Hi,
In this lab R2 has no visibility whatsoever of the internet routes as this is held in a VRF on R1 and only seen by other VRFs (R4, R6, R7).
As such filtering on a source IP in Task 8.1 is irrelevant as R2 will never see the native internet traffic (only the VPNv4 traffic between R1 and R4/R6).
Similarly asking to setup R2 as an Internet Router View Server is also pointless as all you'll ever be able to see is R2's routing table for the internal AS2456 routes and some routes to AS13 - hardly relevant here!
I think this lab should be rewritten to make R1 the Route View Server as at least that hols the internet routing table via R9 (albeit just a single route for this lab example).
Its' fine as a lab excercise but could lead to confusion over whether the internet routes should be in a VRF or not as if this was the real lab I would be seriously questioning setting up an internet VRF when later questions mention R2 being able to see Internet Routes!!
Just my two cents....