ipv6: do not enable IPv6 on externally connected device
The test makes sure that NM will not re-enable IPv6 on externally
connected device when systemd-sysctl already sets the disable_ipv6
sysctl setting into 1.
Edited by Filip Pokryvka
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The test makes sure that NM will not re-enable IPv6 on externally
connected device when systemd-sysctl already sets the disable_ipv6
sysctl setting into 1.