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[Tailscale] Can't connect VPS to local network? (lemmy.dbzer0.com)

submitted 6 months ago by dataprolet@lemmy.dbzer0.com to c/selfhosted@lemmy.world

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I set up Headscale and Tailscale using Docker on a VPS, which I want to use as my public IPv4 and Reverse Proxy to route incoming traffic to my local network and e. g. my home server. I also set up Tailscale using Docker on my home server and connected both to my Headscale server.
I am able to ping on Tailscale container from the other and vice versa and set up --advertise-routes=192.168.178.0/24 on my home server as well as --accept-routes on my VPS, but I can't ping local IP addresses from my VPS. What am I missing?
Both container are connected to the host network, I have opened UDP ports 41641 and 3478 on my VPS.

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[–] Shadow@lemmy.ca 2 points 6 months ago* (last edited 6 months ago) (1 children)

The tailscale client should have created an interface, but I've never used it on a box also running wg. You don't have a tailscale specific interface in ip addr show at all? That's.... odd.

Do you have a device at /dev/net/tun?

[–] dataprolet@lemmy.dbzer0.com 1 points 6 months ago

I'm not sure the Docker container is even using a tailscale interface, because there is none on my VPS or my home server.

And how do I see whether I have a device at /dev/net/tun?