bridge two different network

imgmoney

Hi All,

Considering the node got the IP assigned 10.1.0.2, I want to reach the IP 10.0.0.3. It is not possible now. Can somebody help with what needs to be done?

I am trying to make Hetzner vSwitch IP addresses accessible to another range of IP addresses available in another NIC on the same machine.

eth1.4001 and eth0, need to be accessible each other.

netomx

Debian?

imgmoney

Nope, talos

RickBakkr

Why exactly do two irrelated network interfaces need to be bridged? If they are using conflicting subnets, you might want to renumber one of them.

imgmoney

This is my setup

Hetzner Cloud (control-plane) has two interfaces.

eth0 - for public IP
eth1 - LAN, Subnet 10.0.0.0/16. also, I have vSwtich from Hetzner Bare Metal

Hetzner Baremetal (workers) have three interfaces

eth0 - 10Gbit LAN, Subnet 10.1.0.0/16
eth1 - for public IP
eth1.4001 - share the same subnet from Hetzner Cloud eth1, 10.0.1.0/24

The only connectivity between the Hetzner Cloud and Hetzner Baremetal is vSwitch

My requirement is

Control Plane communicates to Workers via eth1 <-> eth1.4001
Workers to Workers via eth0 <-> eth0, and so they use 10Gbits LAN

I have made the DHCP network in Hetzner Cloud and tried the following.

       - interface: eth0
          dhcp: true
        - interface: eth1
          dhcp: true
          routes:
            - network: 10.1.0.0/16
              gateway: 10.0.0.1
              metric: 100

And in Hetzner Baremetal

         - interface: eth0
          dhcp: false
          addresses:
            - 10.1.0.2/24
          routes:
            - network: 10.1.0.0/16
              gateway: 10.1.0.1
              metric: 100
          mtu: 9000
        - interface: eth1
          dhcp: true
          vlans:
            - vlanId: 4001
              addresses:
                - 10.0.1.2/24
              mtu: 1400
              routes:
                - network: 10.0.0.0/16
                  gateway: 10.0.1.1
                  metric: 100

Currently, I am using the following settings, pods among workers' nodes cannot communicate with each other. I think a bridge won't be helpful here as bridging the eth1.4001 with eth0 will reduce the port speed to 1Gbits.

I want pods from workers to communicate using eth0