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Configuring the IGP Outside the VRF Context

The RIP and OSPF protocols also enable you to specify a VRF and configure the protocol without actually entering the VRF context.

For example, for OSPF you might issue the following command and then complete OSPF configuration tasks for VRF A:



host1(config)#router ospf 100 vrf vrfa

For RIP, you create the RIP process, specify the address family for the VRF, and specify redistribution of BGP routes for VRF A:



host1(config)#router rip 100 

host1(config-router)#address-family ipv4 vrf
vrfa 

host1(config-router-af)#redistribute bgp

At this point you proceed with RIP configuration for the VRF. For information about configuring IS-IS, OSPF, or RIP as the IGP, see the JUNOSe IP, IPv6, and IGP Configuration Guide. For information about configuring BGP as the IGP, see Configuring BGP Routing .

virtual-router

Use to access a VRF to configure it with an IGP to learn routes from a CE router.
To access the VRF from its VR context (in this example, the default VR):host1(config)#virtual-router :vrfsouthie host1:default:southie(config)#
To access the VRF from the context of a different VR:host1(config)#virtual-router boston:southie host1:boston:southie(config)#
You must use the no ip vrf command to remove a VRF. Issuing a no version of this command (no virtual-router : vrfName or no virtual-router vrName : vrfName) that specifies an existing VRF only displays the error message:“ Cannot delete a VRF with this command”
See virtual-router.

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