Recommendation for OOB management via IP

Hello!

My work place is looking for an OOB management over IP. We have Lantronix KVM in our Datacenter with nearly 100% uptime and Lantronix SLC-8/16/48 ports with 2 NICs deployed across various MDFs on campus and remote locations (5). On our main campus we have a parallel net, but for the remote locations we are looking to access Lantronix SLCs' via the second NIC card using IP based solution. Can you kindly make suggestions. I supremely appreciate your time and inputs in advance.

What's wrong with a dsl connection doesn't need to be anything fancy just reliable enough to be up when your other stuff is down

Thanks,
Ameen Pishdadi