I am looking to use my L3 switches to connect our main office to our DR site.  It looks as easy as flipping OSPF on, however, do I need to create a new VLAN for the transport?  Do I have to put the remote VLANS in both switches?  The EPL connection is a Comcast product that acts like a really long ethernet cable.  It isn't like MPLS that has addresses assigned to it.  I have the two switches connected and I can see the HQ traffic on the DR site port, but I know I need to setup something to differentiate them as the 2 networks have different addressing on them.  I have looked over the Meraki documentation, but haven't seen exactly what I am looking for.  To complicate it a tad, when the EPL link is down, we want the VPN to take over, which is how it is currently configured.  Can anyone lend some assistance?  I have an MS355 at HQ connected to an MS250 at our remote location, both on fiber sfps. ... View more