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fix: clear lingering IPv6 blackhole after exit node deselect #189

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Merged
pappz merged 2 commits into from
Aug 27, 2026
Merged

fix: clear lingering IPv6 blackhole after exit node deselect #189

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93179da
fix(tvOS): clear lingering IPv6 blackhole after exit node deselect
CicerBro Aug 10, 2026
4a53cf3
fix: use dummy IPv6 address when clearing tunnel IPv6 routes
CicerBro Aug 10, 2026
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9 changes: 9 additions & 0 deletions NetbirdNetworkExtension/PacketTunnelProviderSettingsManager.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -129,6 +129,15 @@ class PacketTunnelProviderSettingsManager {
ipv6Settings.includedRoutes = v6Routes
}
tunnelNetworkSettings.ipv6Settings = ipv6Settings
} else {
// Always assign IPv6 settings explicitly: leaving the property nil
// makes setTunnelNetworkSettings KEEP the previously applied IPv6
// config, so the ::/0 blackhole installed while an exit node was
// selected would linger after deselect and keep black-holing traffic.
let ipv6Settings = NEIPv6Settings(addresses: [Self.ipv6BlackholeAddress], networkPrefixLengths: [Self.ipv6BlackholePrefix])
// Explicitly clear any previously-applied IPv6 routes.
ipv6Settings.includedRoutes = []
tunnelNetworkSettings.ipv6Settings = ipv6Settings
}

tunnelNetworkSettings.mtu = 1280
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