So I have a server running Proxmox in a datacenter. Now I've managed to install Grommunio but I have no idea how to configure my network on the VM.
We make use of routed subnets to make sure that we can use more IP's per block. My machine has three IP's, one of which is within the Members-subnet, the other two are routed through this IP. I have this working with an OPNsense-VM which has a routed IP and I have a second routed IP which I want assign to Grommunio as I don't want to fiddle too much with reverse proxies and what not because it is email.
Right now I have these IP's (last octet is fictional);
- Members subnet 94.142.244.254/24
- 94.142.241.250/32
- 94.142.241.251/32
So both /32's are routed through the /24. This works (as in Proxmox is configured properly and had a Debian machine working on there with this IP so the route works) but I have no idea how to configure this into Grommunio. I've always used Ubuntu with Netplan and I have a Netplan-configuration I could use but of course, openSUSE works differently.
Anybody got any clue? Is this possible or should I just install a second opnSense-VM and put Grommunio behind there? I prefer to go without the extra VM if that is possible in my setup.