[j-nsp] GRE on MX platform without Multiservices DPC?

[Clarke Morledge]

Does anyone know how to configure a GRE tunnel on the MX platform withOUT 
a Multiservices DPC?

I *thought* that you can somehow "steal" resources from a line card to 
create a GRE tunnel on the MX, but I have not found an example of how to 
do that.  I do not need much bandwidth, so the Multiservices DPC is just 
overkill for this application.

I can create a "gr" interface in the config, but after commiting the 
config the "gr" interface does not show up:

[edit interface gr-1/0/1]

unit 0 {
     tunnel {
         source 192.168.0.1;
         destination 192.168.1.1;;
     }
     family inet {
         address 10.0.0.1/30;
     }
}


> show interfaces gr-1/0/1
error: device gr-1/0/1 not found

I know that you can build a "logical tunnel" to create connections within 
a router, but I need a GRE tunnel to connect to an external router.  Are 
the methods similar?

Any ideas?

Clarke Morledge
College of William and Mary
Information Technology - Network Engineering
Jones Hall (Room 18)
Williamsburg VA 23187