Ok, problem solved. I had on the third party hardware, the axsguard, change the subnetmask from the remote location to x.x.x.x/24 (before it was set to /32)
This is the subnet that the remote monowall uses...
I have to connect 5 other locastions so they are all connect to each other.
Can anyone help me what ipadresses en subnetmasks I best should use?
regards,
Steven