I have a problem with understanding networking. Can you help me to understand if i'm right or not and what's the best solution, please?
I'm trying to extend L2 network to the cloud and use current subnet (192.168.1.0/24) there.
Cloud provider gave physical connection with vlan(vlan 45) to my switch. I've configured tagged interface(port 24) with vlan 45 on my switch SW1 and if i configure an ip address from my subnet on the vlan interface on the SW1 - i can reach vm in the cloud from SW1 and from cloud VM i can reach SW1, but not servers that are onsite from both.
So i would like to know
Can i use different vlans(vlan 45 from provider and vlan 1 onsite) for same subnet(192.168.1.0/24) or should i use single vlan?
Can i use provider vlan 45 as a transport vlan only without routing? If i can, how would i do that?
Should i configure vlan subinterface on the router with different subnet for cloud and route traffic from cloud to site?
Here is my current topology:
My switches are HP ProCurve 2910, the cloud provider use Cisco Nexus(do not know what model).