [110/20] via 192.168.23.2, 01:11:27, Serial0/1/1
     172.23.0.0/24 is subnetted, 1 subnets
S       172.23.1.0/24 [1/0] via 192.168.2.130
     192.168.1.0/26 is subnetted, 1 subnets
O       192.168.1.128/26 [110/128] via 192.168.12.2, 01:34:42, Serial0/1/0
     192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.2.128/26 is directly connected, Serial0/0/0
L       192.168.2.129/32 is directly connected, Serial0/0/0
     192.168.3.0/26 is subnetted, 1 subnets
O       192.168.3.128/26 [110/128] via 192.168.23.2, 01:34:32, Serial0/1/1
     192.168.4.0/26 is subnetted, 1 subnets
O       192.168.4.128/26 [110/192] via 192.168.23.2, 01:34:32, Serial0/1/1
                         [110/192] via 192.168.12.2, 01:34:32, Serial0/1/0
     192.168.12.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.12.0/29 is directly connected, Serial0/1/0
L       192.168.12.1/32 is directly connected, Serial0/1/0
O    192.168.14.0/24 [110/128] via 192.168.23.2, 01:34:32, Serial0/1/1
                     [110/128] via 192.168.12.2, 01:34:32, Serial0/1/0
     192.168.15.0/29 is subnetted, 1 subnets
O       192.168.15.0/29 [110/128] via 192.168.12.2, 01:34:42, Serial0/1/0
     192.168.23.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.23.0/24 is directly connected, Serial0/1/1
L       192.168.23.1/32 is directly connected, Serial0/1/1
O    192.168.34.0/24 [110/128] via 192.168.23.2, 01:34:32, Serial0/1/1
R3 ip route
Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 2 subnets
O E2    10.10.10.0/24 [110/20] via 192.168.14.2, 01:10:58, Serial0/1/1
O E2    10.100.100.0/24 [110/20] via 192.168.14.2, 01:10:48, Serial0/1/1
     172.18.0.0/24 is subnetted, 1 subnets
O E2    172.18.1.0/24 [110/20] via 192.168.34.2, 01:25:20, Serial0/0/0
     172.21.0.0/24 is subnetted, 1 subnets
S       172.21.1.0/24 [1/0] via 192.168.3.130
     172.23.0.0/24 is subnetted, 1 subnets
O E2    172.23.1.0/24 [110/20] via 192.168.23.1, 01:24:17, Serial0/1/0
     192.168.1.0/26 is subnetted, 1 subnets
O       192.168.1.128/26 [110/128] via 192.168.14.2, 01:35:21, Serial0/1/1
     192.168.2.0/26 is subnetted, 1 subnets
O       192.168.2.128/26 [110/128] via 192.168.23.1, 01:35:21, Serial0/1/0
     192.168.3.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.3.128/26 is directly connected, Serial0/0/1
L       192.168.3.129/32 is directly connected, Serial0/0/1
     192.168.4.0/26 is subnetted, 1 subnets
O       192.168.4.128/26 [110/128] via 192.168.34.2, 01:35:11, Serial0/0/0
     192.168.12.0/29 is subnetted, 1 subnets
O       192.168.12.0/29 [110/128] via 192.168.23.1, 01:35:21, Serial0/1/0
                        [110/128] via 192.168.14.2, 01:35:21, Serial0/1/1
     192.168.14.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.14.0/24 is directly connected, Serial0/1/1
L       192.168.14.1/32 is directly connected, Serial0/1/1
     192.168.15.0/29 is subnetted, 1 subnets
O       192.168.15.0/29 [110/128] via 192.168.34.2, 01:35:11, Serial0/0/0
                        [110/128] via 192.168.14.2, 01:35:11, Serial0/1/1
     192.168.23.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.23.0/24 is directly connected, Serial0/1/0
L       192.168.23.2/32 is directly connected, Serial0/1/0
     192.168.34.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.34.0/24 is directly connected, Serial0/0/0
L       192.168.34.1/32 is directly connected, Serial0/0/0
R4 ip route
Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 2 subnets
O E2    10.10.10.0/24 [110/20] via 192.168.15.2, 01:11:34, Serial0/1/0
O E2    10.100.100.0/24 [110/20] via 192.168.15.2, 01:11:24, Serial0/1/0
     172.18.0.0/24 is subnetted, 1 subnets
S       172.18.1.0/24 [1/0] via 192.168.4.130
     172.21.0.0/24 is subnetted, 1 subnets
O E2    172.21.1.0/24 [110/20] via 192.168.34.1, 01:12:43, Serial0/1/1
     172.23.0.0/24 is subnetted, 1 subnets
O E2    172.23.1.0/24 [110/20] via 192.168.34.1, 01:24:53, Serial0/1/1
                      [110/20] via 192.168.15.2, 01:24:53, Serial0/1/0
     192.168.1.0/26 is subnetted, 1 subnets
O       192.168.1.128/26 [110/128] via 192.168.15.2, 01:36:02, Serial0/1/0
     192.168.2.0/26 is subnetted, 1 subnets
O       192.168.2.128/26 [110/192] via 192.168.34.1, 01:36:02, Serial0/1/1
                         [110/192] via 192.168.15.2, 01:36:02, Serial0/1/0
     192.168.3.0/26 is subnetted, 1 subnets
O       192.168.3.128/26 [110/128] via 192.168.34.1, 01:36:02, Serial0/1/1
     192.168.4.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.4.128/26 is directly connected, Serial0/0/0
L       192.168.4.129/32 is directly connected, Serial0/0/0
     192.168.12.0/29 is subnetted, 1 subnets
O       192.168.12.0/29 [110/128] via 192.168.15.2, 01:36:02, Serial0/1/0
O    192.168.14.0/24 [110/128] via 192.168.34.1, 01:36:02, Serial0/1/1
                     [110/128] via 192.168.15.2, 01:36:02, Serial0/1/0
     192.168.15.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.15.0/29 is directly connected, Serial0/1/0
L       192.168.15.1/32 is directly connected, Serial0/1/0
O    192.168.23.0/24 [110/128] via 192.168.34.1, 01:36:02, Serial0/1/1
     192.168.34.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.34.0/24 is directly connected, Serial0/1/1
L       192.168.34.2/32 is directly connected, Serial0/1/1
SIEGE ip route
Gateway of last resort is not set

