Isolate all divisions of the company: Virtual Router (OSPF)

Topology:

R4 configuration:

IP VRF Retail
Rd 1:1
!
IP VRF Trading
Rd 2:2
!
Interface Loopback0
IP address 4.4.4.4 255.255.255.255
!
Interface Loopback1
IP VRF Forwarding Trading
IP address 20.1.1.4 255.255.255.0
IP OSPF network point-to-point
!
Interface fastethernet0/0
IP VRF Forwarding Retail
IP address 10.1.1.4 255.255.255.0
Duplex Auto
Speed auto
!
Interface FASTETHERNET0/1
No IP address
Duplex Auto
Speed auto
!
Interface fastethernet0/1.100
Encapsulation dot1q 100
IP VRF Forwarding Retail
IP address 192.168.14.4 255.255.255.0
!
Interface fastethernet0/1.200
Encapsulation dot1q 200
IP VRF Forwarding Trading
IP address 172.16.14.4 255.255.255.0
!
Router OSPF VRF Retail
Log-adjacency-changes
Network 10.1.1.0 0.0.0.255 Area 0
Network 192.168.14.0 0.0.0.255 Area 0
!
Router OSPF VRF Trading
Log-adjacency-changes
Network 20.1.1.0 0.0.0.255 Area 0
Network 172.16.14.0 0.0.0.255 Area 0

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R5 configuration:

IP VRF Retail
Rd 1:1
!
IP VRF Trading
Rd 2:2
!
Interface Loopback0
IP address 5.5.5.5 255.255.255.255
!
Interface Loopback1
IP VRF Forwarding Trading
IP address 40.1.1.5 255.255.255.0
IP OSPF network point-to-point
!
Interface fastethernet0/0
No IP address
Duplex Auto
Speed auto
!
Interface fastethernet0/0.100
Encapsulation dot1q 100
IP VRF Forwarding Retail
IP address 192.168.35.5 255.255.255.0
!
Interface fastethernet0/0.200
Encapsulation dot1q 200
IP VRF Forwarding Trading
IP address 172.16.35.5 255.255.255.0
!
Interface FASTETHERNET0/1
IP VRF Forwarding Retail
IP address 30.1.1.5 255.255.255.0
Duplex Auto
Speed auto
!
Router OSPF VRF Retail
Log-adjacency-changes
Network 30.1.1.0 0.0.0.255 Area 0
Network 192.168.35.0 0.0.0.255 Area 0
!
Router OSPF VRF Trading
Log-adjacency-changes
Network 40.1.1.0 0.0.0.255 Area 0
Network 172.16.35.0 0.0.0.255 Area 0

R1 configuration:

IP VRF Retail
Rd 100:100
Route-target Export 100:100
Route-target Import 100:100
!
IP VRF Trading
Rd 100:200
Route-target Export 100:200
Route-target Import 100:200
!
MPLS Label Range 100 199
MPLS Label Protocol LDP
!
Interface Loopback0
IP Address 1.1.1.1 255.255.255.255
!
Interface fastethernet0/0
IP address 12.1.1.1 255.255.255.0
Duplex Auto
Speed auto
MPLS IP
!
Interface FASTETHERNET0/1
No IP address
Duplex Auto
Speed auto
!
Interface fastethernet0/1.100
Encapsulation dot1q 100
IP VRF Forwarding Retail
IP address 192.168.14.1 255.255.255.0
!
Interface fastethernet0/1.200
Encapsulation dot1q 200
IP VRF Forwarding Trading
IP address 172.16.14.1 255.255.255.0
!
Router OSPF VRF Retail
Log-adjacency-changes
Redistribute BGP subnets
Network 192.168.14.0 0.0.0.255 Area 0
!
Router OSPF 210 VRF Trading
Log-adjacency-changes
Redistribute BGP subnets
Network 172.16.14.0 0.0.0.255 Area 0
!
router OSPF 100
Router-id 1.1.1.1
Log-adjacency-changes
Network 1.1.1.1 0.0.0.0 Area 0
Network 12.1.1.0 0.0.0.255 Area 0
!
Router BGP 100
BGP Router-id 1.1.1.1
No BGP default Ipv4-unicast
BGP log-neighbor-changes
Neighbor 3.3.3.3 Remote-as 100
Neighbor 3.3.3.3 Update-source Loopback0
!
Address-family vpnv4
Neighbor 3.3.3.3 Activate
Neighbor 3.3.3.3 Send-community Extended
Exit-address-family
!
address-family IPv4 VRF Trading
Redistribute OSPF 210 VRF Trading Match internal external 1 external 2 nssa-external 1 nssa-external 2
No synchronization
Exit-address-family
!
address-family IPv4 VRF Retail
Redistribute OSPF VRF Retail match internal external 1 external 2 nssa-external 1 nssa-external 2
No synchronization
Exit-address-family
!
MPLS LDP Router-id Loopback0

R2 configuration:

MPLS Label Range 200 299
MPLS Label Protocol LDP
Interface Loopback0
IP address 2.2.2.2 255.255.255.255
!
Interface fastethernet0/0
IP address 12.1.1.2 255.255.255.0
Duplex Auto
Speed auto
MPLS IP
!
Interface FASTETHERNET0/1
IP address 23.1.1.2 255.255.255.0
Duplex Auto
Speed auto
MPLS IP
!
router OSPF 100
Router-id 2.2.2.2
Log-adjacency-changes
Network 2.2.2.2 0.0.0.0 Area 0
Network 12.1.1.0 0.0.0.255 Area 0
Network 23.1.1.0 0.0.0.255 Area 0
!
MPLS LDP Router-id Loopback0