diff --git a/src/main/java/io/bitsquare/app/BitsquareEnvironment.java b/src/main/java/io/bitsquare/app/BitsquareEnvironment.java
index 7ddf15c5a1..936e1dfc88 100644
--- a/src/main/java/io/bitsquare/app/BitsquareEnvironment.java
+++ b/src/main/java/io/bitsquare/app/BitsquareEnvironment.java
@@ -22,13 +22,13 @@ import io.bitsquare.btc.UserAgent;
 import io.bitsquare.btc.WalletService;
 import io.bitsquare.gui.ViewCB;
 import io.bitsquare.persistence.Persistence;
+import io.bitsquare.util.spring.JOptCommandLinePropertySource;
 
 import java.nio.file.Paths;
 
 import java.util.Properties;
 
 import joptsimple.OptionSet;
-import org.springframework.core.env.JOptCommandLinePropertySource;
 import org.springframework.core.env.MutablePropertySources;
 import org.springframework.core.env.PropertiesPropertySource;
 import org.springframework.core.env.PropertySource;
@@ -64,7 +64,7 @@ public class BitsquareEnvironment extends StandardEnvironment {
     private final String appDataDir;
 
     public BitsquareEnvironment(OptionSet options) {
-        this(new JOptCommandLinePropertySource(BITSQUARE_COMMANDLINE_PROPERTY_SOURCE_NAME, checkNotNull(options)));
+        this(new JOptCommandLinePropertySource(BITSQUARE_CLASSPATH_PROPERTY_SOURCE_NAME, checkNotNull(options)));
     }
 
     BitsquareEnvironment(PropertySource commandLineProperties) {
diff --git a/src/main/java/io/bitsquare/app/cli/BootstrapNodeMain.java b/src/main/java/io/bitsquare/app/cli/BootstrapNodeMain.java
index b45849e4f6..c3ff1d1d7e 100644
--- a/src/main/java/io/bitsquare/app/cli/BootstrapNodeMain.java
+++ b/src/main/java/io/bitsquare/app/cli/BootstrapNodeMain.java
@@ -32,8 +32,8 @@ public class BootstrapNodeMain extends BitsquareExecutable {
 
     protected void customizeOptionParsing(OptionParser parser) {
         parser.accepts(Node.NAME_KEY, "Name of this node").withRequiredArg().isRequired();
-        parser.accepts(Node.PORT_KEY, "Port to listen on").withRequiredArg()
-                .defaultsTo(String.valueOf(Node.DEFAULT_PORT));
+        parser.accepts(Node.PORT_KEY, "Port to listen on").withRequiredArg().ofType(int.class)
+                .defaultsTo(Node.DEFAULT_PORT);
     }
 
     protected void doExecute(OptionSet options) {
diff --git a/src/main/java/io/bitsquare/app/gui/BitsquareAppMain.java b/src/main/java/io/bitsquare/app/gui/BitsquareAppMain.java
index 0681871f1f..e69680e0c8 100644
--- a/src/main/java/io/bitsquare/app/gui/BitsquareAppMain.java
+++ b/src/main/java/io/bitsquare/app/gui/BitsquareAppMain.java
@@ -19,15 +19,15 @@ package io.bitsquare.app.gui;
 
 import io.bitsquare.app.BitsquareEnvironment;
 import io.bitsquare.app.BitsquareExecutable;
-import io.bitsquare.btc.BitcoinModule;
+import io.bitsquare.btc.BitcoinNetwork;
 import io.bitsquare.network.BootstrapNodes;
 import io.bitsquare.network.Node;
+import io.bitsquare.util.joptsimple.EnumValueConverter;
 
 import joptsimple.OptionParser;
 import joptsimple.OptionSet;
 
 import static io.bitsquare.app.BitsquareEnvironment.*;
-import static io.bitsquare.btc.BitcoinModule.BITCOIN_NETWORK_KEY;
 import static io.bitsquare.msg.tomp2p.TomP2PMessageModule.*;
 import static io.bitsquare.network.Node.*;
 
@@ -44,11 +44,14 @@ public class BitsquareAppMain extends BitsquareExecutable {
         parser.accepts(APP_DATA_DIR_KEY, "Application data directory").withRequiredArg()
                 .defaultsTo(DEFAULT_APP_DATA_DIR);
         parser.accepts(NAME_KEY, "Name of this node").withRequiredArg();
-        parser.accepts(PORT_KEY, "Port to listen on").withRequiredArg().defaultsTo(String.valueOf(Node.DEFAULT_PORT));
-        parser.accepts(BITCOIN_NETWORK_KEY).withRequiredArg().defaultsTo(BitcoinModule.DEFAULT_BITCOIN_NETWORK);
+        parser.accepts(PORT_KEY, "Port to listen on").withRequiredArg().ofType(int.class).defaultsTo(Node.DEFAULT_PORT);
+        parser.accepts(BitcoinNetwork.KEY).withRequiredArg().ofType(BitcoinNetwork.class)
+                .withValuesConvertedBy(new EnumValueConverter(BitcoinNetwork.class))
+                .defaultsTo(BitcoinNetwork.DEFAULT);
         parser.accepts(BOOTSTRAP_NODE_NAME_KEY).withRequiredArg().defaultsTo(BootstrapNodes.DEFAULT.getName());
         parser.accepts(BOOTSTRAP_NODE_IP_KEY).withRequiredArg().defaultsTo(BootstrapNodes.DEFAULT.getIp());
-        parser.accepts(BOOTSTRAP_NODE_PORT_KEY).withRequiredArg().defaultsTo(BootstrapNodes.DEFAULT.getPortAsString());
+        parser.accepts(BOOTSTRAP_NODE_PORT_KEY).withRequiredArg().ofType(int.class)
+                .defaultsTo(BootstrapNodes.DEFAULT.getPort());
         parser.accepts(NETWORK_INTERFACE_KEY, "Network interface").withRequiredArg();
     }
 