     10.0.0.0/24 is subnetted, 2 subnets
O E2    10.10.10.0/24 [110/20] via 192.168.15.2, 01:11:34, Serial0/1/0
O E2    10.100.100.0/24 [110/20] via 192.168.15.2, 01:11:24, Serial0/1/0
     172.18.0.0/24 is subnetted, 1 subnets
S       172.18.1.0/24 [1/0] via 192.168.4.130
     172.21.0.0/24 is subnetted, 1 subnets
O E2    172.21.1.0/24 [110/20] via 192.168.34.1, 01:12:43, Serial0/1/1
     172.23.0.0/24 is subnetted, 1 subnets
O E2    172.23.1.0/24 [110/20] via 192.168.34.1, 01:24:53, Serial0/1/1
                      [110/20] via 192.168.15.2, 01:24:53, Serial0/1/0
     192.168.1.0/26 is subnetted, 1 subnets
O       192.168.1.128/26 [110/128] via 192.168.15.2, 01:36:02, Serial0/1/0
     192.168.2.0/26 is subnetted, 1 subnets
O       192.168.2.128/26 [110/192] via 192.168.34.1, 01:36:02, Serial0/1/1
                         [110/192] via 192.168.15.2, 01:36:02, Serial0/1/0
     192.168.3.0/26 is subnetted, 1 subnets
O       192.168.3.128/26 [110/128] via 192.168.34.1, 01:36:02, Serial0/1/1
     192.168.4.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.4.128/26 is directly connected, Serial0/0/0
L       192.168.4.129/32 is directly connected, Serial0/0/0
     192.168.12.0/29 is subnetted, 1 subnets
O       192.168.12.0/29 [110/128] via 192.168.15.2, 01:36:02, Serial0/1/0
O    192.168.14.0/24 [110/128] via 192.168.34.1, 01:36:02, Serial0/1/1
                     [110/128] via 192.168.15.2, 01:36:02, Serial0/1/0
     192.168.15.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.15.0/29 is directly connected, Serial0/1/0
L       192.168.15.1/32 is directly connected, Serial0/1/0
O    192.168.23.0/24 [110/128] via 192.168.34.1, 01:36:02, Serial0/1/1
     192.168.34.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.34.0/24 is directly connected, Serial0/1/1
L       192.168.34.2/32 is directly connected, Serial0/1/1
ALPHA ip route
Gateway of last resort is not set

