Avoid noting nodes with obviously bad listen ports.

libp2p/Host.cpp

@@ -343,11 +343,18 @@ void Host::populateAddresses()
 #endif
 }
 
-shared_ptr<Node> Host::noteNode(NodeId _id, bi::tcp::endpoint const& _a, Origin _o, bool _ready, NodeId _oldId)
+shared_ptr<Node> Host::noteNode(NodeId _id, bi::tcp::endpoint _a, Origin _o, bool _ready, NodeId _oldId)
 {
 	RecursiveGuard l(x_peers);
 	if (_a.port() < 30300 && _a.port() > 30303)
 		cwarn << "Wierd port being recorded!";
+
+	if (_a.port() >= 49152)
+	{
+		cwarn << "Private port being recorded - setting to 0";
+		_a = bi::tcp::endpoint(_a.address(), 0);
+	}
+
 	cnote << "Node:" << _id.abridged() << _a << (_ready ? "ready" : "used") << _oldId.abridged() << (m_nodes.count(_id) ? "[have]" : "[NEW]");
 	if (!_a.port())
 	{

libp2p/Host.h

@@ -200,7 +200,7 @@ private:
 	/// This won't touch alter the blockchain.
 	virtual void doWork();
 
-	std::shared_ptr<Node> noteNode(NodeId _id, bi::tcp::endpoint const& _a, Origin _o, bool _ready, NodeId _oldId = h256());
+	std::shared_ptr<Node> noteNode(NodeId _id, bi::tcp::endpoint _a, Origin _o, bool _ready, NodeId _oldId = h256());
 	Nodes potentialPeers(RangeMask<unsigned> const& _known);
 
 	std::string m_clientVersion;											///< Our version string.