IC697CBL826

IC697CBL826

要在VxWorks中實現NAT，必須實現兩個基本操作：IP數據包的截獲與IP數據包的偽裝處理。

　　對于VxWorks協議棧來講，NAT的存在是透明的。所以，要實現NAT的功能，必須在VxWorks網絡協議棧處理數據包之前截獲數據。要實現這一點，VxWorks為我們提供了兩類鉤子函數，截獲以太幀的EtherHook和截獲IP數據包的IpFilterHook。

　　其中EtherHook又包括EtherInputHook和EtherOutputHook，分別用來截獲接收和發送的以太幀。用戶可以通過EtherInputHookAdd和EtherOutputHookAdd來分別進行安裝。

　　而IpFilterHook提供對IP數據包的截獲，它只對應一個鉤子函數，用IpFilterHookAdd來進行安裝。當收到一個IP數據包的時候，IpFilterHook會被自動調用，從而達到對IP數據包截獲的目的。

　　對比兩種接口，EtherInputHookAdd將調用MuxBind去添加一個MUX_PROTO_SNARF協議，這樣可以得到進入MUX接口層的所有數據包。而由IpFilterHookAdd安裝的IpFilterHook，不屬于MUX接口層，僅僅用來截獲IP數據包，而不會接收到非IP數據包。

　　鑒于以上的區別，我們使用IpFilterHookAdd函數安裝的IpFilterHook來截獲IP數據包比較合適，參見圖2。

IC697CBL826◆ 聯系人： 陳女士）
◆ 電話：0592-5709825
◆ 聯系手機：18030229053
◆ QQ: 2479261344
◆ 傳真：0592-5709828（備注“陳女生”收）
◆ E-mail： 2479261344@qq.com

IC697CBL826Siemens Simodrive 1FT6 Motor 1FT6084-8AC71-4SA3

Siemens Simodrive 1FT6 Motor 1FT6082-8AK71-4EK5

Siemens Simodrive 1FT6 Motor 1FT6102-8AF71-4EG0

Siemens Simodrive 1FK6 Motor 1FK6042-6AF71-1EA0

Siemens Simodrive 6SN1123-1AA00-0AA0. LT Module 15A New

SIEMENS SIMODRIVE 10 25KW U/E MODUL 6SN1145 1AA00 0AA0

SIEMENS 6SC6-111-2AA00 SIMODRIVE 

Siemens Simodrive 611 6SN1118-0DJ21-0AA0 6SN1 118 

Siemens Simodrive 6SN1123-1AA00-0AA0

Siemens Simodrive 6SN1115-0AA12-0AA0. CNC Cntrl Mod New

Siemens Simodrive 6SN1111-0AB00-0AA0 Surge Arrestor New

siemens simodrive 6sc 6506-4aa02-z d380-d430/60a drive

Siemens Simodrive 1FT6 Motor 1FT6034-4AK71-3EH1

Siemens Simodrive 1FT6 Motor 1FT6034-1AK71-3EH1

Siemens Simodrive C98043-A1210-L41 Board New

Siemens simodrive mlfb: 6sc 6110-7va01

Siemens Simodrive C98043-A1200-L23 Board New

Siemens Simodrive C98043-A1086-L11 Board New

Siemens Simodrive / Sinumerik E52930-A3210-C5-B1 Board.

Siemens Simodrive C98043-A1001-L5 Board New.

SIEMENS SIMODRIVE 6SC-6506-4AA02 DC SERVO DRIVE

Siemens Simodrive 6RB2000-0NF01 Control Board New

Siemens Simodrive C98043-A1086-L11 Board.

Siemens Simodrive 6RB2000-0NF01 Control Board.

Siemens Simodrive 6SN1123-1AB00-0AA1 6SN11231AB000AA1

Siemens Simodrive 6SN1112-1AC01-0AA0. UEB-Module New

Siemens Simodrive 611 6SN1114-0NA00-0AA0 6SN1 114 

Siemens Simodrive 611 6SN1114-0AA02-0AA0 6SN1 114 

Siemens Simodrive 611 6SN1114-0AA01-0AA0 6SN1 114 

SIEMENS SIMODRIVE 1P 6SN1123-1AA01-0FA1

Siemens Simodrive 611 6SN1118-0DJ21-0AA0 6SN1 118 

Siemens Simodrive HSA 611 6SN1115-0BA11-0AA1 6SN1 115 

Siemens Simodrive VSA 611 6SN1118-0AA11-0AA0 6SN1 118 

Siemens Simodrive 611 6SN1118-0DG21-0AA0 6SN1 118 

Siemens Simodrive 611 6SN1118-0DJ21-0AA1 6SN1 118 

Siemens Simodrive 611 6SN1118-0DM11-0AA1 6SN1 118 

Siemens Simodrive 611 6SN1118-0DM23-0AA0 6SN1 118 

Siemens Simodrive 611 6SN1118-0NJ01-0AA0 6SN1 118 

Siemens Simodrive 611 6SN1118-1NH00-0AA1 6SN1 118 

Siemens Simodrive 611 6SN1118-1NH00-0AA2 6SN1 118 

Siemens Simodrive 611 6SN1118-1NJ01-0AA0 6SN1 118 

SIEMENS SIMODRIVE 6SC6114

Siemens Simodrive 6RA 8261-2 Spin Board C98043-A1098-L

Siemens Simodrive Drive 6SC6500 6SC6 500 6SC6

Siemens Simodrive Drive 6SC6100 6SC6 100 6SC6

Siemens Simodrive 6SC6100-0AA00 Brake Module.

SIEMENS SIMODRIVE LT MODUL 6SN1123-1AA00-0CA2

Siemens Simodrive 6SC6110-0EA00 Module.

Siemens Simodrive 6SN1123-1AB00-0AA0

Siemens Simodrive LT Module 6SN1123 6SN1 123

SIEMENS - SIMODRIVE - 6SC6100-ONA1 ANALOG CONTROL CARD

SIEMENS - SIMODRIVE - 6SC6101-2B-Z -- THREE AXIS RACK

Siemens Simodrive 1FT6 Motor 1FT6105-1AC71-3EH1

Siemens Simodrive Motor 1FT5064-0AF01-2-Z (H40) 1FT5

Siemens Simodrive Motor 1FT5074-0AF01-2-Z (H40) 1FT5

SIEMENS Simodrive 611 6SN1123 6SN1145 6SN1124

Siemens SimoDrive Simo Drive 6SC-6110-0GA01 6SC 6110

Siemens Simodrive 4 Axis Controller

Siemens Simodrive C98043-A1005-L2-15 Control Board

Siemens SimoDrive 6SC6100-OGE01 Drive Board

Siemens SimoDrive 6SC6100-0GC08 Power Supply Board