     172.21.0.0/16 is variably subnetted, 2 subnets, 2 masks
C       172.21.1.0/24 is directly connected, GigabitEthernet0/0
L       172.21.1.1/32 is directly connected, GigabitEthernet0/0
     192.168.1.0/26 is subnetted, 1 subnets
S       192.168.1.128/26 [1/0] via 192.168.3.129
     192.168.2.0/26 is subnetted, 1 subnets
S       192.168.2.128/26 [1/0] via 192.168.3.129
     192.168.3.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.3.128/26 is directly connected, Serial0/1/0
L       192.168.3.130/32 is directly connected, Serial0/1/0
     192.168.4.0/26 is subnetted, 1 subnets
S       192.168.4.128/26 [1/0] via 192.168.3.129
     192.168.12.0/29 is subnetted, 1 subnets
S       192.168.12.0/29 [1/0] via 192.168.3.129
S    192.168.14.0/24 [1/0] via 192.168.3.129
     192.168.15.0/29 is subnetted, 1 subnets
S       192.168.15.0/29 [1/0] via 192.168.3.129
S    192.168.23.0/24 [1/0] via 192.168.3.129
S    192.168.34.0/24 [1/0] via 192.168.3.129
BETA ip route
Gateway of last resort is not set

     172.18.0.0/16 is variably subnetted, 2 subnets, 2 masks
C       172.18.1.0/24 is directly connected, GigabitEthernet0/0
L       172.18.1.1/32 is directly connected, GigabitEthernet0/0
     192.168.1.0/26 is subnetted, 1 subnets
S       192.168.1.128/26 [1/0] via 192.168.4.129
     192.168.2.0/26 is subnetted, 1 subnets
S       192.168.2.128/26 [1/0] via 192.168.4.129
     192.168.3.0/26 is subnetted, 1 subnets
S       192.168.3.128/26 [1/0] via 192.168.4.129
     192.168.4.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.4.128/26 is directly connected, Serial0/1/0
L       192.168.4.130/32 is directly connected, Serial0/1/0
     192.168.12.0/29 is subnetted, 1 subnets
S       192.168.12.0/29 [1/0] via 192.168.4.129
S    192.168.14.0/24 [1/0] via 192.168.4.129
     192.168.15.0/29 is subnetted, 1 subnets
S       192.168.15.0/29 [1/0] via 192.168.4.129
S    192.168.23.0/24 [1/0] via 192.168.4.129
S    192.168.34.0/24 [1/0] via 192.168.4.129
TT ip route
Gateway of last resort is not set

     172.23.0.0/16 is variably subnetted, 2 subnets, 2 masks
C       172.23.1.0/24 is directly connected, GigabitEthernet0/0
L       172.23.1.1/32 is directly connected, GigabitEthernet0/0
     192.168.1.0/26 is subnetted, 1 subnets
S       192.168.1.128/26 [1/0] via 192.168.2.129
     192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C       192.168.2.128/26 is directly connected, Serial0/1/0
L       192.168.2.130/32 is directly connected, Serial0/1/0
     192.168.3.0/26 is subnetted, 1 subnets
S       192.168.3.128/26 [1/0] via 192.168.2.129
     192.168.4.0/26 is subnetted, 1 subnets
S       192.168.4.128/26 [1/0] via 192.168.2.129
     192.168.12.0/29 is subnetted, 1 subnets
S       192.168.12.0/29 [1/0] via 192.168.2.129
S    192.168.14.0/24 [1/0] via 192.168.2.129
     192.168.15.0/29 is subnetted, 1 subnets
S       192.168.15.0/29 [1/0] via 192.168.2.129
S    192.168.23.0/24 [1/0] via 192.168.2.129
S    192.168.34.0/24 [1/0] via 192.168.2.129

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