diff --git a/src/cryptonote_core/blockchain_storage.cpp b/src/cryptonote_core/blockchain_storage.cpp
index c80cec92c..cd20cd818 100644
--- a/src/cryptonote_core/blockchain_storage.cpp
+++ b/src/cryptonote_core/blockchain_storage.cpp
@@ -82,7 +82,7 @@ uint64_t blockchain_storage::get_current_blockchain_height()
   return m_blocks.size();
 }
 //------------------------------------------------------------------
-bool blockchain_storage::init(const std::string& config_folder)
+bool blockchain_storage::init(const std::string& config_folder, bool testnet)
 {
   CRITICAL_REGION_LOCAL(m_blockchain_lock);
   m_config_folder = config_folder;
@@ -121,11 +121,24 @@ bool blockchain_storage::init(const std::string& config_folder)
   if(!m_blocks.size())
   {
     LOG_PRINT_L0("Blockchain not loaded, generating genesis block.");
-    block bl = boost::value_initialized<block>();
-    block_verification_context bvc = boost::value_initialized<block_verification_context>();
-    generate_genesis_block(bl);
-    add_new_block(bl, bvc);
-    CHECK_AND_ASSERT_MES(!bvc.m_verifivation_failed, false, "Failed to add genesis block to blockchain");
+
+    if (!store_genesis_block(testnet)) {
+      return false;
+    }
+  } else {
+    cryptonote::block b;
+    if (testnet) {
+      generate_testnet_genesis_block(b);
+    } else {
+      generate_genesis_block(b);
+    }
+
+    crypto::hash genesis_hash = get_block_hash(m_blocks[0].bl);
+    crypto::hash testnet_genesis_hash = get_block_hash(b);
+    if (genesis_hash != testnet_genesis_hash) {
+      LOG_ERROR("Failed to init: genesis block mismatch. Probably you set --testnet flag with data dir with non-test blockchain or another network.");
+      return false;
+    }
   }
   uint64_t timestamp_diff = time(NULL) - m_blocks.back().bl.timestamp;
   if(!m_blocks.back().bl.timestamp)
@@ -134,6 +147,21 @@ bool blockchain_storage::init(const std::string& config_folder)
   return true;
 }
 //------------------------------------------------------------------
+bool blockchain_storage::store_genesis_block(bool testnet) {
+  block bl = ::boost::value_initialized<block>();
+  block_verification_context bvc = boost::value_initialized<block_verification_context>();
+
+  if (testnet) {
+    generate_testnet_genesis_block(bl);
+  } else {
+    generate_genesis_block(bl);
+  }
+
+  add_new_block(bl, bvc);
+  CHECK_AND_ASSERT_MES(!bvc.m_verifivation_failed, false, "Failed to add genesis block to blockchain");
+  return true;
+}
+//------------------------------------------------------------------
 bool blockchain_storage::store_blockchain()
 {
   m_is_blockchain_storing = true;
diff --git a/src/cryptonote_core/blockchain_storage.h b/src/cryptonote_core/blockchain_storage.h
index 55c0cb77e..0f7295516 100644
--- a/src/cryptonote_core/blockchain_storage.h
+++ b/src/cryptonote_core/blockchain_storage.h
@@ -81,8 +81,8 @@ namespace cryptonote
     blockchain_storage(tx_memory_pool& tx_pool):m_tx_pool(tx_pool), m_current_block_cumul_sz_limit(0), m_is_in_checkpoint_zone(false), m_is_blockchain_storing(false)
     {};
 
