Fix IP/Port packing issue

bittensor/chain_data.py

@@ -255,10 +255,15 @@ def from_string(cls, s: str) -> "AxonInfo":
     @classmethod
     def from_neuron_info(cls, neuron_info: dict) -> "AxonInfo":
         """Converts a dictionary to an axon_info object."""
+
+        ip, port = net.unpack_encoded_ip_port(
+            neuron_info["axon_info"]["ip"], neuron_info["axon_info"]["port"]
+        )
+
         return cls(
             version=neuron_info["axon_info"]["version"],
-            ip=net.int_to_ip(int(neuron_info["axon_info"]["ip"])),
-            port=neuron_info["axon_info"]["port"],
+            ip=ip,
+            port=port,
             ip_type=neuron_info["axon_info"]["ip_type"],
             hotkey=neuron_info["hotkey"],
             coldkey=neuron_info["coldkey"],

bittensor/utils/networking.py

@@ -61,6 +61,26 @@ def ip_to_int(str_val: str) -> int:
     return int(netaddr.IPAddress(str_val))
 
 
+def unpack_encoded_ip_port(ip_str: str, port: int) -> tuple:
+    r"""Unpacks an encoded IP and port if they are encoded together.
+    Args:
+        ip_str (:type:`str`, `required`):
+            The encoded IP address string.
+        port (:type:`int`, `required`):
+            The port number.
+    Returns:
+        tuple: A tuple containing the IP address string and port number.
+    Raises:
+        netaddr.core.AddrFormatError (Exception):
+            Raised when the passed IP string is not a valid IP int value.
+    """
+    if port == 0:
+        port = ip_str & 0xFFFF
+        ip = ip_str >> 16
+        return int_to_ip(ip), port
+    return int_to_ip(ip_str), port
+
+
 def ip_version(str_val: str) -> int:
     r"""Returns the ip version (IPV4 or IPV6).
     arg:

tests/unit_tests/utils/test_networking.py

@@ -25,6 +25,14 @@ def test_int_to_ip_range():
         )
 
 
+def test_packed_ip_port_with_port_0():
+    """Test packing and unpacking IP and port."""
+    assert utils.networking.unpack_encoded_ip_port(184046647580618, 0) == (
+        "167.99.179.13",
+        6090,
+    )
+
+
 def test_int_to_ip4_max():
     """Test converting integer to maximum IPv4 address."""
     assert utils.networking.int_to_ip(4294967295) == "255.255.255.255"