iOS 休眠恢复一段时间内找不到默认接口

Operating system

iOS

System version

18.5

Installation type

sing-box for iOS Graphical Client

If you are using a graphical client, please provide the version of the client.

1.12.10

Version

v1.12.0-beta.19

Description

iOS在休眠模式唤醒后一段时间内找不到默认接口，TUN模块配置如下

   {
      "type": "tun",
      "address": ["172.18.0.1/30", "fdfe:dcba:9876::1/126"],
      "auto_route": true,
      "mtu": 9000,
      "strict_route": true,
      "platform": {
        "http_proxy": {
          "enabled": true,
          "server": "127.0.0.1",
          "server_port": 2334
        }
      }
    },
    {
      "type": "mixed",
      "tag": "mixed-in",
      "listen": "127.0.0.1",
      "listen_port": 2334
    }

Reproduction

TUN模式下有一定概率能复现的操作步骤

1. 开启iPhone的省电模式
2. 开启sing-box
3. 关闭屏幕隔半小时+
4. 唤醒手机立即访问网络

Logs

ERROR[0651] [3689522883 0ms] router: connection refused
ERROR[0651] [3612265270 0ms] router: connection refused
ERROR[0658] network: missing default interface
ERROR[0658] network: missing default interface
ERROR[0658] [1711747636 206ms] dns: exchange failed for 49-courier.push.apple.com. IN A: read tcp 192.168.1.75:56481 ->172.65.42.1:443: use of closed network connection
ERROR[0662] [2026406323 4.43s] outbound/urltest[URLTEST]: read tcp 192.168.1.75:56514 ->172.65.42.1:443: use of closed network connection
ERROR[0662] [1645729990 4.48s] connection:open connection to excess.duolingo.com:443 using outbound/urltest[URLTEST]: read tcp 192.168.1.75:56512->172.65.42.1:443:use of closed network connection

Supporter

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Integrity requirements

• I confirm that I have read the documentation, understand the meaning of all the configuration items I wrote, and did not pile up seemingly useful options or default values.
• I confirm that I have provided the server and client configuration files and process that can be reproduced locally, instead of a complicated client configuration file that has been stripped of sensitive data.
• I confirm that I have provided the simplest configuration that can be used to reproduce the error I reported, instead of depending on remote servers, TUN, graphical interface clients, or other closed-source software.
• I confirm that I have provided the complete configuration files and logs, rather than just providing parts I think are useful out of confidence in my own intelligence.

Start by reproducing the reported sequence on iOS 18.5 with sing-box for iOS 1.12.10 and the supplied TUN configuration: enable low power mode, leave the device asleep for over 30 minutes, then access the network. Investigate the network: missing default interface and router: connection refused logs; done means the default interface is available after wake and network access succeeds.