L2TP VPN to Data Cetner Failover options

RouterOS General
1

I finally have my vpn setup and running smoothly. I have a RB1100 at a datacenter, they have routed public ip’s and everything is working great.

I currently use static routes to route the /24 from the datacenter, through the VPN and up to the tower. All customers have a public IP now and everyone is happy.

I am getting ready to set up a 2nd link from the tower down to another location for a backup link. This link will connect to the same datacenter. I want the /24 to be rerouted in the event the fist vpn and/or backhaul drops out. That way everyone’s ip’s stay the same and no one is the wiser that the main link is out.

How do I set up failover for this? Check gateway=ping on each static route would probably work, but if the wireless backhaul goes down but the vpn is still up, then the IP’s wouldn’t reroute to the 2nd vpn. Is this a job for OSPF? If so is it a relativity easy OSPF setup? Load balancing would be nice eventually too :slight_smile:
routes3.jpg

2

OSPF is easy to deploy, fast failover and consider each complete link from the datacenter to the tower.

3

Thanks for the reply. Is there anything special I have to do in the ospf settings? Would this be considered the “backbone”? I’d like to eventually add ospf to the rest of the network as well. Should this portion be in a separate area from the rest? Any other pointers? OSPF is still pretty new to me. Gonna have to test it on the bench first for sure