zhlking opened a new issue #9617:
URL: https://github.com/apache/dubbo/issues/9617
从dubbo 2.7.14在docker swarm中注册到nacos中IP地址出现问题
### Environment
* docker swarm
* Dubbo version: 2.7.14
* Java version: 1.8
* #8679 这个更新后开始出现问题的
docker
swarm环境下从2.7.14版本开始获取的是本地虚拟网桥段的地址，获取的IP地址只能够在宿主机上访问，跨主机是不能访问的。2.7.14版本之前能获取到容器swarm网络的IP。
暂时解决办法，重写了org.apache.dubbo.common.utils.NetUtils类。
修改dubbo/dubbo-common/src/main/java/org/apache/dubbo/common/utils/NetUtils.java
的428-444行，如下：
```
if (result == null) { // If not found, try to get the first one
for (NetworkInterface networkInterface : validNetworkInterfaces)
{
Enumeration<InetAddress> addresses =
networkInterface.getInetAddresses();
while (addresses.hasMoreElements()) {
Optional<InetAddress> addressOp =
toValidAddress(addresses.nextElement());
if (addressOp.isPresent()) {
try {
if (addressOp.get().isReachable(100)) {
return networkInterface;
}
} catch (IOException e) {
// ignore
}
}
}
}
}
```
改为：
```
if (result == null) { // If not found, try to get the first one
for (NetworkInterface networkInterface : validNetworkInterfaces)
{
Enumeration<InetAddress> addresses =
networkInterface.getInetAddresses();
while (addresses.hasMoreElements()) {
Optional<InetAddress> addressOp =
toValidAddress(addresses.nextElement());
if (addressOp.isPresent()) {
try {
if (addressOp.get().isReachable(100)) {
result = networkInterface;
break;
}
} catch (IOException e) {
// ignore
}
}
}
}
}
```
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