I have this situation:
Remote location with 6 devices collecting data and each connected to two VPN routers. Bonding is set up for those computers and data is sent to multicast address. Each VPN router then acts as a VPN server with own connection to internet. Physical access to remote location takes long time and it is necessary to eliminate single point of failure.
On local site is multiple computers which receives the multicasted data. So I would like the whole LAN to connect to remote location via another VPN router (site to site connection) to both VPNs at the same time (automatic switch to backup connection type) In future there may me more local sites.
What I observed: 1) Is it necessary for the routers to support Spanning tree protocol since there will be rings? 2) Is it possible for multicast to go thru VPN?