From e98543267a672989da4eccf49420d6e432a46624 Mon Sep 17 00:00:00 2001
From: liziyu <56102866+liziyu179@users.noreply.github.com>
Date: Tue, 18 Nov 2025 16:30:51 +0800
Subject: [PATCH] [bugfix] fix proxy hen host ip using domain name (#4243)

### What this PR does / why we need it?
fix proxy when host ip using domain name

- vLLM version: v0.11.0
- vLLM main:
https://github.com/vllm-project/vllm/commit/2918c1b49c88c29783c86f78d2c4221cb9622379

---------

Signed-off-by: liziyu <liziyu16@huawei.com>
---
 .../load_balance_proxy_layerwise_server_example.py | 14 +++++++-------
 .../load_balance_proxy_server_example.py           | 14 +++++++-------
 .../distributed/mooncake/transfer_engine.py        |  2 +-
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/examples/disaggregated_prefill_v1/load_balance_proxy_layerwise_server_example.py b/examples/disaggregated_prefill_v1/load_balance_proxy_layerwise_server_example.py
index 1bf0859b..53353cea 100644
--- a/examples/disaggregated_prefill_v1/load_balance_proxy_layerwise_server_example.py
+++ b/examples/disaggregated_prefill_v1/load_balance_proxy_layerwise_server_example.py
@@ -116,13 +116,13 @@ class ServerState:
     def __init__(self, host, port):
         self.host = host
         self.port = port
-        ip = ipaddress.ip_address(self.host)
-        if isinstance(ip, ipaddress.IPv4Address):
-            self.url = f'http://{host}:{port}/v1'
-        elif isinstance(ip, ipaddress.IPv6Address):
-            self.url = f'http://[{host}]:{port}/v1'
-        else:
-            raise RuntimeError(f"Invild host IP address {ip}")
+        self.url = f'http://{host}:{port}/v1'
+        try:
+            ip = ipaddress.ip_address(self.host)
+            if isinstance(ip, ipaddress.IPv6Address):
+                self.url = f'http://[{host}]:{port}/v1'
+        except Exception:
+            pass
         self.client = httpx.AsyncClient(timeout=None,
                                         base_url=self.url,
                                         limits=httpx.Limits(
diff --git a/examples/disaggregated_prefill_v1/load_balance_proxy_server_example.py b/examples/disaggregated_prefill_v1/load_balance_proxy_server_example.py
index 0848ae02..c02a6fa1 100644
--- a/examples/disaggregated_prefill_v1/load_balance_proxy_server_example.py
+++ b/examples/disaggregated_prefill_v1/load_balance_proxy_server_example.py
@@ -118,13 +118,13 @@ class ServerState:
     def __init__(self, host, port):
         self.host = host
         self.port = port
-        ip = ipaddress.ip_address(self.host)
-        if isinstance(ip, ipaddress.IPv4Address):
-            self.url = f'http://{host}:{port}/v1'
-        elif isinstance(ip, ipaddress.IPv6Address):
-            self.url = f'http://[{host}]:{port}/v1'
-        else:
-            raise RuntimeError(f"Invild host IP address {ip}")
+        self.url = f'http://{host}:{port}/v1'
+        try:
+            ip = ipaddress.ip_address(self.host)
+            if isinstance(ip, ipaddress.IPv6Address):
+                self.url = f'http://[{host}]:{port}/v1'
+        except Exception:
+            pass
         self.client = httpx.AsyncClient(timeout=None,
                                         base_url=self.url,
                                         limits=httpx.Limits(
diff --git a/vllm_ascend/distributed/mooncake/transfer_engine.py b/vllm_ascend/distributed/mooncake/transfer_engine.py
index 69900308..d4e172b7 100644
--- a/vllm_ascend/distributed/mooncake/transfer_engine.py
+++ b/vllm_ascend/distributed/mooncake/transfer_engine.py
@@ -13,7 +13,7 @@ def get_global_te(hostname: str, device_name: Optional[str]):
         ip = ipaddress.ip_address(hostname)
         if isinstance(ip, ipaddress.IPv6Address):
             raise RuntimeError(
-                "The backend if mooncake's Ascend Direct Xfer Library currcenly dose not support IPv6."
+                "The backend of mooncake's Ascend Direct Xfer Library currently does not support IPv6."
             )
     except ValueError:
         pass