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fix(vpn): remove deprecated endpoint-independent NAT from tun defaults #563

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Merged
garmr-ulfr merged 2 commits into from
Jul 13, 2026
+7 −6
Merged

fix(vpn): remove deprecated endpoint-independent NAT from tun defaults #563

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15a9ace
fix(vpn): remove deprecated endpoint-independent NAT from tun defaults
garmr-ulfr Jul 13, 2026
7a96ac6
enable EndpointIndependentNat only on android with gvisor and ios
garmr-ulfr Jul 13, 2026
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13 changes: 7 additions & 6 deletions vpn/boxoptions_default.go
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Original file line number Diff line number Diff line change
Expand Up @@ -45,12 +45,11 @@ func baseInbounds() []O.Inbound {
}

tunOpts := &O.TunInboundOptions{
InterfaceName: "utun225",
Address: tunAddress,
AutoRoute: true,
StrictRoute: true,
EndpointIndependentNat: true, // needed for QUIC migration and hole-punching
Stack: "system",
InterfaceName: "utun225",
Address: tunAddress,
AutoRoute: true,
StrictRoute: true,
Stack: "system",
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}
switch common.Platform {
case "android":
Expand All @@ -60,10 +59,12 @@ func baseInbounds() []O.Inbound {
slog.Warn("kernel version unknown, keeping default TUN stack")
} else if kernelBelow(kv, minAndroidSystemStackKernel) {
tunOpts.Stack = "gvisor"
tunOpts.EndpointIndependentNat = true
slog.Info("kernel below 5.10, using gvisor TUN stack", "kernel", kv)
}
case "ios":
tunOpts.Stack = ""
tunOpts.EndpointIndependentNat = true
case "linux":
tunOpts.AutoRedirect = true
}
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