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[root@scientific ~]# yum install -y tunctl
DHCP
brctl addbr br0 ifconfig eth0 0.0.0.0 brctl addif br0 eth0 dhclient br0 tunctl -b -u root ifconfig tap0 up brctl addif br0 tap0
STATIC IP Address
brctl addbr br0 ifconfig eth0 0.0.0.0 brctl addif br0 eth0 ifconfig br0 up tunctl -b -u root ifconfig tap0 up brctl addif br0 tap0 ifconfig br0 192.168.1.120 netmask 255.255.255.0 up ip route add default via 192.168.3.1 dev br0
[root@scientific ~]# ip route 192.168.3.0/24 dev br0 proto kernel scope link src 192.168.3.43 192.168.3.0/24 dev tap0 proto kernel scope link src 192.168.3.21 default via 192.168.3.1 dev br0 [root@scientific ~]# brctl show bridge name bridge id STP enabled interfaces br0 8000.4ea7e4cf4633 no eth0 tap0 br06499 8000.000000000000 no
啟動KVM
指定網絡參數 -net nic -net tap,ifname=tap0,script=no/usr/libexec/qemu-kvm -hda disk.img -m 8000 -net nic -net tap,ifname=tap0,script=no -vnc :1 /usr/libexec/qemu-kvm -hda disk.img -m 8000 -net nic -net tap,ifname=tap0,script=no -nographic -daemonize