make default endpoint non reachable by default

llarp/handlers/tun.cpp

@@ -118,6 +118,17 @@ namespace llarp
           m_PublishIntroSet = false;
           LogInfo(Name(), " setting to be not reachable by default");
         }
+        else if(IsTrueValue(v))
+        {
+          m_PublishIntroSet = true;
+          LogInfo(Name(), " setting to be reachable by default");
+        }
+        else
+        {
+          LogError(Name(), " config option reachable = '", v,
+                   "' does not make sense");
+          return false;
+        }
       }
       if(k == "isolate-network" && IsTrueValue(v.c_str()))
       {

llarp/service/context.cpp

@@ -148,6 +148,8 @@ namespace llarp
     {
       Config::section_values_t configOpts;
       configOpts.push_back({"type", DefaultEndpointType()});
+      // non reachable by default as this is the default endpoint
+      configOpts.push_back({"reachable", "false"});
       {
         auto itr = opts.begin();
         while(itr != opts.end())