OS10 Enterprise Edition User Guide Release 10.4.1.0

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Sample VRF configuration

The following configuration illustrates a typical VRF set-up.
Figure 1. Setup VRF InterfacesSetup VRF Interfaces

The following example relates to the configuration shown in the above illustrations.

Router 1

ip vrf blue 
                                 ! 
                                 ip vrf orange 
                                 ! 
                                 ip vrf green 
                                 ! 
                                 interface ethernet 1/1/1 
                                 	no ip address 
                                 	no switchport 
                                 	no shutdown 
                                 ! 
                                 interface ethernet1/1/2
                                 no shutdown
                                 no switchport
                                 ip vrf forwarding blue
                                 ip address 20.0.0.1/24
                                 !
                                 interface ethernet1/1/3
                                 no shutdown
                                 no switchport
                                 ip vrf forwarding orange
                                 ip address 30.0.0.1/24
                                 !
                                 interface ethernet1/1/4
                                 no shutdown
                                 no switchport
                                 ip vrf forwarding green
                                 ip address 40.0.0.1/24
                                 ! 
                                 interface vlan128
                                 mode L3
                                 no shutdown
                                 ip vrf forwarding blue
                                 ip address 1.0.0.1/24
                                 !
                                 interface vlan192
                                 mode L3
                                 no shutdown
                                 ip vrf forwarding orange
                                 ip address 2.0.0.1/24
                                 !
                                 !
                                 interface vlan256
                                 mode L3
                                 no shutdown
                                 ip vrf forwarding green
                                 ip address 3.0.0.1/24
                                 !
                                 ip route vrf green 30.0.0.0/24 3.0.0.1
                                 
                              

Router 2

ip vrf blue 
                                 ! 
                                 ip vrf orange 
                                 ! 
                                 ip vrf green 
                                 ! 
                                 interface ethernet 1/1/1 
                                 	no ip address 
                                 	no switchport 
                                 	no shutdown 
                                 ! 
                                 interface ethernet1/1/5
                                 no shutdown
                                 no switchport
                                 ip vrf forwarding blue
                                 ip address 21.0.0.1/24
                                 !
                                 interface ethernet1/1/6
                                 no shutdown
                                 no switchport
                                 ip vrf forwarding orange
                                 ip address 31.0.0.1/24
                                 !
                                 interface ethernet1/1/7
                                 no shutdown
                                 no switchport
                                 ip vrf forwarding green
                                 ip address 41.0.0.1/24
                                 ! 
                                 interface vlan128
                                 mode L3
                                 no shutdown
                                 ip vrf forwarding blue
                                 ip address 1.0.0.1/24
                                 !
                                 interface vlan192
                                 mode L3
                                 no shutdown
                                 ip vrf forwarding orange
                                 ip address 2.0.0.1/24
                                 !
                                 interface vlan256
                                 mode L3
                                 no shutdown
                                 ip vrf forwarding green
                                 ip address 3.0.0.1/24
                                 !
                                 ip route vrf green 31.0.0.0/24 3.0.0.1
                                 
                              

The following shows the output of the show commands on Router 1.

Router 1

OS10# show ip vrf
                                 VRF-Name                          Interfaces
                                 blue                              Eth1/1/2
                                 Vlan128
                                 
                                 default                           Mgmt1/1/1
                                 Vlan1,24-25,200
                                 
                                 green                             Eth1/1/4
                                 Vlan256
                                 
                                 orange                            Eth1/1/3
                                 Vlan192
                                 
                                 OS10# show ip route vrf blue
                                 Codes: C - connected
                                 S - static
                                 B - BGP, IN - internal BGP, EX - external BGP
                                 O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
                                 N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
                                 E2 - OSPF external type 2, * - candidate default,
                                 + - summary route, > - non-active route
                                 Gateway of last resort is not set
                                 Destination                 Gateway                               Dist/Metric      Last Change
                                 ------------------------------------------------------------------------------------------------
                                 C     20.0.0.0/24         via 20.0.0.1         ethernet1/1/2       0/0              01:46:41
                                 
                                 OS10# show ip route vrf orange
                                 Codes: C - connected
                                 S - static
                                 B - BGP, IN - internal BGP, EX - external BGP
                                 O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
                                 N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
                                 E2 - OSPF external type 2, * - candidate default,
                                 + - summary route, > - non-active route
                                 Gateway of last resort is not set
                                 Destination                 Gateway                               Dist/Metric      Last Change
                                 ------------------------------------------------------------------------------------------------
                                 C     30.0.0.0/24         via 30.0.0.1         ethernet1/1/3       0/0              01:55:00
                                 
                                 OS10# show ip route vrf green
                                 Codes: C - connected
                                 S - static
                                 B - BGP, IN - internal BGP, EX - external BGP
                                 O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
                                 N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
                                 E2 - OSPF external type 2, * - candidate default,
                                 + - summary route, > - non-active route
                                 Gateway of last resort is not set
                                 Destination                 Gateway                               Dist/Metric      Last Change
                                 ------------------------------------------------------------------------------------------------
                                 C     40.0.0.0/24         via 40.0.0.1         ethernet1/1/4       0/0              02:01:15
                                 
                                 ======================================================================================
                                 
                              

The following shows the output of the show commands on Router 2.

Router 2

OS10# show ip vrf
                                 VRF-Name                          Interfaces
                                 blue                              Eth1/1/5
                                 Vlan128
                                 
                                 default                           Mgmt1/1/1
                                 Vlan1,24-25,200
                                 
                                 green                             Eth1/1/7
                                 Vlan256
                                 
                                 orange                            Eth1/1/6
                                 Vlan192
                                 
                                 OS10# show ip route vrf blue
                                 Codes: C - connected
                                 S - static
                                 B - BGP, IN - internal BGP, EX - external BGP
                                 O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
                                 N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
                                 E2 - OSPF external type 2, * - candidate default,
                                 + - summary route, > - non-active route
                                 Gateway of last resort is not set
                                 Destination                 Gateway                               Dist/Metric      Last Change
                                 ------------------------------------------------------------------------------------------------
                                 C     21.0.0.0/24         via 21.0.0.1         ethernet1/1/5       0/0              02:05:00
                                 
                                 OS10# show ip route vrf orange
                                 Codes: C - connected
                                 S - static
                                 B - BGP, IN - internal BGP, EX - external BGP
                                 O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
                                 N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
                                 E2 - OSPF external type 2, * - candidate default,
                                 + - summary route, > - non-active route
                                 Gateway of last resort is not set
                                 Destination                 Gateway                               Dist/Metric      Last Change
                                 ------------------------------------------------------------------------------------------------
                                 C     31.0.0.0/24         via 31.0.0.1         ethernet1/1/6       0/0              02:09:19
                                 
                                 OS10# show ip route vrf green
                                 Codes: C - connected
                                 S - static
                                 B - BGP, IN - internal BGP, EX - external BGP
                                 O - OSPF, IA - OSPF inter area, N1 - OSPF NSSA external type 1,
                                 N2 - OSPF NSSA external type 2, E1 - OSPF external type 1,
                                 E2 - OSPF external type 2, * - candidate default,
                                 + - summary route, > - non-active route
                                 Gateway of last resort is not set
                                 Destination                 Gateway                               Dist/Metric      Last Change
                                 ------------------------------------------------------------------------------------------------
                                 C     41.0.0.0/24         via 41.0.0.1         ethernet1/1/7       0/0              02:45:16
                                 
                                 ======================================================================================
                                 
                              

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