Enable DNS requests to Tailscale from devices behind subnet router

SUPPORT QUESTIONS
1

Tailscale version

1.33.161
  tailscale commit: 79472a4a6e0510785a9cf4182f343978182844e6
  go version: go1.19.3

Your operating system & version

# cat /etc/os-release
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.16.2
PRETTY_NAME="Alpine Linux v3.16"
HOME_URL="https://alpinelinux.org/"
BUG_REPORT_URL="https://gitlab.alpinelinux.org/alpine/aports/-/issues"

Running a Tailscale subnet router inside a container for access to a specific site. I’ve been trying to see if I can route requests for DNS over the Tailscale VPN to 100.100.100.100 but haven’t had any luck so far.

Is it possible to configure devices behind a subnet router to get DNS responses from MagicDNS or do I have to create my own for split-DNS?

I can ping 100.100.100.100 from a device in the subnet, so I know my routing rules are correct and the device is online, but DNS queries to it fail.

1 Like