Centos

相同的 DHCP 租約,過多的 dhcp 流量

  • April 1, 2016

全新安裝 CentOS 7,移除 dnsmasq,安裝 dhcp 伺服器、iptables、webmin、apache。

這是學校,許多交換機和 wifi(橋接模式)AP 連接到此路由器

一個網路 - 10.0.0.0

DHCP 池 - 10.5.0.1 - 10.5.244.244

有靜態租約(大約 100 個)

我收到過多的消息,例如http://pastebin.com/gXGtr3Y8

Apr  1 08:03:30 int dhcpd: DHCPDISCOVER from a4:ee:57:e0:91:df via enp28s1
Apr  1 08:03:31 int dhcpd: DHCPOFFER on 10.5.20.90 to a4:ee:57:e0:91:df (EPSONE091DF) via enp28s1
Apr  1 08:03:32 int dhcpd: DHCPDISCOVER from a4:ee:57:e0:91:df (EPSONE091DF) via enp28s1
Apr  1 08:03:32 int dhcpd: DHCPOFFER on 10.5.20.90 to a4:ee:57:e0:91:df (EPSONE091DF) via enp28s1
Apr  1 08:03:32 int dhcpd: DHCPREQUEST for 10.5.20.90 (10.0.0.1) from a4:ee:57:e0:91:df (EPSONE091DF) via enp28s1
Apr  1 08:03:32 int dhcpd: DHCPACK on 10.5.20.90 to a4:ee:57:e0:91:df (EPSONE091DF) via enp28s1
Apr  1 08:03:34 int dhcpd: DHCPREQUEST for 10.5.20.90 (10.0.0.1) from a4:ee:57:e0:91:df (EPSONE091DF) via enp28s1

這導致

   10.5.20.90  a4:ee:57:e0:91:df   EPSONE091DF 2016/04/01 05:03:32 2017/04/01 10:52:18
   10.5.20.90  a4:ee:57:e0:91:df   EPSONE091DF 2016/04/01 05:03:34 2017/04/01 10:52:20
   10.5.20.90  a4:ee:57:e0:91:df   EPSONE091DF 2016/04/01 05:03:36 2017/04/01 10:52:22
   10.5.20.90  a4:ee:57:e0:91:df   EPSONE091DF 2016/04/01 05:03:39 2017/04/01 10:52:25
   10.5.20.90  a4:ee:57:e0:91:df   EPSONE091DF 2016/04/01 05:03:40 2017/04/01 10:52:26

此外,大多數 Android 設備都難以連接到 wifi。http://pastebin.com/UMsg7jS7

你能指導我正確的方向嗎?如果需要,請詢問更多資訊:)

似乎有一些 WiFi AP 具有舊的靜態 IP 地址,因此在將它們設為 DHCP 後,問題就消失了。

引用自:https://serverfault.com/questions/767488