networking network_error ai_generated partial

ARP：在eth0上未收到192.168.1.50的ARP回复

ARP: no ARP reply received for 192.168.1.50 on eth0

ID: networking/arp-request-no-reply

其他格式: JSON · Markdown 中文 · English
80%修复率
84%置信度
1证据数
2023-09-05首次发现

版本兼容性

版本状态引入弃用备注
Linux kernel 6.1 active — — —
Windows 11 22H2 active — — —
macOS Ventura 13.4 active — — —

根因分析

主机发送了针对目标IP地址的ARP请求但未收到回复，表明目标不可达、已关机或位于不同的VLAN/子网中。

English

The host sent an ARP request for a target IP address but received no reply, indicating the target is unreachable, powered off, or on a different VLAN/subnet.

generic

官方文档

https://www.kernel.org/doc/html/latest/networking/arp.html

解决方案

  1. Verify target reachability: ping -c 3 192.168.1.50
  2. Check ARP table and manually add entry if needed: arp -s 192.168.1.50 00:11:22:33:44:55

无效尝试

常见但无效的做法:

  1. 85% 失败

    Flushing the ARP cache (arp -d 192.168.1.50) without addressing the underlying connectivity issue only temporarily removes the entry.

  2. 90% 失败

    Assuming the target is down and rebooting the local machine wastes time if the issue is a VLAN mismatch.