-    bool init() { return init(tools::get_default_data_dir()); }
-    bool init(const std::string& config_folder);
+    bool init() { return init(tools::get_default_data_dir(), true); }
+    bool init(const std::string& config_folder, bool testnet = false);
     bool deinit();
 
     void set_checkpoints(checkpoints&& chk_pts) { m_checkpoints = chk_pts; }
@@ -242,6 +242,7 @@ namespace cryptonote
     uint64_t get_adjusted_time();
     bool complete_timestamps_vector(uint64_t start_height, std::vector<uint64_t>& timestamps);
     bool update_next_comulative_size_limit();
+    bool store_genesis_block(bool testnet);
   };
 
 
diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp
index 637b8fea6..3ff139c95 100644
--- a/src/cryptonote_core/cryptonote_core.cpp
+++ b/src/cryptonote_core/cryptonote_core.cpp
@@ -116,14 +116,14 @@ namespace cryptonote
     return m_blockchain_storage.get_alternative_blocks_count();
   }
   //-----------------------------------------------------------------------------------------------
-  bool core::init(const boost::program_options::variables_map& vm)
+  bool core::init(const boost::program_options::variables_map& vm, bool testnet)
   {
     bool r = handle_command_line(vm);
 
     r = m_mempool.init(m_config_folder);
     CHECK_AND_ASSERT_MES(r, false, "Failed to initialize memory pool");
 
-    r = m_blockchain_storage.init(m_config_folder);
+    r = m_blockchain_storage.init(m_config_folder, testnet);
     CHECK_AND_ASSERT_MES(r, false, "Failed to initialize blockchain storage");
 
     r = m_miner.init(vm);
diff --git a/src/cryptonote_core/cryptonote_core.h b/src/cryptonote_core/cryptonote_core.h
index 704a65cf1..f050431ef 100644
--- a/src/cryptonote_core/cryptonote_core.h
+++ b/src/cryptonote_core/cryptonote_core.h
@@ -70,7 +70,7 @@ namespace cryptonote
 
      miner& get_miner(){return m_miner;}
      static void init_options(boost::program_options::options_description& desc);
-     bool init(const boost::program_options::variables_map& vm);
+     bool init(const boost::program_options::variables_map& vm, bool testnet);
      bool set_genesis_block(const block& b);
      bool deinit();
      uint64_t get_current_blockchain_height();
diff --git a/src/cryptonote_core/cryptonote_format_utils.cpp b/src/cryptonote_core/cryptonote_format_utils.cpp
index d023561c3..47cd0e159 100644
--- a/src/cryptonote_core/cryptonote_format_utils.cpp
+++ b/src/cryptonote_core/cryptonote_format_utils.cpp
@@ -686,6 +686,16 @@ namespace cryptonote
     miner::find_nonce_for_given_block(bl, 1, 0);
     return true;
   }
+
+  bool generate_testnet_genesis_block(cryptonote::block& b) {
+    if (!generate_genesis_block(b)) {
+      return false;
+    }
+
+    b.nonce += 1;
+    return true;
+  }
+
   //---------------------------------------------------------------
   bool get_block_longhash(const block& b, crypto::hash& res, uint64_t height)
   {
diff --git a/src/cryptonote_core/cryptonote_format_utils.h b/src/cryptonote_core/cryptonote_format_utils.h
index 9ed6c10a4..4457f6cc6 100644
--- a/src/cryptonote_core/cryptonote_format_utils.h
+++ b/src/cryptonote_core/cryptonote_format_utils.h
@@ -106,6 +106,7 @@ namespace cryptonote
   bool get_block_longhash(const block& b, crypto::hash& res, uint64_t height);
   crypto::hash get_block_longhash(const block& b, uint64_t height);
   bool generate_genesis_block(block& bl);
+  bool generate_testnet_genesis_block(block& bl);
   bool parse_and_validate_block_from_blob(const blobdata& b_blob, block& b);
   bool get_inputs_money_amount(const transaction& tx, uint64_t& money);
   uint64_t get_outs_money_amount(const transaction& tx);
diff --git a/src/daemon/daemon.cpp b/src/daemon/daemon.cpp
index 187970359..1041aa439 100644
--- a/src/daemon/daemon.cpp
+++ b/src/daemon/daemon.cpp
@@ -62,6 +62,8 @@ namespace
   const command_line::arg_descriptor<std::string> arg_log_file    = {"log-file", "", ""};
   const command_line::arg_descriptor<int>         arg_log_level   = {"log-level", "", LOG_LEVEL_0};
   const command_line::arg_descriptor<bool>        arg_console     = {"no-console", "Disable daemon console commands"};
+  const command_line::arg_descriptor<bool>        arg_testnet_on  = {"testnet", "Used to deploy test nets. Checkpoints and hardcoded seeds are ignored, "
+    "network id is changed. Use it with --data-dir flag. The wallet must be launched with --testnet flag.", false};
 }
 
