networking resource_error ai_generated true

DHCP：池192.168.1.0/24中无可用租约，服务器10.0.0.1

DHCP: No free leases in pool 192.168.1.0/24, server 10.0.0.1

ID: networking/dhcp-server-exhausted-pool

其他格式: JSON · Markdown 中文 · English
90%修复率
88%置信度
1证据数
2023-11-05首次发现

版本兼容性

版本状态引入弃用备注
ISC DHCP 4.4 active — — —
Kea 2.4 active — — —
dnsmasq 2.89 active — — —
Windows Server 2022 DHCP active — — —

根因分析

DHCP服务器已分配了配置作用域中的所有可用IP地址，且没有租约过期或释放以容纳新客户端。

English

The DHCP server has assigned all available IP addresses in the configured scope, and no leases have expired or been released to accommodate new clients.

generic

官方文档

https://www.isc.org/dhcp/

解决方案

  1. Expand the DHCP pool by adding more IP addresses to the scope: in dhcpd.conf, change 'range 192.168.1.100 192.168.1.200;' to 'range 192.168.1.100 192.168.1.250;' and restart the server
  2. Manually release unused leases by clearing the DHCP lease file and restarting: rm /var/lib/dhcp/dhcpd.leases && systemctl restart isc-dhcp-server

无效尝试

常见但无效的做法:

  1. 95% 失败

    Restarting does not free existing leases; the pool remains exhausted.

  2. 80% 失败

    Existing leases retain their original lease time until renewal; the change only affects future leases.