From c1a3569da707fe316db29c3e8f8dc1f9047584e0 Mon Sep 17 00:00:00 2001
From: zhangyh <717572325@qq.com>
Date: Wed, 15 Oct 2025 16:29:22 +0800
Subject: [PATCH 1/3] Include IPv4 link-local addresses in the regular field

---
 netwatch/src/ip.rs | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/netwatch/src/ip.rs b/netwatch/src/ip.rs
index 2580aae..0d97078 100644
--- a/netwatch/src/ip.rs
+++ b/netwatch/src/ip.rs
@@ -83,15 +83,8 @@ impl LocalAddresses {
             }
         }
 
-        if regular4.is_empty() && regular6.is_empty() {
-            // if we have no usable IP addresses then be willing to accept
-            // addresses we otherwise wouldn't, like:
-            //   + 169.254.x.x (AWS Lambda uses NAT with these)
-            //   + IPv6 ULA (Google Cloud Run uses these with address translation)
-            regular4 = linklocal4;
-            regular6 = ula6;
-        }
         let mut regular = regular4;
+        regular.extend(linklocal4);
         regular.extend(regular6);
 
         regular.sort();

From 09d215aad26378c855498a32198e97be4c7a0610 Mon Sep 17 00:00:00 2001
From: zhangyh <717572325@qq.com>
Date: Thu, 16 Oct 2025 09:49:46 +0800
Subject: [PATCH 2/3] use chain to combine extend operations

---
 netwatch/src/ip.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/netwatch/src/ip.rs b/netwatch/src/ip.rs
index 0d97078..a892e2c 100644
--- a/netwatch/src/ip.rs
+++ b/netwatch/src/ip.rs
@@ -84,8 +84,7 @@ impl LocalAddresses {
         }
 
         let mut regular = regular4;
-        regular.extend(linklocal4);
-        regular.extend(regular6);
+        regular.extend(linklocal4.into_iter().chain(regular6));
 
         regular.sort();
         loopback.sort();

From 5f367fe81fea940f3b18ceb08ec63a1f2dc122fc Mon Sep 17 00:00:00 2001
From: zhangyh <717572325@qq.com>
Date: Thu, 16 Oct 2025 10:16:35 +0800
Subject: [PATCH 3/3] update comments

---
 netwatch/src/ip.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/netwatch/src/ip.rs b/netwatch/src/ip.rs
index a892e2c..cd2e6ca 100644
--- a/netwatch/src/ip.rs
+++ b/netwatch/src/ip.rs
@@ -29,8 +29,8 @@ impl Default for LocalAddresses {
 #[cfg(not(wasm_browser))]
 impl LocalAddresses {
     /// Returns the machine's IP addresses.
-    /// If there are no regular addresses it will return any IPv4 linklocal or IPv6 unique local
-    /// addresses because we know of environments where these are used with NAT to provide connectivity.
+    /// Regular includes all non-loopback IPv4 (including link-local).
+    /// IPv6 link-local and unique local are excluded from regular.
     pub fn new() -> Self {
         let ifaces = netdev::interface::get_interfaces();
         Self::from_raw_interfaces(&ifaces)