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Semyon Bayandin's questions

Martin Hope
Semyon Bayandin
Asked: 2023-11-13 15:50:35 +0800 CST
  • 5

我有一个正在使用“仅主机适配器”的虚拟机。我禁用了 VirtualBox 的内置 DHCP 服务器。我已经安装isc-dhcp-server在我的虚拟机管理程序上。然后我添加了子网

subnet 10.10.54.0 netmask 255.255.255.0 {
  range 10.10.54.2 10.10.54.254;
  option routers 10.10.54.1;
  option domain-name-servers 8.8.8.8, 8.8.4.4;
  default-lease-time 600;
  max-lease-time 7200;
}

并为虚拟机添加了固定地址。

host 10-10-54-11 {
  hardware ethernet 08:00:27:de:7e:cc;
  fixed-address 10.10.54.11;
}

我的虚拟机有 MAC 地址08:00:27:de:7e:cc。我正在尝试通过以下命令从我的虚拟机发送 DHCP 请求：nmap --script broadcast-dhcp-discover。但是，当 DHCPd 收到为 VM 提供 IP 地址的请求时，DHCPd 显示完全不同的 MAC 地址，并且不发送固定地址

root@hypervisor:/etc/dhcp# systemctl status isc-dhcp-server
● isc-dhcp-server.service - ISC DHCP IPv4 server
   Loaded: loaded (/lib/systemd/system/isc-dhcp-server.service; enabled; vendor preset: enabled)
   Active: active (running) since Mon 2023-11-13 12:28:09 +05; 9min ago
     Docs: man:dhcpd(8)
 Main PID: 12274 (dhcpd)
    Tasks: 1 (limit: 4915)
   CGroup: /system.slice/isc-dhcp-server.service
           └─12274 dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcpd.pid -cf /etc/dhcp/dhcpd.conf

Nov 13 12:28:09 hypervisor dhcpd[12274]:    you want, please write a subnet declaration
Nov 13 12:28:09 hypervisor dhcpd[12274]:    in your dhcpd.conf file for the network segment
Nov 13 12:28:09 hypervisor dhcpd[12274]:    to which interface eth0 is attached. **
Nov 13 12:28:09 hypervisor dhcpd[12274]: 
Nov 13 12:28:09 hypervisor dhcpd[12274]: Sending on   Socket/fallback/fallback-net
Nov 13 12:28:09 hypervisor dhcpd[12274]: Server starting service.
Nov 13 12:28:14 hypervisor dhcpd[12274]: DHCPDISCOVER from de:ad:c0:de:ca:fe via vboxnet4
Nov 13 12:28:15 hypervisor dhcpd[12274]: DHCPOFFER on 10.10.54.3 to de:ad:c0:de:ca:fe via vboxnet4
Nov 13 12:32:39 hypervisor dhcpd[12274]: DHCPDISCOVER from de:ad:c0:de:ca:fe via vboxnet4
Nov 13 12:32:40 hypervisor dhcpd[12274]: DHCPOFFER on 10.10.54.3 to de:ad:c0:de:ca:fe via vboxnet4

这是一个错误吗？如何解决这个问题？

virtualbox
Martin Hope
Semyon Bayandin
Asked: 2023-10-04 18:41:39 +0800 CST
  • 5

有什么方法可以让使用 VirtualBox 的“Host-Only Adapter”的虚拟机仅声明特定的 IP 地址吗？我尝试使用这个：

VBoxManage dhcpserver modify --network HostInterfaceNetworking-vboxnet0 --mac-address="080027DE7ECC" --fixed-address="192.168.56.100"

它只声明 MAC 地址的默认 IP 地址，但 VM 仍然可以使用任何 IP 地址

networking