1.现状：
VMWare版的IPS5.0，只有三块网卡，第一块网卡为command口，其余两个为sensor口，无法测试interface pair与杂合模式是否能同时使用，因为至少需要3个sensor口；两个sensor口到时可以测试一个接口采用VLAN pair，另外一个接口采用杂合模式。
2.添加一块sensor网卡的步骤：
A.VMWare中虚拟机添加一块网卡，与本地一块loopbak网卡桥接
B.关闭IPS虚拟机，修改vmx文件：
添加一行：ethernet3.virtualDev = "e1000"
C.再次打开虚拟机，以service帐号登录，并且su - root
root帐号密码和service的帐号密码一致
D.修改/usr/cids/idsRoot/etc/interface.conf文件：
①slot的pci-device分别为17和20，跨度为4，网卡的总数量
[models/IDS-4215/slots/1]
# lower slot
pci-bus=1
pci-device=17
[models/IDS-4215/slots/2
# upper slot
pci-bus=2
pci-device=20
②网卡的pci-device从17依次到20
[models/IDS-4215/interfaces/1]
# built-in 10/100 TX mgmt interface, Intel 82559ER
# was eth1 (int1) in 4.x
# rightmost connector on front panel
# labeled "Ethernet 1" on panel
name-template=Management0/0
#pci-bus=0
pci-device=17
pci-function=0
vendor-id=0x8086
device-id=0x100f
type=ge
mgmt-capable=yes
default-admin-state=enable
on-backplane=yes
[models/IDS-4215/interfaces/2]
# built-in 10/100 TX sensing interface, Intel 82559ER
# was eth0 (int0) in 4.x
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# leftmost connector labeled "Ethernet 0"
name-template=GigabitEthernet0/1
#pci-bus=0
pci-device=18
pci-function=0
vendor-id=0x8086
device-id=0x100f
type=ge
sensing-capable=yes
tcp-reset-capable=yes
default-admin-state=enabled
[models/IDS-4215/interfaces/3]
name-template=GigabitEthernet0/2
#pci-bus=0
pci-device=19
pci-function=0
vendor-id=0x8086
device-id=0x100f
type=ge
sensing-capable=yes
tcp-reset-capable=yes
default-admin-state=enabled
[models/IDS-4215/interfaces/4]
# rightmost interface on optional 1 x 4-FE card:
# on secondary bus of pci-pci bridge on the interface card
# was eth5 (int5) in 4.x
#pci-bus=0
name-template=GigabitEthernet0/3
pci-device=20
pci-function=0
vendor-id=0x8086
device-id=0x100f
type=ge
sensing-capable=yes
tcp-reset-capable=yes
default-admin-state=enabled