diff --git a/src/main/java/io/bitsquare/btc/BitcoinModule.java b/src/main/java/io/bitsquare/btc/BitcoinModule.java
index 2105829d3a..48eae71bfb 100644
--- a/src/main/java/io/bitsquare/btc/BitcoinModule.java
+++ b/src/main/java/io/bitsquare/btc/BitcoinModule.java
@@ -34,8 +34,6 @@ import static com.google.inject.name.Names.named;
 
 public class BitcoinModule extends BitsquareModule {
 
-    public static final String BITCOIN_NETWORK_KEY = "bitcoin.network";
-    public static final String DEFAULT_BITCOIN_NETWORK = BitcoinNetwork.TESTNET.toString();
 
     public BitcoinModule(Environment env) {
         super(env);
@@ -43,7 +41,8 @@ public class BitcoinModule extends BitsquareModule {
 
     @Override
     protected void configure() {
-        bind(NetworkParameters.class).toInstance(network());
+        bind(BitcoinNetwork.class).toInstance(
+            env.getProperty(BitcoinNetwork.KEY, BitcoinNetwork.class, BitcoinNetwork.DEFAULT));
         bind(FeePolicy.class).asEagerSingleton();
 
         bindConstant().annotatedWith(named(UserAgent.NAME_KEY)).to(env.getRequiredProperty(UserAgent.NAME_KEY));
@@ -63,21 +62,5 @@ public class BitcoinModule extends BitsquareModule {
     protected void doClose(Injector injector) {
         injector.getInstance(WalletService.class).shutDown();
     }
-
-    private NetworkParameters network() {
-        BitcoinNetwork network = BitcoinNetwork.valueOf(
-                env.getProperty(BITCOIN_NETWORK_KEY, DEFAULT_BITCOIN_NETWORK).toUpperCase());
-
-        switch (network) {
-            case MAINNET:
-                return MainNetParams.get();
-            case TESTNET:
-                return TestNet3Params.get();
-            case REGTEST:
-                return RegTestParams.get();
-            default:
-                throw new IllegalArgumentException("Unknown bitcoin network: " + network);
-        }
-    }
 }
 
diff --git a/src/main/java/io/bitsquare/btc/BitcoinNetwork.java b/src/main/java/io/bitsquare/btc/BitcoinNetwork.java
index d0a1fa2007..152d01db6e 100644
--- a/src/main/java/io/bitsquare/btc/BitcoinNetwork.java
+++ b/src/main/java/io/bitsquare/btc/BitcoinNetwork.java
@@ -17,6 +17,27 @@
 
 package io.bitsquare.btc;
 
+import org.bitcoinj.core.NetworkParameters;
+import org.bitcoinj.params.MainNetParams;
+import org.bitcoinj.params.RegTestParams;
+import org.bitcoinj.params.TestNet3Params;
+
 public enum BitcoinNetwork {
-    MAINNET, TESTNET, REGTEST;
+
+    MAINNET(MainNetParams.get()),
+    TESTNET(TestNet3Params.get()),
+    REGTEST(RegTestParams.get());
+
+    public static final String KEY = "bitcoin.network";
+    public static final BitcoinNetwork DEFAULT = TESTNET;
+
+    private final NetworkParameters parameters;
+
+    BitcoinNetwork(NetworkParameters parameters) {
+        this.parameters = parameters;
+    }
+
+    public NetworkParameters getParameters() {
+        return parameters;
+    }
 }
diff --git a/src/main/java/io/bitsquare/btc/FeePolicy.java b/src/main/java/io/bitsquare/btc/FeePolicy.java
index 1e3d2b92f1..2d96c19b75 100644
--- a/src/main/java/io/bitsquare/btc/FeePolicy.java
+++ b/src/main/java/io/bitsquare/btc/FeePolicy.java
@@ -17,14 +17,12 @@
 
 package io.bitsquare.btc;
 
+import io.bitsquare.BitsquareException;
+
 import org.bitcoinj.core.Address;
 import org.bitcoinj.core.AddressFormatException;
 import org.bitcoinj.core.Coin;
-import org.bitcoinj.core.NetworkParameters;
 import org.bitcoinj.core.Transaction;
-import org.bitcoinj.params.MainNetParams;
-import org.bitcoinj.params.RegTestParams;
-import org.bitcoinj.params.TestNet3Params;
 
 import javax.inject.Inject;
 
@@ -32,77 +30,60 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public class FeePolicy {
+
     public static final Coin TX_FEE = Transaction.REFERENCE_DEFAULT_MIN_TX_FEE;
 
-    // The min. REGISTRATION_FEE calculated with Transaction.MIN_NONDUST_OUTPUT would be 0.00015460 which might lead
-    // to problems for the spending wallet.
+    // The min. REGISTRATION_FEE calculated with Transaction.MIN_NONDUST_OUTPUT would be
+    // 0.00015460 which might lead to problems for the spending wallet.
     // Some web wallets don't allow more then 4 decimal places (need more investigation)
     // So we use 0.0002 as that fits also to our 4 decimal places restriction for BTC values.
     // The remaining 0.0000454 BTC is given to miners at the moment as it is lower then dust.
     public static final Coin REGISTRATION_FEE = TX_FEE.add(TX_FEE);
-
     public static final Coin CREATE_OFFER_FEE = REGISTRATION_FEE; // 0.0002
     public static final Coin TAKE_OFFER_FEE = CREATE_OFFER_FEE;
-    private static final Logger log = LoggerFactory.getLogger(FeePolicy.class);
 
