[Rocky] KVM 네트워크 IP 수동 설정 방법

virt-install 로 KVM 을 생성한 후에 네트워크 아이피를 재설정 하는 방법입니다.

# virsh domiflist KVM명
MAC Address 값을 알아냅니다.
그리고
# virsh net-dumpxml default
DHCP ip 범위를 알아냅니다.

[root@rocky libvirt]# virsh domiflist Rocky9
 Interface   Type      Source    Model    MAC
-------------------------------------------------------------
 vnet0       network   default   virtio   52:54:00:02:5d:c7

[root@rocky libvirt]# virsh net-dumpxml default
<network connections='1'>
  <name>default</name>
  <uuid>d8166dc5-c406-4aac-8094-446c6500c3bb</uuid>
  <forward mode='nat'>
    <nat>
      <port start='1024' end='65535'/>
    </nat>
  </forward>
  <bridge name='virbr0' stp='on' delay='0'/>
  <mac address='52:54:00:21:d4:b1'/>
  <ip address='192.168.122.1' netmask='255.255.255.0'>
    <dhcp>
      <range start='192.168.122.2' end='192.168.122.254'/>
    </dhcp>
  </ip>
</network>

이제 수동으로 ip를 설정합니다.

[root@rocky libvirt]# virsh net-update default add ip-dhcp-host '<host mac="52:54:00:02:5d:c7" ip="192.168.122.100"/>' --live --config
Updated network default persistent config and live state

[root@rocky libvirt]# virsh net-dumpxml default
<network>
  <name>default</name>
  <uuid>d8166dc5-c406-4aac-8094-446c6500c3bb</uuid>
  <forward mode='nat'>
    <nat>
      <port start='1024' end='65535'/>
    </nat>
  </forward>
  <bridge name='virbr0' stp='on' delay='0'/>
  <mac address='52:54:00:21:d4:b1'/>
  <ip address='192.168.122.1' netmask='255.255.255.0'>
    <dhcp>
      <range start='192.168.122.2' end='192.168.122.254'/>
      <host mac='52:54:00:02:5d:c7' ip='192.168.122.100'/>
    </dhcp>
  </ip>
</network>

[root@rocky libvirt]# virsh list --all
 Id   Name     State
------------------------
 1    Rocky9   running

[root@rocky libvirt]# virsh reboot Rocky9
Domain 'Rocky9' is being rebooted

이제 접속해서 변경된 아이피를 확인합니다.