diff --git a/kernel/include/net/tcp_layer.hpp b/kernel/include/net/tcp_layer.hpp
index 1379c948..241b9e1b 100644
--- a/kernel/include/net/tcp_layer.hpp
+++ b/kernel/include/net/tcp_layer.hpp
@@ -46,6 +46,9 @@ struct tcp_connection {
     uint32_t ack_number = 0; ///< The next ack number
     uint32_t seq_number = 0; ///< The next sequence number
 
+    uint32_t fina_ack_number = 0; ///< The next ack number (from finalize)
+    uint32_t fina_seq_number = 0; ///< The next sequence number (from finalize)
+
     network::socket* socket = nullptr; ///< Pointer to the user socket
 
     tcp_connection() : listening(false) {
diff --git a/kernel/src/net/tcp_layer.cpp b/kernel/src/net/tcp_layer.cpp
index 92525832..86bc3e4d 100644
--- a/kernel/src/net/tcp_layer.cpp
+++ b/kernel/src/net/tcp_layer.cpp
@@ -465,6 +465,9 @@ std::expected<void> network::tcp::layer::finalize_packet(network::interface_desc
             if (correct_ack) {
                 logging::logf(logging::log_level::TRACE, "tcp:finalize: Received ACK\n");
 
+                connection.fina_ack_number = switch_endian_32(tcp_header->ack_number);
+                connection.fina_seq_number = switch_endian_32(tcp_header->sequence_number);
+
                 received = true;
 
                 break;
@@ -529,6 +532,9 @@ std::expected<size_t> network::tcp::layer::connect(network::socket& sock, networ
         return std::make_unexpected<size_t, size_t>(status.error());
     }
 
+    connection.seq_number = connection.fina_ack_number;
+    connection.ack_number = connection.fina_seq_number + 1;
+
     // The SYN/ACK is ensured by finalize_packet
 
     logging::logf(logging::log_level::TRACE, "tcp:connect: Received SYN/ACK\n");
@@ -639,6 +645,10 @@ std::expected<size_t> network::tcp::layer::accept(network::socket& socket){
     child_sock.connection_data = &child_connection;
     child_connection.socket = &child_sock;
 
+    // Child connection numbers
+    child_connection.seq_number = connection.seq_number;
+    child_connection.ack_number = connection.ack_number;
+
     child_connection.connected = true;
 
     auto& interface = network::select_interface(source_address);
@@ -678,7 +688,7 @@ std::expected<size_t> network::tcp::layer::accept(network::socket& socket){
 }
 
 std::expected<size_t> network::tcp::layer::accept(network::socket& socket, size_t ms){
-
+    //TODO
 }
 
 std::expected<void> network::tcp::layer::server_start(network::socket& sock, size_t server_port, network::ip::address server) {