VM to VM communication?

[aeg90]

I am wondering if it is possible to use a bridge to connect both vms together without having traffic over the lan? Like direct connection between truenas and my media server vms?

 

[UdoB]

I am wondering if it is possible to use a bridge to connect both vms together without having traffic over the lan?

Yes, absolutely!

If this is a single host you just create an "empty" bridge (e.g. "vmbr1") without a physical NIC. Give both VMs a NIC connected to this bridge, assign manually (there is no DHCP available on an isolated network!) an IP address and you are good to go

For the IP address range choose a free and unused and conflict-free network. See RFC1918 https://en.wikipedia.org/wiki/Private_network. Avoid to set a gateway - as there is none.

Good luck... and have fun!

 

[aeg90]

Yes, absolutely!

If this is a single host you just create an "empty" bridge (e.g. "vmbr1") without a physical NIC. Give both VMs a NIC connected to this bridge, assign manually (there is no DHCP available on an isolated network!) an IP address and you are good to go

For the IP address range choose a free and unused and conflict-free network. See RFC1918 https://en.wikipedia.org/wiki/Private_network. Avoid to set a gateway - as there is none.

Good luck... and have fun!

I got nfs mount working via the host bridge. Thanks!

 

[aaron]

Alternatively, the SDN simple zone can be used as well. You can then even use the host as a simple router with optional SNAT and DHCP https://pve.proxmox.com/pve-docs/pve-admin-guide.html#pvesdn_install_dhcp_ipam

If it should span multiple nodes, you will have to resort to VLANs