vrf config for virtual interface

Unanswered Question
Aug 2nd, 2008
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Dears ,

Im trying to create MPLS VPN for my ADSL subscribers .

I'm sending the vrf config. from the radius and On the radius debugs I can see that see that configuration is sending correctly to the router , but on the router Virtual access interface not configured for vrf forwarding .

The tf:rd is configured on the router

07A8 NAS-Port-Type = Virtual

07A8 Service-Type = Framed-User

07A8 NAS-IP-Address =

07A8 Sending Code=2, Id=23 to

07A8 Profile = "ADSLPPPoE"

07A8 Cisco-AVpair = "lcp:Interface-config= ip vrf forwarding mpls-test2"

07A8 Service-Type = Framed-User

07A8 Framed-Protocol = PPP

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n.lenevez Sun, 08/03/2008 - 19:41
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Try associating a VRF loopback with the DSL VPN user:

interface loopback1

ip vrf forwarding mpls-test2

ip address


Then make sure in the AVPair it looks like this

Cisco-AVPair "lcp:interface-config=ip vrf forwarding mpls-test2\nip unnumbered loopback 1"

the \n is a carriage return

Haris P Sun, 08/03/2008 - 21:39
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Then what if I have multiple VPN's , For each I have to create a loopback interface or what ? . Is there is anyway without adding on virtual template ? . The idea is i don't want to make too many virtual template for differenet VPN services .

I created one Loopback interface and this vrf to that .



n.lenevez Sun, 08/03/2008 - 22:09
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Yes if you do it this way you will need to create multiple loopback interfaces (one for each VRF) but you can get away with only one virtual-template.


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