Multiple remote sites in the same subnet

decibel83

Hi.
I have some remote sites and a OpenVPN server.
I wish all sites to be connected through the same VPN in the same subnet, like they are in the same LAN.

Is it possible?

Thank you very much!
Bye.

maikcat

do you want layer2 or layer3 connectivity?

Michael.

decibel83

Let me to explain the situation.

I have some Proxmox nodes which host some virtual machines.
I wish some nodes and some virtual machines to be connected together in a VPN, because I want them to communicate which some internal services I don't want to expose to the Internet.

I could use some a different routed network on each Proxmox node, but thus I should manage the routing table on each virtual machine (which should have two interfaces) and I cannot migrate a virtual machine from one node to another without change the VPN network.

So I would use the same network in the whole VPN network, so I could migrate virtual machines without any pain, using a bridged VPN and another bridged interface on virtual machines (a kind of "bridged to bridged" interface) using static IP addresses or a DHCP server on the OpenVPN host (which will be synced to another host for high availability). But will it work?

Thank you very much for your help!
Bye.

maikcat

proxmox... :o

anyway...

I could use some a different routed network on each Proxmox node, but thus I should manage the routing table on each virtual machine (which should have two interfaces) and I cannot migrate a virtual machine from one node to another without change the VPN network.

not quite right...

what about if you create a lan-to-lan scenario and use proxmox hosts as vpn endpoints and simply use proxmoxes as default gateway
for your guests..?

my opinion try to avoid bridging setup... (and proxmox 🙂 )

(which will be synced to another host for high availability)

thats interesting....
DRBD protocol a? 😉

regards
Michael.

decibel83

what about if you create a lan-to-lan scenario and use proxmox hosts as vpn endpoints and simply use proxmoxes as default gateway
for your guests..?

I thought about this, but so I could not migrate a virtual machine to another host without changing the network configuration (each host will have a different network in this configuration).

my opinion try to avoid bridging setup... (and proxmox 🙂 )

I know this is OT, but why are you so angry with Proxmox? 🙂

thats interesting....
DRBD protocol a? 😉

I will do HA for OpenVPN in a second moment, but I'm thinking about DRBD + Heartbeat or a simple Rsync syncing of the OpenVPN configuration...