-    // those are just dummy yet. trading fees will go probably to arbiters
-    // Not used at the moment
-    // private static final String registrationFeeAddress = "mvkDXt4QmN4Nq9dRUsRigBCaovde9nLkZR";
-
-    //
-    private static String createOfferFeeAddress;
-    private static String takeOfferFeeAddress;
-
-    private final NetworkParameters params;
+    private final BitcoinNetwork bitcoinNetwork;
+    private final String createOfferFeeAddress;
+    private final String takeOfferFeeAddress;
 
     @Inject
-    public FeePolicy(NetworkParameters params) {
-        this.params = params;
+    public FeePolicy(BitcoinNetwork bitcoinNetwork) {
+        this.bitcoinNetwork = bitcoinNetwork;
 
-        if (params.equals(TestNet3Params.get())) {
-            createOfferFeeAddress = "mmm8BdTcHoc5wi75RmiQYsJ2Tr1NoZmM84";
-            takeOfferFeeAddress = "mmm8BdTcHoc5wi75RmiQYsJ2Tr1NoZmM84";
-        }
-        else if (params.equals(MainNetParams.get())) {
-            // bitsquare donation address used for the moment...
-            createOfferFeeAddress = "1BVxNn3T12veSK6DgqwU4Hdn7QHcDDRag7";
-            takeOfferFeeAddress = "1BVxNn3T12veSK6DgqwU4Hdn7QHcDDRag7";
-        }
-        else if (params.equals(RegTestParams.get())) {
-            createOfferFeeAddress = "n2upbsaKAe4PD3cc4JfS7UCqPC5oNd7Ckg";
-            takeOfferFeeAddress = "n2upbsaKAe4PD3cc4JfS7UCqPC5oNd7Ckg";
+        switch (bitcoinNetwork) {
+            case TESTNET:
+                createOfferFeeAddress = "mmm8BdTcHoc5wi75RmiQYsJ2Tr1NoZmM84";
+                takeOfferFeeAddress = "mmm8BdTcHoc5wi75RmiQYsJ2Tr1NoZmM84";
+                break;
+            case MAINNET:
+                // bitsquare donation address used for the moment...
+                createOfferFeeAddress = "1BVxNn3T12veSK6DgqwU4Hdn7QHcDDRag7";
+                takeOfferFeeAddress = "1BVxNn3T12veSK6DgqwU4Hdn7QHcDDRag7";
+                break;
+            case REGTEST:
+                createOfferFeeAddress = "n2upbsaKAe4PD3cc4JfS7UCqPC5oNd7Ckg";
+                takeOfferFeeAddress = "n2upbsaKAe4PD3cc4JfS7UCqPC5oNd7Ckg";
+                break;
+            default:
+                throw new BitsquareException("Unknown bitcoin network: %s", bitcoinNetwork);
         }
     }
 
-    //TODO who is receiver? other users or dev address? use donation option list?
-    // Not used at the moment
-    // (dev, other users, wikileaks, tor, sub projects (bitcoinj, tomp2p,...)...)
- /*   public Address getAddressForRegistrationFee() {
-        try {
-            return new Address(params, registrationFeeAddress);
-        } catch (AddressFormatException e) {
-             e.printStackTrace();
-            return null;
-        }
-    }*/
-
     //TODO get address form arbitrator list
     public Address getAddressForCreateOfferFee() {
         try {
-            return new Address(params, createOfferFeeAddress);
-        } catch (AddressFormatException e) {
-            e.printStackTrace();
-            return null;
+            return new Address(bitcoinNetwork.getParameters(), createOfferFeeAddress);
+        } catch (AddressFormatException ex) {
+            throw new BitsquareException(ex);
         }
     }
 
     //TODO get address form the intersection of  both traders arbitrator lists
     public Address getAddressForTakeOfferFee() {
         try {
-            return new Address(params, takeOfferFeeAddress);
-        } catch (AddressFormatException e) {
-            e.printStackTrace();
-            return null;
+            return new Address(bitcoinNetwork.getParameters(), takeOfferFeeAddress);
+        } catch (AddressFormatException ex) {
+            throw new BitsquareException(ex);
         }
     }
 }
diff --git a/src/main/java/io/bitsquare/btc/WalletService.java b/src/main/java/io/bitsquare/btc/WalletService.java
index acaa1410b1..fcfb24a8db 100644
--- a/src/main/java/io/bitsquare/btc/WalletService.java
+++ b/src/main/java/io/bitsquare/btc/WalletService.java
@@ -123,10 +123,10 @@ public class WalletService {
     ///////////////////////////////////////////////////////////////////////////////////////////
 
     @Inject
-    public WalletService(NetworkParameters params, FeePolicy feePolicy, SignatureService signatureService,
+    public WalletService(BitcoinNetwork bitcoinNetwork, FeePolicy feePolicy, SignatureService signatureService,
                          Persistence persistence, UserAgent userAgent,
                          @Named(DIR_KEY) File walletDir, @Named(PREFIX_KEY) String walletPrefix) {
-        this.params = params;
+        this.params = bitcoinNetwork.getParameters();
         this.feePolicy = feePolicy;
         this.signatureService = signatureService;
         this.persistence = persistence;
diff --git a/src/main/java/io/bitsquare/gui/main/preferences/PreferencesViewCB.java b/src/main/java/io/bitsquare/gui/main/preferences/PreferencesViewCB.java
index c16d48e61b..86316b84b7 100644
--- a/src/main/java/io/bitsquare/gui/main/preferences/PreferencesViewCB.java
+++ b/src/main/java/io/bitsquare/gui/main/preferences/PreferencesViewCB.java
@@ -141,7 +141,8 @@ public class PreferencesViewCB extends CachedViewCB {
         tab.setContent(view);
         ((TabPane) root).getSelectionModel().select(tab);
         Initializable childController = loader.getController();
-        ((ViewCB) childController).setParent(this);
+        if (childController instanceof ViewCB)
+            ((ViewCB) childController).setParent(this);
 
