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prevent linux from assigning ipv6 link-local addresses #1476

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Merged
JackDoan merged 3 commits into from
Sep 9, 2025
Merged

prevent linux from assigning ipv6 link-local addresses #1476

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1adb5e4
prevent linux from assigning ipv6 link-local addresses
JackDoan Sep 9, 2025
3f18ea3
uhp it was built-in
JackDoan Sep 9, 2025
4f8885d
warn
JackDoan Sep 9, 2025
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5 changes: 5 additions & 0 deletions overlay/tun_linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -360,6 +360,11 @@ func (t *tun) Activate() error {
t.l.WithError(err).Error("Failed to set tun tx queue length")
}

const modeNone = 1
if err = netlink.LinkSetIP6AddrGenMode(link, modeNone); err != nil {
t.l.WithError(err).Error("Failed to disable link local address generation")
}

if err = t.addIPs(link); err != nil {
return err
}
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