Austin's SWE Notes 😭

    Open Vswitch Remotely Connect 2 Computers

    We can remotely connect 2 computer together through cloud using ovs (OpenVSwitch)

    Do the following:

    Server

    First, install openvswitch. We will use this server as a switch

    sudo apt install openvswitch-switch

    Next Add vxlan port

    *ip* link add vxlan0 type vxlan id 10

    Number 10 here is the VLAN Tagging of id 10

    sudo ovs-vsctl add-port br0 vxlan0

    Add vxlan0 to virtual bridge br0

    sudo ovs-vsctl set interface vxlan0 type=vxlan options:remote_ip=<PC1_IP> options:key=10

    Confirm with sudo ovs-vsctl show

    We do another one for vxlan1 since 1 port per computer

    sudo ovs-vsctl set interface vxlan1 type=vxlan options:remote_ip=<PC1_IP> options:key=10

    Note: the PC1_IP and PC2_IP is not the vxlan ip we assign below but rather reachable default interface that Server can talk to PC1 and PC2

    Pasted image 20250331224406.png

    PC1

    Create the vxlan interface

    sudo ip link add vxlan0 type vxlan id 10 remote <SERVER_IP> dstport 4789
sudo ip link set vxlan0 up
sudo ip addr add 192.168.3.2/24 dev vxlan0

    This will assign an abitrary ip address to vxlan0

    Confirm the setting

    ip addr show vxlan0

    PC2

    Create the vxlan interface

    sudo ip link add vxlan0 type vxlan id 10 remote <SERVER_IP> dstport 4789
sudo ip link set vxlan0 up
sudo ip addr add 192.168.3.3/24 dev vxlan0

    This will assign an abitrary ip address to vxlan0

    Confirm the setting

    ip addr show vxlan0

    Ping 2 pc

    PC1: ping 192.168.3.3
PC2: ping 192.168.3.2

    They all should work now

    ← Netlink
    Socket →