         return childController;
     }
diff --git a/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesPM.java b/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesPM.java
deleted file mode 100644
index e0625e61ef..0000000000
--- a/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesPM.java
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * This file is part of Bitsquare.
- *
- * Bitsquare is free software: you can redistribute it and/or modify it
- * under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or (at
- * your option) any later version.
- *
- * Bitsquare is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
- * License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with Bitsquare. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package io.bitsquare.gui.main.preferences.network;
-
-import io.bitsquare.BitsquareException;
-import io.bitsquare.gui.PresentationModel;
-import io.bitsquare.msg.tomp2p.BootstrappedPeerFactory;
-import io.bitsquare.msg.tomp2p.TomP2PNode;
-import io.bitsquare.network.BootstrapState;
-import io.bitsquare.network.Node;
-
-import org.bitcoinj.core.NetworkParameters;
-
-import com.google.inject.Inject;
-import com.google.inject.name.Named;
-
-import net.tomp2p.peers.PeerSocketAddress;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class NetworkPreferencesPM extends PresentationModel {
-    private static final Logger log = LoggerFactory.getLogger(NetworkPreferencesPM.class);
-
-    final String bitcoinNetworkType;
-    final String p2pNetworkConnection;
-    final String p2pNetworkAddress;
-    final String bootstrapAddress;
-
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Constructor
-    ///////////////////////////////////////////////////////////////////////////////////////////
-
-    @Inject
-    NetworkPreferencesPM(NetworkParameters networkParameters,
-                         BootstrappedPeerFactory bootstrappedPeerFactory,
-                         TomP2PNode tomP2PNode,
-                         @Named(BootstrappedPeerFactory.BOOTSTRAP_NODE_KEY) Node bootstrapNode) {
-
-        switch (networkParameters.getId()) {
-            case NetworkParameters.ID_REGTEST:
-                bitcoinNetworkType = "Regtest";
-                break;
-            case NetworkParameters.ID_TESTNET:
-                bitcoinNetworkType = "Testnet";
-                break;
-            case NetworkParameters.ID_MAINNET:
-                bitcoinNetworkType = "Mainnet";
-                break;
-            default:
-                bitcoinNetworkType = "Undefined";
-                throw new BitsquareException("Invalid networkParameters " + networkParameters.getId());
-        }
-
-        PeerSocketAddress socketAddress = tomP2PNode.getPeerDHT().peerAddress().peerSocketAddress();
-        p2pNetworkAddress = "IP: " + socketAddress.inetAddress().getHostAddress()
-                + ", TCP port: " + socketAddress.tcpPort()
-                + ", UDP port: " + socketAddress.udpPort();
-
-        bootstrapAddress = "ID: " + bootstrapNode.getName()
-                + ", IP: " + bootstrapNode.getIp()
-                + ", Port: " + bootstrapNode.getPortAsString();
-
-        BootstrapState state = bootstrappedPeerFactory.bootstrapState.get();
-        if (state == BootstrapState.DIRECT_SUCCESS)
-            p2pNetworkConnection = "Direct connection";
-        else if (state == BootstrapState.NAT_SUCCESS)
-            p2pNetworkConnection = "Connected with automatic port forwarding";
-        else if (state == BootstrapState.RELAY_SUCCESS)
-            p2pNetworkConnection = "Relayed by other peers";
-        else
-            throw new BitsquareException("Invalid BootstrapState " + state);
-    }
-
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Lifecycle
-    ///////////////////////////////////////////////////////////////////////////////////////////
-
-    @SuppressWarnings("EmptyMethod")
-    @Override
-    public void initialize() {
-        super.initialize();
-    }
-
-    @SuppressWarnings("EmptyMethod")
-    @Override
-    public void activate() {
-        super.activate();
-    }
-
-    @SuppressWarnings("EmptyMethod")
-    @Override
-    public void deactivate() {
-        super.deactivate();
-    }
-
-    @SuppressWarnings("EmptyMethod")
-    @Override
-    public void terminate() {
-        super.terminate();
-    }
-
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Methods
-    ///////////////////////////////////////////////////////////////////////////////////////////
-
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Getters
-    ///////////////////////////////////////////////////////////////////////////////////////////
-
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Private
-    ///////////////////////////////////////////////////////////////////////////////////////////
-
-
-}
diff --git a/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesView.fxml b/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesView.fxml
index 2f8dd60c8b..e9a326e0dd 100644
--- a/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesView.fxml
+++ b/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesView.fxml
@@ -38,7 +38,7 @@
             <Insets top="10"/>
         </GridPane.margin>
     </Label>
-    <TextField fx:id="bitcoinNetworkType" GridPane.rowIndex="0" GridPane.columnIndex="1"
+    <TextField fx:id="bitcoinNetwork" GridPane.rowIndex="0" GridPane.columnIndex="1"
                mouseTransparent="true" editable="false" focusTraversable="false">
         <GridPane.margin>
             <Insets top="10"/>
@@ -46,11 +46,11 @@
     </TextField>
 
     <Label text="P2P network connection:" GridPane.rowIndex="1"/>
-    <TextField fx:id="p2pNetworkConnection" GridPane.rowIndex="1" GridPane.columnIndex="1"
+    <TextField fx:id="connectionType" GridPane.rowIndex="1" GridPane.columnIndex="1"
                mouseTransparent="true" editable="false" focusTraversable="false"/>
 
