[nsp] ISDN interface in VRF

[khiz]

  Hi Guys,
i am trying to implement an ISDN backup  from a CE to a PE , as simple as that 
i hv put the corresponding interface on the PE side into the VRF.
 IS there any special config required to put a BRI Interface into the VRF table.
The iSDN is active and i am able to see the  connected routes routes in the VRF table

sh ip ro vrf  VPN    
C       192.168.130.4/30 is directly connected, BRI3/0
     10.0.0.0/24 is subnetted, 1 subnets 

however i cant ping the CE end of the ISDN 


interface BRI3/0
 ip vrf forwarding VPN
 ip address 192.168.130.5 255.255.255.252
 no ip redirects
 no ip proxy-arp
 encapsulation ppp
 load-interval 30
 dialer idle-timeout 3600
 dialer string 21222040
 dialer-group 1
 isdn switch-type basic-net3
 no peer default ip address   


dialer-list 1 protocol ip permit  

THis is
IOS (tm) 3600 Software (C3660-P-M), Version 12.2(24), RELEASE SOFTWARE (fc1)

am i missing something??

RGds
Knms