 bool command_line_preprocessor(const boost::program_options::variables_map& vm)
@@ -123,7 +125,7 @@ int main(int argc, char* argv[])
   command_line::add_arg(desc_cmd_sett, arg_log_file);
   command_line::add_arg(desc_cmd_sett, arg_log_level);
   command_line::add_arg(desc_cmd_sett, arg_console);
-  
+  command_line::add_arg(desc_cmd_sett, arg_testnet_on);
 
   cryptonote::core::init_options(desc_cmd_sett);
   cryptonote::core_rpc_server::init_options(desc_cmd_sett);
@@ -191,7 +193,14 @@ int main(int argc, char* argv[])
 
   //create objects and link them
   cryptonote::core ccore(NULL);
-  ccore.set_checkpoints(std::move(checkpoints));  
+
+  bool testnet_mode = command_line::get_arg(vm, arg_testnet_on);
+  if (testnet_mode) {
+    LOG_PRINT_L0("Starting in testnet mode!");
+  } else {
+    ccore.set_checkpoints(std::move(checkpoints));
+  }
+
   cryptonote::t_cryptonote_protocol_handler<cryptonote::core> cprotocol(ccore, NULL);
   nodetool::node_server<cryptonote::t_cryptonote_protocol_handler<cryptonote::core> > p2psrv(cprotocol);
   cryptonote::core_rpc_server rpc_server(ccore, p2psrv);
@@ -201,7 +210,7 @@ int main(int argc, char* argv[])
 
   //initialize objects
   LOG_PRINT_L0("Initializing P2P server...");
-  res = p2psrv.init(vm);
+  res = p2psrv.init(vm, testnet_mode);
   CHECK_AND_ASSERT_MES(res, 1, "Failed to initialize P2P server.");
   LOG_PRINT_L0("P2P server initialized OK");
 
@@ -217,7 +226,7 @@ int main(int argc, char* argv[])
 
   //initialize core here
   LOG_PRINT_L0("Initializing core...");
-  res = ccore.init(vm);
+  res = ccore.init(vm, testnet_mode);
   CHECK_AND_ASSERT_MES(res, 1, "Failed to initialize core");
   LOG_PRINT_L0("Core initialized OK");
   
diff --git a/src/p2p/net_node.h b/src/p2p/net_node.h
index d7576d5dd..bca18c906 100644
--- a/src/p2p/net_node.h
+++ b/src/p2p/net_node.h
@@ -79,13 +79,13 @@ namespace nodetool
   public:
     typedef t_payload_net_handler payload_net_handler;
     // Some code
-    node_server(t_payload_net_handler& payload_handler):m_payload_handler(payload_handler), m_allow_local_ip(false), m_hide_my_port(false)
+    node_server(t_payload_net_handler& payload_handler):m_payload_handler(payload_handler), m_allow_local_ip(false), m_hide_my_port(false), m_network_id(MONERO_NETWORK)
     {}
 
     static void init_options(boost::program_options::options_description& desc);
 
     bool run();
-    bool init(const boost::program_options::variables_map& vm);
+    bool init(const boost::program_options::variables_map& vm, bool testnet);
     bool deinit();
     bool send_stop_signal();
     uint32_t get_this_peer_port(){return m_listenning_port;}
@@ -229,6 +229,7 @@ namespace nodetool
     uint64_t m_peer_livetime;
     //keep connections to initiate some interactions
     net_server m_net_server;
+    boost::uuids::uuid m_network_id;
   };
 }
 
