KVM修改網絡模式為Bridge後,原有虛擬機該如何修改配置
場景說明:KVM虛擬機之前沒有設置為Bridge模式,然後就直接創建虛擬機了(當時網卡模式選擇的為default),後來調整KVM網卡模式為Bridge後,虛擬機沒法正常聯網。
[[email protected] ~]# virsh shudown CentOS-7.3-X86_64 [[email protected] ~]# virsh edit CentOS-7.3-X86_64 將xml配置文件中的: <interface type=‘network‘> <mac address=‘52:54:00:e4:7c:77‘/> <source network=‘default‘/> <model type=‘virtio‘/> <address type=‘pci‘ domain=‘0x0000‘ bus=‘0x00‘ slot=‘0x03‘ function=‘0x0‘/> </interface> 修改為: <interface type=‘bridge‘> <mac address=‘52:54:00:e4:7c:77‘/> <source bridge=‘br0‘/> <model type=‘virtio‘/> <address type=‘pci‘ domain=‘0x0000‘ bus=‘0x00‘ slot=‘0x03‘ function=‘0x0‘/> </interface>
由於kvm虛擬機使用的是bridge模式,可以把virbr0接口(即NAT方式裏面的default虛擬網絡)刪除
[[email protected] ~]# ip add list 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP qlen 1000 link/ether 00:0c:29:14:2b:9a brd ff:ff:ff:ff:ff:ff 4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN qlen 1000 link/ether 52:54:00:9f:ad:48 brd ff:ff:ff:ff:ff:ff inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0 valid_lft forever preferred_lft forever 5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN qlen 1000 link/ether 52:54:00:9f:ad:48 brd ff:ff:ff:ff:ff:ff 7: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000 link/ether 00:0c:29:14:2b:9a brd ff:ff:ff:ff:ff:ff inet 10.10.10.160/24 brd 10.10.10.255 scope global br0 valid_lft forever preferred_lft forever inet6 fe80::20c:29ff:fe14:2b9a/64 scope link valid_lft forever preferred_lft forever 8: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UNKNOWN qlen 1000 link/ether fe:54:00:71:7b:aa brd ff:ff:ff:ff:ff:ff inet6 fe80::fc54:ff:fe71:7baa/64 scope link valid_lft forever preferred_lft forever 10: vnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UNKNOWN qlen 1000 link/ether fe:54:00:e4:7c:77 brd ff:ff:ff:ff:ff:ff inet6 fe80::fc54:ff:fee4:7c77/64 scope link valid_lft forever preferred_lft forever [[email protected]