diff --git a/2023f-wip/ice-traversal/client.py b/2023f-wip/ice-traversal/client.py
new file mode 100644
index 000000000..41077da58
--- /dev/null
+++ b/2023f-wip/ice-traversal/client.py
@@ -0,0 +1,70 @@
+import asyncio
+import json
+import sys
+from aiortc import RTCPeerConnection, RTCDataChannel, RTCSessionDescription
+from aioquic.asyncio import connect
+from aioquic.asyncio.protocol import QuicConnectionProtocol
+from aioquic.quic.configuration import QuicConfiguration
+from aioquic.quic.events import StreamDataReceived
+
+async def run(peer_connection: RTCPeerConnection, is_offer: bool):
+    if is_offer:
+        data_channel = peer_connection.createDataChannel("chat")
+        offer = await peer_connection.createOffer()
+        await peer_connection.setLocalDescription(offer)
+        print(json.dumps({"sdp": peer_connection.localDescription.sdp, "type": peer_connection.localDescription.type}))
+        answer = json.loads(input("Enter answer: "))
+        await peer_connection.setRemoteDescription(RTCSessionDescription(sdp=answer["sdp"], type=answer["type"]))
+    else:
+        offer = json.loads(input("Enter offer: "))
+        await peer_connection.setRemoteDescription(RTCSessionDescription(sdp=offer["sdp"], type=offer["type"]))
+
+        answer = await peer_connection.createAnswer()
+        await peer_connection.setLocalDescription(answer)
+        print(json.dumps({"sdp": peer_connection.localDescription.sdp, "type": peer_connection.localDescription.type}))
+
+    @peer_connection.on("icecandidate")
+    async def on_icecandidate(candidate):
+        print(json.dumps({"candidate": candidate}))
+    
+    @peer_connection.on("connectionstatechange")
+    async def on_connectionstatechange():
+        print(f"Connection state is {peer_connection.connectionState}")
+        if peer_connection.connectionState in ["connected", "completed"]:
+            print("Connection established!")
+
+
+    await asyncio.sleep(30)
+
+async def main():
+    is_offer = len(sys.argv) > 1 and sys.argv[1] == "offer"
+    peer_connection = RTCPeerConnection()
+    try:
+        await run(peer_connection, is_offer)
+    finally:
+        await peer_connection.close()
+
+if __name__ == "__main__":
+    asyncio.run(main())
+
+class EchoClientProtocol(QuicConnectionProtocol):
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.received_data = asyncio.Queue()
+
+    def quic_event_received(self, event):
+        print("Received: ", event)
+        if isinstance(event, StreamDataReceived):
+            self.received_data.put_nowait(event.data)
+            if event.end_stream:
+                self.close()
+
+async def run_quic_client():
+    configuration = QuicConfiguration(is_client=True)
+    configuration.load_verify_locations("../tests/pycacert.pem")
+
+    async with connect("localhost", 4433, configuration=configuration, create_protocol=EchoClientProtocol, local_port=12345) as protocol:
+        stream_id = protocol._quic.get_next_available_stream_id()
+        protocol._quic.send_stream_data(stream_id, b"Hello!", end_stream=False)
+        received_data = await protocol.received_data.get()
+        print("Data Received:", received_data)
diff --git a/quic-traversal/client.py b/2023f-wip/quic-traversal/client.py
similarity index 77%
rename from quic-traversal/client.py
rename to 2023f-wip/quic-traversal/client.py
index 8c255791f..cacce6787 100644
--- a/quic-traversal/client.py
+++ b/2023f-wip/quic-traversal/client.py
@@ -1,4 +1,5 @@
 import asyncio
+import m_socket
 from aioquic.asyncio import connect
 from aioquic.asyncio.protocol import QuicConnectionProtocol
 from aioquic.quic.configuration import QuicConfiguration
@@ -18,9 +19,10 @@ def quic_event_received(self, event):
 
