DHCP 类别存在问题

DHCP 类别存在问题

我在 DHCP 类别与 MAC 地址匹配方面遇到了问题。

我们有很多同一类型的机器,我想将 IPMI 卡放在同一个池中。

我尝试过以下方法;

class "IPMI" {
match if (substring(hardware, 0, 3) = 0c:c4:7a);
}
subnet 10.0.0.0 netmask 255.255.0.0 {
option routers 10.0.0.1;

pool {
range 10.0.1.0 10.0.1.255;
allow members of "IPMI";
}
}

由于某种原因,没有任何信息得到匹配,机器也没有接收预订。

Oct 14 11:32:52 gotti dhcpd: DHCPDISCOVER from 0c:c4:7a:1c:d4:37 via em1: network LAN: no free leases

有任何想法吗?

答案1

dhcp-eval(5)

   hardware

      The  hardware  operator returns a data string whose first element is
      the type of network interface indicated in packet being  considered,
      and  whose subsequent elements are client’s link-layer address.   If
      there is no packet, or if the RFC2131 hlen field  is  invalid,  then
      the  result  is  null.   Hardware types include ethernet (1), token-

因此您可能需要将网络类型添加到搜索中:

match if (substring(hardware, 0, 3) = 01:0c:c4:7a);

或者盲目假设以太网并且从第一个位置以外的地方开始搜索:

match if (substring(hardware, 1, 3) = 0c:c4:7a);

在测试中,“网络类型”作为主要选项1:没有01:成功,而以下内容成功了:

class "FOO" {
  match if substring(hardware, 1, 3) = 08:00:27;
}

subnet 192.168.33.0 netmask 255.255.255.0 {
  option routers 192.168.33.1;

  pool {
    range 192.168.33.110 192.168.33.120;
    allow members of "FOO";
  }
}

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