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子网/掩码组合不正确

tag-icon • tag-icon linux networking dhcp subnet
子网/掩码组合不正确

对于网络接口，我已经为 DHCP 定义了一个地址范围。

3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
link/ether 08:00:27:5a:3e:be brd ff:ff:ff:ff:ff:ff
inet 10.0.2.1/24 brd 10.0.2.255 scope global eth1

dhcpd.conf 文件包含

subnet 10.0.2.1 netmask 255.255.255.240 {
  range 10.0.2.2 10.0.2.10;
  allow booting;
  allow bootp;
  class "pxeclients" {
    match if substring(option vendor-class-identifier, 0, 9) = "PXEClient";
    next-server 10.0.2.3;
    filename "pxelinux.0";
 }
}

但是，当我启动 dhcpd 时，出现此错误

/etc/dhcp/dhcpd.conf line 1: subnet 10.0.2.1 netmask 255.255.255.240: bad subnet number/mask combination.
subnet 10.0.2.1 netmask 255.255.255.240 
                                    ^
Configuration file errors encountered -- exiting

问题是什么？

答案1

您给出的是子网内的 IP 地址，而不是子网本身的地址。将其替换subnet 10.0.2.1为subnet 10.0.2.0，它应该可以正常工作。

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