I have a totally stubby area on one remote site router which I plan to integrate into a DMVPN network via DSL. Preferably, If my WAN link which is in Area 10 dies, the DMVPN tunnel act as a backup. Here's my problem, If I use backbone Area0 for the DMVPN tunnel, OSPF will prefer DMVPN instead of WAN during normal working conditions because the DMVPN link is in backbone Area0 which has preference over a non-zero area. If I use a non-zero, I come across the following problem:
My preference would be to use a new Area which is 55 but if I use it, I need to create a virtual-link for Area10-to-0. I think the virtual link is supported with a totally stubby area10 to a transit area55 and then to backbone area0. However, I hate to use virtual links. Is there a way around this?
If I use Area 10, any new DMPVN remote spoke sites will have to use the totally stubby Area 10 which I don't want