     <Label text="My external visible P2P network address:" GridPane.rowIndex="2"/>
-    <TextField fx:id="p2pNetworkAddress" GridPane.rowIndex="2" GridPane.columnIndex="1"
+    <TextField fx:id="nodeAddress" GridPane.rowIndex="2" GridPane.columnIndex="1"
                mouseTransparent="true" editable="false" focusTraversable="false"/>
 
     <Label text="P2P bootstrap node address:" GridPane.rowIndex="3">
@@ -58,7 +58,7 @@
             <Insets bottom="-15"/>
         </GridPane.margin>
     </Label>
-    <TextField fx:id="bootstrapAddress" GridPane.rowIndex="3" GridPane.columnIndex="1"
+    <TextField fx:id="bootstrapNodeAddress" GridPane.rowIndex="3" GridPane.columnIndex="1"
                mouseTransparent="true" editable="false" focusTraversable="false">
         <GridPane.margin>
             <Insets bottom="-15"/>
diff --git a/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesViewCB.java b/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesViewCB.java
index 90da92d407..e86dca40ca 100644
--- a/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesViewCB.java
+++ b/src/main/java/io/bitsquare/gui/main/preferences/network/NetworkPreferencesViewCB.java
@@ -17,7 +17,8 @@
 
 package io.bitsquare.gui.main.preferences.network;
 
-import io.bitsquare.gui.CachedViewCB;
+import io.bitsquare.btc.BitcoinNetwork;
+import io.bitsquare.network.ClientNode;
 
 import java.net.URL;
 
@@ -26,62 +27,28 @@ import java.util.ResourceBundle;
 import javax.inject.Inject;
 
 import javafx.fxml.FXML;
+import javafx.fxml.Initializable;
 import javafx.scene.control.*;
 
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+public class NetworkPreferencesViewCB implements Initializable {
 
-/**
- * This UI is not cached as it is normally only needed once.
- */
-public class NetworkPreferencesViewCB extends CachedViewCB<NetworkPreferencesPM> {
+    private final String bitcoinNetworkValue;
+    private final ClientNode clientNode;
 
-    private static final Logger log = LoggerFactory.getLogger(NetworkPreferencesViewCB.class);
-
-    @FXML TextField bitcoinNetworkType, p2pNetworkConnection, p2pNetworkAddress, bootstrapAddress;
-
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Constructor
-    ///////////////////////////////////////////////////////////////////////////////////////////
+    @FXML TextField bitcoinNetwork, connectionType, nodeAddress, bootstrapNodeAddress;
 
     @Inject
-    private NetworkPreferencesViewCB(NetworkPreferencesPM presentationModel) {
-        super(presentationModel);
+    public NetworkPreferencesViewCB(BitcoinNetwork bitcoinNetwork, ClientNode clientNode) {
+        this.bitcoinNetworkValue = bitcoinNetwork.toString();
+        this.clientNode = clientNode;
     }
 
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Lifecycle
-    ///////////////////////////////////////////////////////////////////////////////////////////
-
-    @SuppressWarnings("EmptyMethod")
     @Override
     public void initialize(URL url, ResourceBundle rb) {
-        super.initialize(url, rb);
+        bitcoinNetwork.setText(bitcoinNetworkValue);
+        nodeAddress.setText(clientNode.getAddress().toString());
+        bootstrapNodeAddress.setText(clientNode.getBootstrapNodeAddress().toString());
+        connectionType.setText(clientNode.getConnectionType().toString());
     }
-
-    @Override
-    public void activate() {
-        super.activate();
-
-        bitcoinNetworkType.setText(presentationModel.bitcoinNetworkType);
-        p2pNetworkConnection.setText(presentationModel.p2pNetworkConnection);
-        p2pNetworkAddress.setText(presentationModel.p2pNetworkAddress);
-        bootstrapAddress.setText(presentationModel.bootstrapAddress);
-    }
-
-    @SuppressWarnings("EmptyMethod")
-    @Override
-    public void deactivate() {
-        super.deactivate();
-    }
-
-    @SuppressWarnings("EmptyMethod")
-    @Override
-    public void terminate() {
-        super.terminate();
-    }
-
 }
 
diff --git a/src/main/java/io/bitsquare/gui/util/validation/BtcAddressValidator.java b/src/main/java/io/bitsquare/gui/util/validation/BtcAddressValidator.java
index 1a232a3e72..2fdd8b6481 100644
--- a/src/main/java/io/bitsquare/gui/util/validation/BtcAddressValidator.java
+++ b/src/main/java/io/bitsquare/gui/util/validation/BtcAddressValidator.java
@@ -17,9 +17,10 @@
 
 package io.bitsquare.gui.util.validation;
 
+import io.bitsquare.btc.BitcoinNetwork;
+
 import org.bitcoinj.core.Address;
 import org.bitcoinj.core.AddressFormatException;
-import org.bitcoinj.core.NetworkParameters;
 
 import javax.inject.Inject;
 
@@ -33,7 +34,8 @@ import org.slf4j.LoggerFactory;
  */
 public final class BtcAddressValidator extends InputValidator {
     private static final Logger log = LoggerFactory.getLogger(BtcAddressValidator.class);
-    private final NetworkParameters networkParameters;
+
+    private final BitcoinNetwork bitcoinNetwork;
 
 
     ///////////////////////////////////////////////////////////////////////////////////////////
@@ -41,8 +43,8 @@ public final class BtcAddressValidator extends InputValidator {
     ///////////////////////////////////////////////////////////////////////////////////////////
 
