NETunnelProviderProtocol configuration without server address

Hi, i am implementing NETunnelProviderProtocol but i dont need to use server address because on the system extension side is xpc communication instead of tcp/ip. When i leave serverAddress empty, tunneling is not started. It is not problem to set some default value, but i am just wondering. Thank you

NETunnelProviderProtocol configuration without server address
 
 
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