I have a single Juniper switch and a handful of servers. Each server has two NICs plus another NIC for IPMI (management). I would like 1 NIC to be used for public traffic, 1 NIC for private traffic, then IPMI.
For example, each server would be configured as the following:
Server 1: NIC1: XXX.XXX.XXX.2/24 (public) NIC2: 10.0.0.2/24 (private) IPMI: 192.168.0.2/24 (management) Server 2: NIC1: XXX.XXX.XXX.3/24 (public) NIC2: 10.0.0.3/24 (private) IPMI: 192.168.0.3/24 (management) etc.
Every NIC on every server would be plugged into the same Juniper switch. Would I need to create 3 VLANs to achieve this? Can a single switch handle all 3 of these without issue?
I would also need to setup a VPN (openvpn) on one of the servers so I can access 192.168.0.0/24 for IPMI from anywhere. Can VLANs talk to each other like that (i.e. the VPN is accessible from a public network (VLAN 10) but needs to access RFC1918 subnet in a different VLAN 192.168.0.0/24 (VLAN 12))?
The datacenter is providing me with a single uplink to the switch for public traffic from their core routing devices.
I hope this make sense. Please point me in the right direction. Assistance is greatly appreciated.
P.S. Purchasing additional hardware is not possible.