diff --git a/src/p2p/net_node.inl b/src/p2p/net_node.inl
index ee401ce42..211f5064a 100644
--- a/src/p2p/net_node.inl
+++ b/src/p2p/net_node.inl
@@ -224,19 +224,23 @@ namespace nodetool
   #define ADD_HARDCODED_SEED_NODE(addr) append_net_address(m_seed_nodes, addr);
   //-----------------------------------------------------------------------------------
   template<class t_payload_net_handler>
-  bool node_server<t_payload_net_handler>::init(const boost::program_options::variables_map& vm)
+  bool node_server<t_payload_net_handler>::init(const boost::program_options::variables_map& vm, bool testnet)
   {
-    ADD_HARDCODED_SEED_NODE("62.210.78.186:18080");
-    ADD_HARDCODED_SEED_NODE("195.12.60.154:18080");
-    ADD_HARDCODED_SEED_NODE("54.241.246.125:18080");
-    ADD_HARDCODED_SEED_NODE("107.170.157.169:18080");
-    ADD_HARDCODED_SEED_NODE("54.207.112.216:18080");
-    ADD_HARDCODED_SEED_NODE("78.27.112.54:18080");
-    ADD_HARDCODED_SEED_NODE("209.222.30.57:18080");
-    ADD_HARDCODED_SEED_NODE("80.71.13.55:18080");
-    ADD_HARDCODED_SEED_NODE("107.178.112.126:18080");
-    ADD_HARDCODED_SEED_NODE("107.158.233.98:18080");
-    ADD_HARDCODED_SEED_NODE("64.22.111.2:18080");
+    if (!testnet) {
+      ADD_HARDCODED_SEED_NODE("62.210.78.186:18080");
+      ADD_HARDCODED_SEED_NODE("195.12.60.154:18080");
+      ADD_HARDCODED_SEED_NODE("54.241.246.125:18080");
+      ADD_HARDCODED_SEED_NODE("107.170.157.169:18080");
+      ADD_HARDCODED_SEED_NODE("54.207.112.216:18080");
+      ADD_HARDCODED_SEED_NODE("78.27.112.54:18080");
+      ADD_HARDCODED_SEED_NODE("209.222.30.57:18080");
+      ADD_HARDCODED_SEED_NODE("80.71.13.55:18080");
+      ADD_HARDCODED_SEED_NODE("107.178.112.126:18080");
+      ADD_HARDCODED_SEED_NODE("107.158.233.98:18080");
+      ADD_HARDCODED_SEED_NODE("64.22.111.2:18080");
+    } else {
+      m_network_id.data[0] += 1;
+    }
 
     bool res = handle_command_line(vm);
     CHECK_AND_ASSERT_MES(res, false, "Failed to handle command line");
@@ -410,7 +414,7 @@ namespace nodetool
         return;
       }
 
-      if(rsp.node_data.network_id != MONERO_NETWORK)
+      if(rsp.node_data.network_id != m_network_id)
       {
         LOG_ERROR_CCONTEXT("COMMAND_HANDSHAKE Failed, wrong network!  (" << epee::string_tools::get_str_from_guid_a(rsp.node_data.network_id) << "), closing connection.");
         return;
@@ -818,7 +822,7 @@ namespace nodetool
       node_data.my_port = m_external_port ? m_external_port : m_listenning_port;
     else 
       node_data.my_port = 0;
-    node_data.network_id = MONERO_NETWORK;
+    node_data.network_id = m_network_id;
     return true;
   }
   //-----------------------------------------------------------------------------------
@@ -1038,7 +1042,7 @@ namespace nodetool
   template<class t_payload_net_handler>
   int node_server<t_payload_net_handler>::handle_handshake(int command, typename COMMAND_HANDSHAKE::request& arg, typename COMMAND_HANDSHAKE::response& rsp, p2p_connection_context& context)
   {
-    if(arg.node_data.network_id != MONERO_NETWORK)
+    if(arg.node_data.network_id != m_network_id)
     {
 
