该如何理解KVM请教关于KVM-net的一些问题该如何理解

wheel

Network options:
-net nic[,vlan=n][,macaddr=addr][,model=type]
                create a new Network Interface Card and connect it to VLAN 'n'
-net user[,vlan=n][,hostname=host]
                connect the user mode network stack to VLAN 'n' and send
                hostname 'host' to DHCP clients
-net tap[,vlan=n][,fd=h][,ifname=name][,script=file]
                connect the host TAP network interface to VLAN 'n' and use
                the network script 'file' (default=/etc/qemu-ifup);
                use 'script=no' to disable script execution;
                use 'fd=h' to connect to an already opened TAP interface
-net socket[,vlan=n][,fd=h][,listen=[host]:port][,connect=host:port]
                connect the vlan 'n' to another VLAN using a socket connection
-net socket[,vlan=n][,fd=h][,mcast=maddr:port]
                connect the vlan 'n' to multicast maddr and port
-net none       use it alone to have zero network devices; if no -net option
                is provided, the default is '-net nic -net user'

roamingo

这是qemu提供的不同网卡连接方式（kvm/kqemu)用的都是qemu前台。英文例子参见：
http://www.gnome.org/~markmc/qemu-networking.html