We are in the process of designing a DMVPN network, which will be used as a backup (over the Internet) to our MPLS WAN Network. Currently we are using EIGRP at central and remote site.
If I select EIGRP as also the routing protocol for the DMVPN, then EIGRP will consider the MPLS WAN Routes as External (Since they are being redistributed through BGP from MPLS Core into our internal Core) and then DMVPN Routes will be preferred over MPLS WAN Routes. Is this understanding correct ?
How can i correct this problem ? Using the 'distance eigrp ...' command ?
Is there any advantage using OSPF as the routing protocol in DMVPN ? This won't solve the above problem but are there any inherent advantages of OSPF over EIGRP in DMVPN Design ?
We have around 18 Sites that will be connected with no Spoke-Spoke functionality required.