编辑/etc/network/interfaces

nano /etc/network/interfaces 

添加vmbr2

auto vmbr2
iface vmbr2 inet static
    address 192.168.0.254
    netmask 255.255.255.0
    bridge_ports none
    bridge_stp off
    bridge_fd 0
    post-up echo 1 > /proc/sys/net/ipv4/ip_forward
    post-up iptables -t nat -A POSTROUTING -s '192.168.0.0/24' -o vmbr0 -j MASQUERADE
    post-down iptables -t nat -D POSTROUTING -s '192.168.0.0/24' -o vmbr0 -j MASQUERADE

开启新网卡vmbr2

ifup vmbr2

创建新虚拟机，网卡选桥接，选择新的vmbr2
手动设置类似以下的IP

ipaddress 192.168.0.1
netmask 255.255.255.0
broadcast 192.168.0.255
gateway  192.168.0.254 (ip vmbr2 on the host)

dns信息可以是8.8.8.8，8.8.4.4
端口转发方法1：

iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 1022 -j DNAT --to 192.168.0.1:22

用这种的话可以直接写在母鸡/etc/network/interfaces里，这样完整的内容就是

auto vmbr2
iface vmbr2 inet static
    address 192.168.0.254
    netmask 255.255.255.0
    bridge_ports none
    bridge_stp off
    bridge_fd 0
    post-up echo 1 > /proc/sys/net/ipv4/ip_forward
    post-up iptables -t nat -A POSTROUTING -s '192.168.0.0/24' -o vmbr0 -j MASQUERADE
    post-down iptables -t nat -D POSTROUTING -s '192.168.0.0/24' -o vmbr0 -j MASQUERADE
    post-up iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 1022 -j DNAT --to 192.168.0.1:22
    post-down iptables -t nat -D PREROUTING -i vmbr0 -p tcp --dport 1022 -j DNAT --to 192.168.0.1:22

端口转发方法2：
在母鸡上执行

qm set 100 -args "--redir tcp:1022::22"



以上100是虚拟机id号，意思是将id为100的虚拟机的22端口转发到母鸡的1022端口上

 除此之外，还可以直接编辑虚拟机配置文件/etc/pve/qemu-server/id号.conf

 添加一行args: –redir tcp:11389::3389,类似如下:
args: --redir tcp:11389::3389
balloon: 4096
bootdisk: virtio0
cores: 8
cpu: host
ide2: local:iso/cn_windows_server_2008_r2_standard_enterprise_datacenter_and_web_with_sp1_x64_dvd_incl_virtio-140506-homemade-by-Jetso.iso,media=cdrom
memory: 8192
name: WIN2K8
net0: virtio=00:xx:xx:xx:xx:xx,bridge=vmbr2
numa: 0
ostype: win7
smbios1: uuid=aebd16b6-2678-454e-9efd-xxxxxxxxxxx
sockets: 1
virtio0: local:100/vm-100-disk-1.qcow2,size=40G

参见http://help.ovh.co.uk/Proxmox
 
第二种方法测试不行！！！