[c-nsp] traceroutes via mpls network - works for on-net but not for off-net (def rt)

[Aaron]

In my network traceroute works fine for on-net (known) subnets. I can see
the mpls lsr P hops.

 

But when I traceroute to internet destinations off-net (unknown) subnets and
my packets follow default routing, I do not see my mpls lsr P hops.

 

What is the deal with traceroute being broken when following the default
route ?

 

Aaron