     @Inject
-    public BtcAddressValidator(NetworkParameters networkParameters) {
-        this.networkParameters = networkParameters;
+    public BtcAddressValidator(BitcoinNetwork bitcoinNetwork) {
+        this.bitcoinNetwork = bitcoinNetwork;
     }
 
 
@@ -67,7 +69,7 @@ public final class BtcAddressValidator extends InputValidator {
 
     private ValidationResult validateBtcAddress(String input) {
         try {
-            new Address(networkParameters, input);
+            new Address(bitcoinNetwork.getParameters(), input);
             return new ValidationResult(true);
         } catch (AddressFormatException e) {
             return new ValidationResult(false, "Bitcoin address is a valid format");
diff --git a/src/main/java/io/bitsquare/msg/tomp2p/BootstrappedPeerFactory.java b/src/main/java/io/bitsquare/msg/tomp2p/BootstrappedPeerFactory.java
index 561ecccaa9..6469235728 100644
--- a/src/main/java/io/bitsquare/msg/tomp2p/BootstrappedPeerFactory.java
+++ b/src/main/java/io/bitsquare/msg/tomp2p/BootstrappedPeerFactory.java
@@ -70,10 +70,10 @@ import org.slf4j.LoggerFactory;
 /**
  * Creates a DHT peer and bootstraps to the network via a bootstrap node
  */
-public class BootstrappedPeerFactory {
+class BootstrappedPeerFactory {
     private static final Logger log = LoggerFactory.getLogger(BootstrappedPeerFactory.class);
 
-    public static final String BOOTSTRAP_NODE_KEY = "bootstrapNode";
+    static final String BOOTSTRAP_NODE_KEY = "bootstrapNode";
     static final String NETWORK_INTERFACE_KEY = "interface";
     static final String NETWORK_INTERFACE_UNSPECIFIED = "<unspecified>";
 
@@ -84,7 +84,8 @@ public class BootstrappedPeerFactory {
     private final Persistence persistence;
 
     private final SettableFuture<PeerDHT> settableFuture = SettableFuture.create();
-    public final ObjectProperty<BootstrapState> bootstrapState = new SimpleObjectProperty<>();
+
+    private final ObjectProperty<BootstrapState> bootstrapState = new SimpleObjectProperty<>();
     private Peer peer;
     private PeerDHT peerDHT;
 
@@ -342,6 +343,14 @@ public class BootstrappedPeerFactory {
         }
     }
 
+    public Node getBootstrapNode() {
+        return bootstrapNode;
+    }
+
+    public ObjectProperty<BootstrapState> getBootstrapState() {
+        return bootstrapState;
+    }
+
     private void setState(BootstrapState bootstrapState, String message) {
         setState(bootstrapState, message, true);
     }
diff --git a/src/main/java/io/bitsquare/msg/tomp2p/TomP2PMessageModule.java b/src/main/java/io/bitsquare/msg/tomp2p/TomP2PMessageModule.java
index 1364a6d7ff..3acb58a457 100644
--- a/src/main/java/io/bitsquare/msg/tomp2p/TomP2PMessageModule.java
+++ b/src/main/java/io/bitsquare/msg/tomp2p/TomP2PMessageModule.java
@@ -20,10 +20,13 @@ package io.bitsquare.msg.tomp2p;
 import io.bitsquare.msg.MessageModule;
 import io.bitsquare.msg.MessageService;
 import io.bitsquare.network.BootstrapNodes;
+import io.bitsquare.network.ClientNode;
 import io.bitsquare.network.Node;
 
 import com.google.inject.name.Names;
 
+import javax.inject.Singleton;
+
 import org.springframework.core.env.Environment;
 
 import static io.bitsquare.msg.tomp2p.BootstrappedPeerFactory.*;
@@ -43,13 +46,14 @@ public class TomP2PMessageModule extends MessageModule {
     protected void doConfigure() {
         bind(int.class).annotatedWith(Names.named(Node.PORT_KEY)).toInstance(
                 env.getProperty(Node.PORT_KEY, Integer.class, Node.DEFAULT_PORT));
-        bind(TomP2PNode.class).asEagerSingleton();
+        bind(TomP2PNode.class).in(Singleton.class);
+        bind(ClientNode.class).to(TomP2PNode.class);
 
         bind(Node.class).annotatedWith(Names.named(BOOTSTRAP_NODE_KEY)).toInstance(
                 Node.at(
                         env.getProperty(BOOTSTRAP_NODE_NAME_KEY, BootstrapNodes.DEFAULT.getName()),
                         env.getProperty(BOOTSTRAP_NODE_IP_KEY, BootstrapNodes.DEFAULT.getIp()),
-                        env.getProperty(BOOTSTRAP_NODE_PORT_KEY, BootstrapNodes.DEFAULT.getPortAsString())
+                        env.getProperty(BOOTSTRAP_NODE_PORT_KEY, int.class, BootstrapNodes.DEFAULT.getPort())
                 )
         );
         bindConstant().annotatedWith(Names.named(NETWORK_INTERFACE_KEY)).to(
diff --git a/src/main/java/io/bitsquare/msg/tomp2p/TomP2PNode.java b/src/main/java/io/bitsquare/msg/tomp2p/TomP2PNode.java
index 5723de6eb2..0b1e0ddc3f 100644
--- a/src/main/java/io/bitsquare/msg/tomp2p/TomP2PNode.java
+++ b/src/main/java/io/bitsquare/msg/tomp2p/TomP2PNode.java
@@ -20,6 +20,10 @@ package io.bitsquare.msg.tomp2p;
 import io.bitsquare.BitsquareException;
 import io.bitsquare.msg.MessageBroker;
 import io.bitsquare.msg.listeners.BootstrapListener;
+import io.bitsquare.network.BootstrapState;
+import io.bitsquare.network.ClientNode;
+import io.bitsquare.network.ConnectionType;
+import io.bitsquare.network.Node;
 import io.bitsquare.network.tomp2p.TomP2PPeer;
 
 import com.google.common.util.concurrent.FutureCallback;
@@ -51,6 +55,7 @@ import net.tomp2p.futures.FutureDirect;
 import net.tomp2p.futures.FuturePeerConnection;
 import net.tomp2p.peers.Number160;
 import net.tomp2p.peers.PeerAddress;
+import net.tomp2p.peers.PeerSocketAddress;
 import net.tomp2p.storage.Data;
 import net.tomp2p.utils.Utils;
 
