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Bug #17075

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JW CM

Tailscale: tailscale0 loses "Tailscale" interface group after reboot, silently breaking rules

Bug #17075: Tailscale: tailscale0 loses "Tailscale" interface group after reboot, silently breaking rules

Added by John Waghorn about 24 hours ago.

Status:
New
Priority:
Normal
Assignee:
Christian McDonald
Category:
Tailscale
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Affected Version:
Affected Plus Version:
26.07
Affected Architecture:
amd64

Description

After a reboot, a service restart, or a re-auth, tailscale0 comes back up in the "tun"

  1. ifconfig tailscale0 | grep groups
    groups: tun

Any NAT rule, firewall rule or alias referencing the Tailscale interface group then
stops matching. No error and the rules still look correct in the GUI.

pfSense could ping the tailnet host fine but LAN couldn't, i would just get timeouts.

I did this workaround
ifconfig tailscale0 group Tailscale

maybe a fix: call tun_dev_add_group again after tailscale_up returns.

Ref: https://forum.netgate.com/topic/200563/ - reported here too

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