       LOG_PRINT_CCONTEXT_L1("WRONG NETWORK AGENT CONNECTED! id=" << epee::string_tools::get_str_from_guid_a(arg.node_data.network_id));
diff --git a/src/simplewallet/simplewallet.cpp b/src/simplewallet/simplewallet.cpp
index e822e6636..4312981e2 100644
--- a/src/simplewallet/simplewallet.cpp
+++ b/src/simplewallet/simplewallet.cpp
@@ -72,6 +72,7 @@ namespace
   const command_line::arg_descriptor<bool> arg_non_deterministic = {"non-deterministic", "creates non-deterministic view and spend keys", false};
   const command_line::arg_descriptor<int> arg_daemon_port = {"daemon-port", "Use daemon instance at port <arg> instead of 8081", 0};
   const command_line::arg_descriptor<uint32_t> arg_log_level = {"set_log", "", 0, true};
+  const command_line::arg_descriptor<bool> arg_testnet = {"testnet", "Used to deploy test nets. The daemon must be launched with --testnet flag", false};
 
   const command_line::arg_descriptor< std::vector<std::string> > arg_command = {"command", ""};
 
@@ -334,6 +335,8 @@ bool simple_wallet::init(const boost::program_options::variables_map& vm)
   if (m_daemon_address.empty())
     m_daemon_address = std::string("http://") + m_daemon_host + ":" + std::to_string(m_daemon_port);
 
+  bool testnet = command_line::get_arg(vm, arg_testnet);
+
   tools::password_container pwd_container;
   if (command_line::has_arg(vm, arg_password))
   {
@@ -378,12 +381,12 @@ bool simple_wallet::init(const boost::program_options::variables_map& vm)
           return false;
       }
     }
-    bool r = new_wallet(m_wallet_file, pwd_container.password(), m_recovery_key, m_restore_deterministic_wallet, m_non_deterministic);
+    bool r = new_wallet(m_wallet_file, pwd_container.password(), m_recovery_key, m_restore_deterministic_wallet, m_non_deterministic, testnet);
     CHECK_AND_ASSERT_MES(r, false, "account creation failed");
   }
   else
   {
-    bool r = open_wallet(m_wallet_file, pwd_container.password());
+    bool r = open_wallet(m_wallet_file, pwd_container.password(), testnet);
     CHECK_AND_ASSERT_MES(r, false, "could not open account");
   }
 
@@ -423,11 +426,11 @@ bool simple_wallet::try_connect_to_daemon()
 }
 
 //----------------------------------------------------------------------------------------------------
-bool simple_wallet::new_wallet(const string &wallet_file, const std::string& password, const crypto::secret_key& recovery_key, bool recover, bool two_random)
+bool simple_wallet::new_wallet(const string &wallet_file, const std::string& password, const crypto::secret_key& recovery_key, bool recover, bool two_random, bool testnet)
 {
   m_wallet_file = wallet_file;
 
-  m_wallet.reset(new tools::wallet2());
+  m_wallet.reset(new tools::wallet2(testnet));
   m_wallet->callback(this);
 
   crypto::secret_key recovery_val;
@@ -471,10 +474,10 @@ bool simple_wallet::new_wallet(const string &wallet_file, const std::string& pas
   return true;
 }
 //----------------------------------------------------------------------------------------------------
-bool simple_wallet::open_wallet(const string &wallet_file, const std::string& password)
+bool simple_wallet::open_wallet(const string &wallet_file, const std::string& password, bool testnet)
 {
   m_wallet_file = wallet_file;
-  m_wallet.reset(new tools::wallet2());
+  m_wallet.reset(new tools::wallet2(testnet));
   m_wallet->callback(this);
 
