diff --git a/mytoolkit/commands/git.py b/mytoolkit/commands/git.py
index 613c3ba..248bc53 100644
--- a/mytoolkit/commands/git.py
+++ b/mytoolkit/commands/git.py
@@ -112,6 +112,24 @@ def _restore_baseline(proxy: str, port: int | None) -> str:
     return proxy
 
 
+def _primary_lan_ip() -> str | None:
+    """Wi-Fi/Ethernet IPv4 (en0). Bridged Parallels guests use this, not *.*.*.2."""
+    if sys.platform != "darwin":
+        return None
+    try:
+        out = subprocess.check_output(
+            ["ipconfig", "getifaddr", "en0"],
+            text=True,
+            stderr=subprocess.DEVNULL,
+        )
+    except (OSError, subprocess.CalledProcessError):
+        return None
+    ip = out.strip()
+    if not ip or ip.startswith("127."):
+        return None
+    return ip
+
+
 def _parallels_host_ips() -> list[str]:
     """Mac IPs that Parallels guests use to reach this host (auto from ifconfig)."""
     if sys.platform != "darwin":
@@ -130,6 +148,9 @@ def _parallels_host_ips() -> list[str]:
         ip = match.group(1)
         if ip not in ips:
             ips.append(ip)
+    lan = _primary_lan_ip()
+    if lan and lan not in ips:
+        ips.append(lan)
     return ips
 
 
@@ -483,6 +504,20 @@ def _collect_forward_pids(port: int) -> list[int]:
     return pids
 
 
+def _should_kill_proxy_process(state: dict[str, Any] | None, name: str) -> bool:
+    """Kill FastGitHub only if this CLI spawned it.
+
+    Native `fastgithub start` / CI `ensure-fastgithub.sh` / a leftover instance
+    must keep running when `mytoolkit git proxy stop` only tears down socat
+    and git config.
+    """
+    if not state or state.get("name") != name:
+        return False
+    if state.get("adopted"):
+        return False
+    return True
+
+
 def _start_daemon(name: str, *, set_git: bool) -> None:
     # Clear a proxy left pointing at a dead daemon by an earlier aborted run.
     _restore_stale_git_proxy()
@@ -498,6 +533,7 @@ def _start_daemon(name: str, *, set_git: bool) -> None:
     old_https = _restore_baseline(old_https, port)
     proxy_pid: int | None = None
     forward_pids: list[int] = []
+    adopted = False
 
     if port is None:
         click.secho(
@@ -526,10 +562,12 @@ def _start_daemon(name: str, *, set_git: bool) -> None:
         pids = _procs_matching(_pids_listening_on("127.0.0.1", port), name)
         if pids:
             click.secho(
-                f"{name} already listening on 127.0.0.1:{port} (pid={pids[0]})",
+                f"{name} already listening on 127.0.0.1:{port} (pid={pids[0]}) "
+                "— adopting, stop will not kill it",
                 fg="cyan",
             )
             proxy_pid = pids[0]
+            adopted = True
         else:
             click.secho(
                 f"WARN: 127.0.0.1:{port} is held by an unknown process — "
@@ -585,6 +623,7 @@ def _start_daemon(name: str, *, set_git: bool) -> None:
             "port": port,
             "proxy_pid": proxy_pid,
             "forward_pids": forward_pids,
+            "adopted": adopted,
             "set_git": set_git,
             "old_http": old_http if set_git else None,
             "old_https": old_https if set_git else None,
@@ -623,8 +662,21 @@ def _stop_daemon(name: str | None) -> None:
             click.secho(f"{name} socat: nothing listening on guest IPs", fg="yellow")
 
         proxy_pids = _procs_matching(_pids_listening_on("127.0.0.1", port), name)
-        if proxy_pids:
-            _kill_pids(proxy_pids, name)
+        if _should_kill_proxy_process(state if state_matches else None, name):
+            if proxy_pids:
+                _kill_pids(proxy_pids, name)
+            else:
+                click.secho(
+                    f"{name} is not listening on 127.0.0.1:{port} "
+                    "(or port is held by an unrelated process — left untouched)",
+                    fg="yellow",
+                )
+        elif proxy_pids:
+            click.secho(
+                f"Leaving {name} pid={proxy_pids[0]} running "
+                "(started outside mytoolkit; stop only tears down socat/git)",
+                fg="cyan",
+            )
         else:
             click.secho(
                 f"{name} is not listening on 127.0.0.1:{port} "
@@ -930,6 +982,7 @@ def proxy_run(name: str, command: tuple[str, ...]) -> None:
                         (_pids_listening_on("127.0.0.1", port) or [None])[0]
                     ),
                     "forward_pids": [p.pid for p in forward_procs if p.pid],
+                    "adopted": proxy_proc is None,
                     "set_git": True,
                     "old_http": old_http,
                     "old_https": old_https,
diff --git a/tests/test_git_proxy.py b/tests/test_git_proxy.py
index 1a22f24..b3eff65 100644
--- a/tests/test_git_proxy.py
+++ b/tests/test_git_proxy.py
@@ -85,3 +85,31 @@ def test_restore_stale_git_proxy_noop_when_alive(monkeypatch):
     )
     assert _restore_stale_git_proxy() is False
     assert restored == {}
+
+
+def test_parallels_host_ips_includes_lan(monkeypatch):
+    from mytoolkit.commands.git import _parallels_host_ips
+
+    monkeypatch.setattr("mytoolkit.commands.git.sys.platform", "darwin")
+    monkeypatch.delenv("XIAOHE_CI_PARALLELS_HOST_IP", raising=False)
+    monkeypatch.setattr(
+        "mytoolkit.commands.git.subprocess.check_output",
+        lambda *a, **k: "inet 10.211.55.2 netmask\n",
+    )
+    monkeypatch.setattr("mytoolkit.commands.git._primary_lan_ip", lambda: "192.168.1.168")
+    assert _parallels_host_ips() == ["10.211.55.2", "192.168.1.168"]
+
+
+def test_should_kill_proxy_only_if_we_spawned():
+    from mytoolkit.commands.git import _should_kill_proxy_process
+
+    assert _should_kill_proxy_process(None, "fastgithub") is False
+    assert _should_kill_proxy_process({"name": "other"}, "fastgithub") is False
+    assert _should_kill_proxy_process(
+        {"name": "fastgithub", "adopted": True}, "fastgithub"
+    ) is False
+    assert _should_kill_proxy_process(
+        {"name": "fastgithub", "adopted": False}, "fastgithub"
+    ) is True
+    # Old state files without adopted: keep previous stop-kills-daemon behavior
+    assert _should_kill_proxy_process({"name": "fastgithub"}, "fastgithub") is True