 async def run_quic_client():
     configuration = QuicConfiguration(is_client=True)
-    configuration.load_verify_locations("../tests/pycacert.pem")
-
-    async with connect("35.232.66.96", 12346, configuration=configuration, create_protocol=EchoClientProtocol, local_port=12345) as protocol:
+    configuration.load_verify_locations("../../tests/pycacert.pem")
+    sock = m_socket.create_socket("localhost", 12345)
+    # 35.232.66.96
+    async with connect("localhost", 12346, configuration=configuration, create_protocol=EchoClientProtocol, local_port=1234, sock=sock) as protocol:
         stream_id = protocol._quic.get_next_available_stream_id()
         protocol._quic.send_stream_data(stream_id, b"Hello!", end_stream=False)
         received_data = await protocol.received_data.get()
diff --git a/2023f-wip/quic-traversal/m_socket.py b/2023f-wip/quic-traversal/m_socket.py
new file mode 100644
index 000000000..7df9e1996
--- /dev/null
+++ b/2023f-wip/quic-traversal/m_socket.py
@@ -0,0 +1,12 @@
+import socket
+
+def create_socket(local_host, local_port):
+    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    completed = False
+    try:
+        sock.bind((local_host, local_port))
+        completed = True
+    finally:
+        if not completed:
+            sock.close()
+    return sock
diff --git a/quic-traversal/server.py b/2023f-wip/quic-traversal/server.py
similarity index 73%
rename from quic-traversal/server.py
rename to 2023f-wip/quic-traversal/server.py
index b876ba233..114157883 100644
--- a/quic-traversal/server.py
+++ b/2023f-wip/quic-traversal/server.py
@@ -1,6 +1,5 @@
 import asyncio
-import os
-import time
+import m_socket
 from aioquic.asyncio import serve, connect
 from aioquic.asyncio.protocol import QuicConnectionProtocol
 from aioquic.quic.configuration import QuicConfiguration
@@ -19,17 +18,19 @@ def quic_event_received(self, event):
 
 async def run_quic_server():
     configuration = QuicConfiguration(is_client=False)
-    configuration.load_verify_locations("../tests/pycacert.pem")
-    configuration.load_cert_chain("../tests/ssl_cert.pem", "../tests/ssl_key.pem")
-    await serve("localhost", 12346, configuration=configuration, create_protocol=EchoQuicProtocol)
-    await run_quic_client()
+    configuration.load_verify_locations("../../tests/pycacert.pem")
+    configuration.load_cert_chain("../../tests/ssl_cert.pem", "../../tests/ssl_key.pem")
+    sock = m_socket.create_socket("localhost", 12346)
+
+    await serve("localhost", 12346, configuration=configuration, create_protocol=EchoQuicProtocol, sock=sock)
+    await run_quic_client(sock=sock)
     await asyncio.Future()
 
-async def run_quic_client():
+async def run_quic_client(sock):
     print("Running client")
     configuration = QuicConfiguration(is_client=True)
-    configuration.load_verify_locations("../tests/pycacert.pem")
-    async with connect("localhost", 12345, configuration=configuration, create_protocol=EchoQuicProtocol, local_port=12346) as protocol:
+    configuration.load_verify_locations("../../tests/pycacert.pem")
+    async with connect("localhost", 12345, configuration=configuration, create_protocol=EchoQuicProtocol, local_port=12346, sock=sock) as protocol:
         stream_id = protocol._quic.get_next_available_stream_id()
         protocol._quic.send_stream_data(stream_id, b"Hello!", end_stream=False)
         received_data = await protocol.received_data.get()
diff --git a/src/aioquic/asyncio/client.py b/src/aioquic/asyncio/client.py
index 18ae1c9e7..eab7846f7 100644
--- a/src/aioquic/asyncio/client.py
+++ b/src/aioquic/asyncio/client.py
@@ -23,6 +23,7 @@ async def connect(
     token_handler: Optional[QuicTokenHandler] = None,
     wait_connected: bool = True,
     local_port: int = 0,
+    sock = None
 ) -> AsyncGenerator[QuicConnectionProtocol, None]:
     """
     Connect to a QUIC server at the given `host` and `port`.
@@ -47,13 +48,15 @@ async def connect(
     * ``local_port`` is the UDP port number that this client wants to bind.
     """
     loop = asyncio.get_event_loop()
-    local_host = "::"
+    local_host = "localhost"
 