   try
@@ -1075,6 +1078,7 @@ int main(int argc, char* argv[])
   command_line::add_arg(desc_params, arg_restore_deterministic_wallet );
   command_line::add_arg(desc_params, arg_non_deterministic );
   command_line::add_arg(desc_params, arg_electrum_seed );
+  command_line::add_arg(desc_params, arg_testnet);
   tools::wallet_rpc_server::init_options(desc_params);
 
   po::positional_options_description positional_options;
@@ -1144,6 +1148,7 @@ int main(int argc, char* argv[])
       return 1;
     }
 
+    bool testnet = command_line::get_arg(vm, arg_testnet);
     std::string wallet_file     = command_line::get_arg(vm, arg_wallet_file);
     std::string wallet_password = command_line::get_arg(vm, arg_password);
     std::string daemon_address  = command_line::get_arg(vm, arg_daemon_address);
@@ -1156,7 +1161,7 @@ int main(int argc, char* argv[])
     if (daemon_address.empty())
       daemon_address = std::string("http://") + daemon_host + ":" + std::to_string(daemon_port);
 
-    tools::wallet2 wal;
+    tools::wallet2 wal(testnet);
     try
     {
       LOG_PRINT_L0("Loading wallet...");
diff --git a/src/simplewallet/simplewallet.h b/src/simplewallet/simplewallet.h
index 41197b4bb..17affd564 100644
--- a/src/simplewallet/simplewallet.h
+++ b/src/simplewallet/simplewallet.h
@@ -66,8 +66,8 @@ namespace cryptonote
 
     bool run_console_handler();
 
-    bool new_wallet(const std::string &wallet_file, const std::string& password, const crypto::secret_key& recovery_key = crypto::secret_key(), bool recover = false, bool two_random = false);
-    bool open_wallet(const std::string &wallet_file, const std::string& password);
+    bool new_wallet(const std::string &wallet_file, const std::string& password, const crypto::secret_key& recovery_key = crypto::secret_key(), bool recover = false, bool two_random = false, bool testnet = false);
+    bool open_wallet(const std::string &wallet_file, const std::string& password, bool testnet);
     bool close_wallet();
 
     bool viewkey(const std::vector<std::string> &args = std::vector<std::string>());
diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 48aa164ab..be857c78a 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -420,9 +420,6 @@ bool wallet2::clear()
 {
   m_blockchain.clear();
   m_transfers.clear();
-  cryptonote::block b;
-  cryptonote::generate_genesis_block(b);
-  m_blockchain.push_back(get_block_hash(b));
   m_local_bc_height = 1;
   return true;
 }
@@ -501,6 +498,10 @@ crypto::secret_key wallet2::generate(const std::string& wallet_, const std::stri
   r = file_io_utils::save_string_to_file(m_wallet_file + ".address.txt", m_account.get_public_address_str());
   if(!r) LOG_PRINT_RED_L0("String with address text not saved");
 
+  cryptonote::block b;
+  generate_genesis(b);
+  m_blockchain.push_back(get_block_hash(b));
+
   store();
   return retval;
 }
@@ -573,15 +574,28 @@ void wallet2::load(const std::string& wallet_, const std::string& password)
     m_account_public_address.m_view_public_key  != m_account.get_keys().m_account_address.m_view_public_key,
     error::wallet_files_doesnt_correspond, m_keys_file, m_wallet_file);
 
