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  • KVM之十:虚拟机在线添加网卡

    1、查看原有网卡信息

    #virsh domiflist snale
    Interface  Type       Source     Model       MAC
    -------------------------------------------------------
    vnet0      bridge     br0        virtio      52:54:00:8c:b8:60

    2、临时添加新网卡

    #virsh attach-interface snale --type bridge --source br0 
    成功附加接口

    永久添加网卡命令
    #virsh attach-interface snale --type bridge --source br0  --config

    3、查看

    #virsh domiflist snale
    Interface  Type       Source     Model       MAC
    -------------------------------------------------------
    vnet0      bridge     br0        virtio      52:54:00:8c:b8:60
    vnet1      bridge     br0        -           52:54:00:14:86:cf
    
    #ip a
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
        inet 127.0.0.1/8 scope host lo
        inet6 ::1/128 scope host 
           valid_lft forever preferred_lft forever
    2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
        link/ether 52:54:00:8c:b8:60 brd ff:ff:ff:ff:ff:ff
        inet 192.168.0.23/24 brd 192.168.0.255 scope global eth0
        inet6 fe80::5054:ff:fe8c:b860/64 scope link 
           valid_lft forever preferred_lft forever
    3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
        link/ether 52:54:00:14:86:cf brd ff:ff:ff:ff:ff:ff

    4、命令行增加的网卡只保存在内存中,重启就失效,所以需要保存到配置文件中

    #virsh dumpxml snale >/etc/libvirt/qemu/snale.xml 
    #virsh define /etc/libvirt/qemu/snale.xml

    删除网卡命令

    #virsh detach-interface snale  --type bridge --mac  52:54:00:14:86:cf
    成功分离接口

    再重新保存配置

    
    
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  • 原文地址:https://www.cnblogs.com/chenjiahe/p/5950038.html
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