@@ -67,7 +72,7 @@ import static com.google.common.base.Preconditions.checkNotNull;
  * This class is offering generic functionality of TomP2P needed for Bitsquare, like data and domain protection.
  * It does not handle any domain aspects of Bitsquare.
  */
-public class TomP2PNode {
+public class TomP2PNode implements ClientNode {
     private static final Logger log = LoggerFactory.getLogger(TomP2PNode.class);
 
     private KeyPair keyPair;
@@ -115,7 +120,7 @@ public class TomP2PNode {
         checkNotNull(keyPair, "keyPair must not be null.");
         checkNotNull(messageBroker, "messageBroker must not be null.");
 
-        bootstrappedPeerFactory.bootstrapState.addListener((ov, oldValue, newValue) ->
+        bootstrappedPeerFactory.getBootstrapState().addListener((ov, oldValue, newValue) ->
                 bootstrapListener.onBootstrapStateChanged(newValue));
 
         SettableFuture<PeerDHT> bootstrapFuture = bootstrappedPeerFactory.start();
@@ -155,11 +160,6 @@ public class TomP2PNode {
             peerDHT.shutdown();
     }
 
-    public PeerDHT getPeerDHT() {
-        return peerDHT;
-    }
-
-
     ///////////////////////////////////////////////////////////////////////////////////////////
     // Generic DHT methods
     ///////////////////////////////////////////////////////////////////////////////////////////
@@ -373,4 +373,33 @@ public class TomP2PNode {
         log.debug("storePeerAddress " + peerDHT.peerAddress().toString());
         return putDomainProtectedData(locationKey, data);
     }
+
+    @Override
+    public ConnectionType getConnectionType() {
+        BootstrapState bootstrapState = bootstrappedPeerFactory.getBootstrapState().get();
+        switch (bootstrapState) {
+            case DIRECT_SUCCESS:
+                return ConnectionType.DIRECT;
+            case NAT_SUCCESS:
+                return ConnectionType.NAT;
+            case RELAY_SUCCESS:
+                return ConnectionType.RELAY;
+            default:
+                throw new BitsquareException("Invalid bootstrap state: %s", bootstrapState);
+        }
+    }
+
+    @Override
+    public Node getAddress() {
+        PeerSocketAddress socketAddress = peerDHT.peerAddress().peerSocketAddress();
+        return Node.at(
+                peerDHT.peerID().toString(),
+                socketAddress.inetAddress().getHostAddress(),
+                socketAddress.tcpPort());
+    }
+
+    @Override
+    public Node getBootstrapNodeAddress() {
+        return bootstrappedPeerFactory.getBootstrapNode();
+    }
 }
diff --git a/src/main/java/io/bitsquare/network/ClientNode.java b/src/main/java/io/bitsquare/network/ClientNode.java
new file mode 100644
index 0000000000..c721ae19ae
--- /dev/null
+++ b/src/main/java/io/bitsquare/network/ClientNode.java
@@ -0,0 +1,26 @@
+/*
+ * This file is part of Bitsquare.
+ *
+ * Bitsquare is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Bitsquare is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Bitsquare. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package io.bitsquare.network;
+
+public interface ClientNode {
+    ConnectionType getConnectionType();
+
+    Node getAddress();
+
+    Node getBootstrapNodeAddress();
+}
diff --git a/src/main/java/io/bitsquare/network/ConnectionType.java b/src/main/java/io/bitsquare/network/ConnectionType.java
new file mode 100644
index 0000000000..b32374517c
--- /dev/null
+++ b/src/main/java/io/bitsquare/network/ConnectionType.java
@@ -0,0 +1,22 @@
+/*
+ * This file is part of Bitsquare.
+ *
+ * Bitsquare is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Bitsquare is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Bitsquare. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package io.bitsquare.network;
+
+public enum ConnectionType {
+    UNKNOWN, DIRECT, NAT, RELAY
+}
diff --git a/src/main/java/io/bitsquare/network/Node.java b/src/main/java/io/bitsquare/network/Node.java
index 08252e8e0a..c0c113438b 100644
--- a/src/main/java/io/bitsquare/network/Node.java
+++ b/src/main/java/io/bitsquare/network/Node.java
@@ -64,10 +64,6 @@ public final class Node {
         return port;
     }
 
