Virtual Router raw image not working in ceph storage backend

I tried to create virtual router from the vrouter image I have downloaded from Opennebula marketplace and converted to raw image format because for Ceph backend most suitable format in raw image format. But the use case I am trying to implement for Virtual Router is not working. Any support is appreciated.

Versions of the related components and OS (frontend, hypervisors, VMs):
Opennebula 5.2.1
Ubuntu 14.04

Steps to reproduce:
Need to have ceph storage backend
This is virtual router setup:

virtual n/w1 (10 series)
virtual n/w2(20 series)
virtual router (20.42, 10.11)
vm192 virtual n/w1 (20.43)
vm193 virtual n/w2 (10.12)
I want to ping or connect to vm193 from vm192 (20 to 10 series). How to achieve this with raw image?

Current results:
Virtual Router Implementation not working

Expected results:

Need to ping from one network to another network with the use of virtual router.

It is working with virtual router qcow2 image but not with raw image. Any help?