-  if(m_blockchain.empty())
+  cryptonote::block genesis;
+  generate_genesis(genesis);
+  crypto::hash genesis_hash = get_block_hash(genesis);
+
+  if (m_blockchain.empty())
   {
-    cryptonote::block b;
-    cryptonote::generate_genesis_block(b);
-    m_blockchain.push_back(get_block_hash(b));
+    m_blockchain.push_back(genesis_hash);
   }
+  else
+  {
+    check_genesis(genesis_hash);
+  }
+
   m_local_bc_height = m_blockchain.size();
 }
 //----------------------------------------------------------------------------------------------------
+void wallet2::check_genesis(const crypto::hash& genesis_hash) {
+  std::string what("Genesis block missmatch. You probably use wallet without testnet flag with blockchain from test network or vice versa");
+
+  THROW_WALLET_EXCEPTION_IF(genesis_hash != m_blockchain[0], error::wallet_internal_error, what);
+}
+//----------------------------------------------------------------------------------------------------
 void wallet2::store()
 {
   bool r = tools::serialize_obj_to_file(*this, m_wallet_file);
@@ -918,4 +932,13 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions(std::vector<crypto
     }
   }
 }
+
+//----------------------------------------------------------------------------------------------------
+void wallet2::generate_genesis(cryptonote::block& b) {
+  if (m_testnet) {
+    cryptonote::generate_testnet_genesis_block(b);
+  } else {
+    cryptonote::generate_genesis_block(b);
+  }
+}
 }
diff --git a/src/wallet/wallet2.h b/src/wallet/wallet2.h
index a6f4c5c17..28788f693 100644
--- a/src/wallet/wallet2.h
+++ b/src/wallet/wallet2.h
@@ -80,9 +80,9 @@ namespace tools
 
   class wallet2
   {
-    wallet2(const wallet2&) : m_run(true), m_callback(0) {};
+    wallet2(const wallet2&) : m_run(true), m_callback(0), m_testnet(false) {};
   public:
-    wallet2() : m_run(true), m_callback(0) {};
+    wallet2(bool testnet = false) : m_run(true), m_callback(0), m_testnet(testnet) {};
     struct transfer_details
     {
       uint64_t m_block_height;
@@ -209,6 +209,8 @@ namespace tools
     bool prepare_file_names(const std::string& file_path);
     void process_unconfirmed(const cryptonote::transaction& tx);
     void add_unconfirmed_tx(const cryptonote::transaction& tx, uint64_t change_amount);
+    void generate_genesis(cryptonote::block& b);
+    void check_genesis(const crypto::hash& genesis_hash); //throws
 
     cryptonote::account_base m_account;
     std::string m_daemon_address;
@@ -228,6 +230,7 @@ namespace tools
     std::atomic<bool> m_run;
 
     i_wallet2_callback* m_callback;
+    bool m_testnet;
   };
 }
 BOOST_CLASS_VERSION(tools::wallet2, 7)
diff --git a/tests/core_proxy/core_proxy.cpp b/tests/core_proxy/core_proxy.cpp
index 5f7bbc095..098b9878a 100644
--- a/tests/core_proxy/core_proxy.cpp
+++ b/tests/core_proxy/core_proxy.cpp
@@ -112,7 +112,7 @@ int main(int argc, char* argv[])
   //initialize objects
 
   LOG_PRINT_L0("Initializing p2p server...");
-  bool res = p2psrv.init(vm);
+  bool res = p2psrv.init(vm, false);
   CHECK_AND_ASSERT_MES(res, 1, "Failed to initialize p2p server.");
   LOG_PRINT_L0("P2p server initialized OK");
 
diff --git a/tests/core_tests/chaingen.h b/tests/core_tests/chaingen.h
index 685323127..d2990e009 100644
--- a/tests/core_tests/chaingen.h
+++ b/tests/core_tests/chaingen.h
@@ -487,7 +487,7 @@ inline bool do_replay_events(std::vector<test_event_entry>& events)
 
   cryptonote::cryptonote_protocol_stub pr; //TODO: stub only for this kind of test, make real validation of relayed objects
   cryptonote::core c(&pr);
-  if (!c.init(vm))
+  if (!c.init(vm, false))
   {
     std::cout << concolor::magenta << "Failed to init core" << concolor::normal << std::endl;
     return false;