-    public String getPortAsString() {
-        return String.valueOf(port);
-    }
-
     /**
      * Return a copy of this node with the port updated to the given value.
      */
diff --git a/src/main/java/io/bitsquare/util/joptsimple/EnumValueConverter.java b/src/main/java/io/bitsquare/util/joptsimple/EnumValueConverter.java
new file mode 100644
index 0000000000..f939eafa93
--- /dev/null
+++ b/src/main/java/io/bitsquare/util/joptsimple/EnumValueConverter.java
@@ -0,0 +1,70 @@
+/*
+ * This file is part of Bitsquare.
+ *
+ * Bitsquare is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Bitsquare is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Bitsquare. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package io.bitsquare.util.joptsimple;
+
+import com.google.common.base.Enums;
+import com.google.common.base.Optional;
+import com.google.common.collect.Sets;
+
+import java.util.Set;
+
+import joptsimple.ValueConverter;
+
+import static org.springframework.util.StringUtils.collectionToDelimitedString;
+
+/**
+ * A {@link joptsimple.ValueConverter} that supports case-insensitive conversion from
+ * String to an enum label. Useful in conjunction with {@link joptsimple.ArgumentAcceptingOptionSpec#ofType(Class)}
+ * when the type in question is an enum.
+ */
+public class EnumValueConverter implements ValueConverter<Enum> {
+
+    private final Class<? extends Enum> enumType;
+
+    public EnumValueConverter(Class<? extends Enum> enumType) {
+        this.enumType = enumType;
+    }
+
+    /**
+     * Attempt to resolve an enum of the specified type by looking for a label with the
+     * given value, trying all case variations in the process.
+     * @return the matching enum label (if any)
+     * @throws IllegalArgumentException if no such label matching the given value is found.
+     */
+    @Override
+    public Enum convert(String value) {
+        Set<String> candidates = Sets.newHashSet(value, value.toUpperCase(), value.toLowerCase());
+        for (String candidate : candidates) {
+            Optional<? extends Enum> result = Enums.getIfPresent(enumType, candidate);
+            if (result.isPresent())
+                return result.get();
+        }
+        throw new IllegalArgumentException(String.format(
+                "No enum constant %s.[%s]", enumType.getName(), collectionToDelimitedString(candidates, "|")));
+    }
+
+    @Override
+    public Class<? extends Enum> valueType() {
+        return enumType;
+    }
+
+    @Override
+    public String valuePattern() {
+        return null;
+    }
+}
diff --git a/src/main/java/io/bitsquare/util/spring/JOptCommandLinePropertySource.java b/src/main/java/io/bitsquare/util/spring/JOptCommandLinePropertySource.java
new file mode 100644
index 0000000000..fe5825dda0
--- /dev/null
+++ b/src/main/java/io/bitsquare/util/spring/JOptCommandLinePropertySource.java
@@ -0,0 +1,50 @@
+/*
+ * This file is part of Bitsquare.
+ *
+ * Bitsquare is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * Bitsquare is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Bitsquare. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package io.bitsquare.util.spring;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import joptsimple.OptionSet;
+
+/**
+ * Customizes {@link io.bitsquare.util.spring.JOptCommandLinePropertySource#getOptionValues(String)}
+ * to allow for proper use of {@link joptsimple.ArgumentAcceptingOptionSpec#ofType(Class)}.
+ * To be removed once https://github.com/spring-projects/spring-framework/pull/693 has
+ * been merged and made available in a release.
+ */
+public class JOptCommandLinePropertySource extends org.springframework.core.env.JOptCommandLinePropertySource {
+
+    public JOptCommandLinePropertySource(String name, OptionSet options) {
+        super(name, options);
+    }
+
+    @Override
+    public List<String> getOptionValues(String name) {
+        List<?> argValues = this.source.valuesOf(name);
+        List<String> stringArgValues = new ArrayList<>();
+        for (Object argValue : argValues) {
+            stringArgValues.add(argValue instanceof String ? (String) argValue : argValue.toString());
+        }
+        if (stringArgValues.isEmpty()) {
+            return (this.source.has(name) ? Collections.<String>emptyList() : null);
+        }
+        return Collections.unmodifiableList(stringArgValues);
+    }
+}
diff --git a/src/test/java/io/bitsquare/msg/TomP2PTests.java b/src/test/java/io/bitsquare/msg/TomP2PTests.java
index 33ea0f8202..65dd01c123 100644
--- a/src/test/java/io/bitsquare/msg/TomP2PTests.java
+++ b/src/test/java/io/bitsquare/msg/TomP2PTests.java
@@ -18,6 +18,7 @@
 package io.bitsquare.msg;
 
 import io.bitsquare.network.BootstrapNodes;
+import io.bitsquare.network.ConnectionType;
 import io.bitsquare.network.Node;
 import io.bitsquare.util.Repeat;
 import io.bitsquare.util.RepeatRule;
@@ -80,10 +81,6 @@ import static org.junit.Assert.*;
 public class TomP2PTests {
     private static final Logger log = LoggerFactory.getLogger(TomP2PTests.class);
 
-    private enum ConnectionType {
-        UNKNOWN, DIRECT, NAT, RELAY
-    }
-
     // If you want to test in one specific connection mode define it directly, otherwise use UNKNOWN
     private static final ConnectionType FORCED_CONNECTION_TYPE = ConnectionType.DIRECT;
 
diff --git a/src/test/java/io/bitsquare/network/NodeTests.java b/src/test/java/io/bitsquare/network/NodeTests.java
index ad2083d079..cf31902d8e 100644
--- a/src/test/java/io/bitsquare/network/NodeTests.java
+++ b/src/test/java/io/bitsquare/network/NodeTests.java
@@ -46,7 +46,6 @@ public class NodeTests {
         assertThat(node1a.hashCode(), not(equalTo(node2.hashCode())));
 
         assertThat(node1a.getPort(), equalTo(Node.DEFAULT_PORT));
-        assertThat(node1a.getPortAsString(), equalTo(String.valueOf(Node.DEFAULT_PORT)));
 
         Node node3a = Node.at("bitsquare3.example.com", "203.0.113.3", 1234);
         Node node3b = Node.at("bitsquare3.example.com", "203.0.113.3", "1234");