     # lookup remote address
-    infos = await loop.getaddrinfo(host, port, type=socket.SOCK_DGRAM)
+    infos = await loop.getaddrinfo(host, port, type=socket.SOCK_DGRAM, family=socket.AF_INET)
     addr = infos[0][4]
-    if len(addr) == 2:
-        addr = ("::ffff:" + addr[0], addr[1], 0, 0)
+    print("addr:", addr)
+    if len(addr) == 4:
+        # addr = ("::ffff:" + addr[0], addr[1], 0, 0)
+        addr = (addr[0], addr[1])
 
     # prepare QUIC connection
     if configuration is None:
@@ -66,9 +69,9 @@ async def connect(
         token_handler=token_handler,
     )
 
-    # explicitly enable IPv4/IPv6 dual stack
-    sock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
-    completed = False
+    # # explicitly enable IPv4/IPv6 dual stack
+    # sock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
+    # completed = False
     # try:
     #     sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_V6ONLY, 0)
     #     sock.bind((local_host, local_port, 0, 0))
@@ -84,6 +87,7 @@ async def connect(
     protocol = cast(QuicConnectionProtocol, protocol)
     try:
         protocol.connect(addr)
+        await protocol.ping()
         if wait_connected:
             await protocol.wait_connected()
         yield protocol
diff --git a/src/aioquic/asyncio/protocol.py b/src/aioquic/asyncio/protocol.py
index 8b4a6b5e9..13b532a9b 100644
--- a/src/aioquic/asyncio/protocol.py
+++ b/src/aioquic/asyncio/protocol.py
@@ -13,7 +13,6 @@ def __init__(
         self, quic: QuicConnection, stream_handler: Optional[QuicStreamHandler] = None
     ):
         loop = asyncio.get_event_loop()
-
         self._closed = asyncio.Event()
         self._connected = False
         self._connected_waiter: Optional[asyncio.Future[None]] = None
@@ -97,10 +96,9 @@ def transmit(self) -> None:
         Send pending datagrams to the peer and arm the timer if needed.
         """
         self._transmit_task = None
-
         # send datagrams
         for data, addr in self._quic.datagrams_to_send(now=self._loop.time()):
-            print("Sending to", addr)
+            print("Sending to", addr, self.transmit_count)
             self._transport.sendto(data, addr)
 
         # re-arm timer
diff --git a/src/aioquic/asyncio/server.py b/src/aioquic/asyncio/server.py
index b5f6cd8d7..557f8fa24 100644
--- a/src/aioquic/asyncio/server.py
+++ b/src/aioquic/asyncio/server.py
@@ -1,5 +1,6 @@
 import asyncio
 import os
+import socket
 from functools import partial
 from typing import Callable, Dict, Optional, Text, Union, cast
 
@@ -173,6 +174,7 @@ async def serve(
     session_ticket_handler: Optional[SessionTicketHandler] = None,
     retry: bool = False,
     stream_handler: QuicStreamHandler = None,
+    sock = None
 ) -> QuicServer:
     """
     Start a QUIC server at the given `host` and `port`.
@@ -198,9 +200,8 @@ async def serve(
       created. It must accept two arguments: a :class:`asyncio.StreamReader`
       and a :class:`asyncio.StreamWriter`.
     """
-
+    print("Serving")
     loop = asyncio.get_event_loop()
-
     _, protocol = await loop.create_datagram_endpoint(
         lambda: QuicServer(
             configuration=configuration,
@@ -210,6 +211,8 @@ async def serve(
             retry=retry,
             stream_handler=stream_handler,
         ),
-        local_addr=(host, port),
+        # local_addr=(host, port),
+        sock=sock,
+        # family=socket.AF_INET,
     )
     return protocol