Creating a cluster using on tun0 devices

[xmichael99]

Hello all,

I've been experimenting with creating a remote cluster using tinc and openvpn, both solutions seem overly complicated.

Why not this;

device 1 (IP: 10.10.10.10)
sudo modprobe tun
sudo ip tuntap add dev tun0 mode tun
sudo ip link set dev tun0 up
sudo ip addr add 192.168.69.1/24 dev tun0
sudo ip route add 192.168.69.0/24 dev tun0
sudo ip neigh add 10.20.20.20 lladdr 00:00:00:00:00:01 dev tun0

device 2 (IP: 10.20.20.20)
sudo modprobe tun
sudo ip tuntap add dev tun0 mode tun
sudo ip link set dev tun0 up
sudo ip addr add 192.168.69.2/24 dev tun0
sudo ip route add 192.168.69.0/24 dev tun0
sudo ip neigh add 10.10.10.10 lladdr 00:00:00:00:00:01 dev tun0

Thoughts?

 

[xmichael99]

Wrapping in UDP port 12345, instead of using raw IP;

sudo modprobe tun
sudo ip tuntap add dev tun0 mode tun
sudo ip link set dev tun0 up
sudo ip addr add 192.168.69.1/24 dev tun0
sudo ip route add 192.168.69.0/24 dev tun0
sudo iptables -A INPUT -p udp --dport 12345 -j ACCEPT
sudo iptables -A FORWARD -i tun0 -j ACCEPT


sudo modprobe tun
sudo ip tuntap add dev tun0 mode tun
sudo ip link set dev tun0 up
sudo ip addr add 192.168.69.2/24 dev tun0
sudo ip route add 192.168.69.0/24 dev tun0
sudo iptables -A INPUT -p udp --dport 12345 -j ACCEPT
sudo iptables -A FORWARD -i tun0 -j ACCEPT

 

[xmichael99]

Or even this

iptunnel add gre1 mode gre local 10.10.10.10 remote 10.20.20.20 ttl 255
ip addr add 192.168.69.1/24 dev gre1
ip link set gre1 up
route add 192.168.69.0/24 gw 192.168.69.2 dev gre1

iptunnel add gre1 mode gre local 10.20.20.20 remote 10.10.10.10 ttl 255
ip addr add 192.168.69.2/24 dev gre1
ip link set gre1 up
route add 192.168.69.0/24 gw 192.168.69.1 dev gre1

 

[hugolet]

Hi,
I use Tailsacale and work pretty well.

On both machine

curl -fsSL https://pkgs.tailscale.com/stable/debian/bullseye.noarmor.gpg | tee /usr/share/keyrings/tailscale-archive-keyring.gpg >/dev/null
curl -fsSL https://pkgs.tailscale.com/stable/debian/bullseye.tailscale-keyring.list | tee /etc/apt/sources.list.d/tailscale.list
apt-get update
apt-get install tailscale
tailscale up

Connect and authorize on tailscale

Create Network on proxmox:
Linux VLAN (tailsacale IP/24) with Vlan raw device = your Network Device : Vlantag of your choice.

Last thing on Hosts :
Add : "tailscaleIP pveX.lan pveX"on top of your host file, if not proxmox cluster would use your local ip instead...

Your good to create your cluster as usual!