Connecting two servers without IP
We have many servers (Linux), each of them being part of a "security domain".
Currently, the architecture is done so there is no connection between 2 servers of 2 different security domains.
However, for a specific need, we need to connect two servers (directly or not) of two different security domain.
At application level, it would be to send file from one server to the other one.
Before deploying any solution, the Security Officer gave us his rules.
One is that the connection between the server SHALL NOT use IP protocol.
We expect a throughput of 10Mbps.
Less would not answer business needs.
What would you recommand?
I thought maybe using IPX/SPX between the servers and NCP filesystem.