6.3. 为网络引导配置 DHCPv6 服务器

流程

1. 安装 DHCP 服务器：

   yum install dhcp-server

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2. 设置 DHCPv6 服务器。在 /etc/dhcp/dhcpd6.conf 文件中输入以下配置。替换地址以匹配您的网卡。

   option dhcp6.bootfile-url code 59 = string;
   option dhcp6.vendor-class code 16 = {integer 32, integer 16, string};
   
   subnet6 fd33:eb1b:9b36::/64 {
           range6 fd33:eb1b:9b36::64 fd33:eb1b:9b36::c8;
   
           class "PXEClient" {
                   match substring (option dhcp6.vendor-class, 6, 9);
           }
   
           subclass "PXEClient" "PXEClient" {
                   option dhcp6.bootfile-url "tftp://[fd33:eb1b:9b36::2]/redhat/EFI/BOOT/BOOTX64.EFI";
           }
   
           class "HTTPClient" {
                   match substring (option dhcp6.vendor-class, 6, 10);
           }
   
           subclass "HTTPClient" "HTTPClient" {
                   option dhcp6.bootfile-url "http://[fd33:eb1b:9b36::2]/redhat/EFI/BOOT/BOOTX64.EFI";
                   option dhcp6.vendor-class 0 10 "HTTPClient";
           }
   }

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3. 启动 DHCPv6 服务：

   # systemctl enable --now dhcpd6

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4. 如果 DHCPv6 数据包被防火墙中的 RP 过滤器丢弃了，请检查其日志。如果日志包含 rpfilter_DROP 条目，请使用 /etc/firewalld/firewalld.conf 文件中的以下配置禁用过滤器：

   IPv6_rpfilter=no

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