[c-nsp] VRF import default route from global routing table on the Same PE with internet and NNI to a provider

[Erik Sundberg]

I am trying to figure a way to import a default route from the global routing table into a customer's VRF to provide internet access. This customer's site is on another's provider network that we interconnect with using a NNI and option b.

Our PE has MPLS L3 VPNs, NNI Link to a provider, and full internet routes.

So here is the layout

Cust---Provider1---NNI_LINK----PE----Internet


So I see three ways of doing this.

1. Configuring a Internet gateway and attach it off the PE using vlans
       Cust-Provider--NNI_LINK---PE---dot1qtrunk--InternetGateway--PE--Internet


        PE G0/0 Vlan10
                vrf CUST
                ip addr 10.1.1.2/30

        Ineternetgateway G0/0 vlan 10
                No vrf
                Ip addr 10.1.1.1/30

        Internetgateway G0/1
                Ip addr 2.2.2.2/30

        PE G0/1
                IP addr 2.2.2.1/30

2. I know the global commands won't work because that requires a dedicated "Internet Gateway Router" and the route back to the customer's CE won't work because of the NNI Link and the customer is not directly attached to our PE

3. Loopback Cable on the PE one side in the vrf and the other in the internet routing table.
        G0/0.10  MPLS VRF Interface
                Vlan 10
                Vrf cust
                Ip addr 10.1.1.2/30

        G0/1.10  Internet Routing
                Vlan 10
                Ip addr 10.1.1.1/30

If there is another way to do this let me know.


Thanks in advance.

Erik




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