IC697CGR935

IC697CGR935

和快速的查找算法。

　　在實(shí)現(xiàn)當(dāng)中，我們選用采用索引查詢的散列表來(lái)作為存儲(chǔ)NAT映射表項(xiàng)的數(shù)據(jù)結(jié)構(gòu)。使用協(xié)議類型值、內(nèi)部網(wǎng)絡(luò)地址和端口來(lái)計(jì)算散列值，并結(jié)合映射表項(xiàng)的標(biāo)志來(lái)確定需要做地址翻譯的IP數(shù)據(jù)包。

　　如果當(dāng)前的IP數(shù)據(jù)包是外出的IP數(shù)據(jù)包，但是沒(méi)有匹配到一個(gè)合適的映射表項(xiàng)，那么NAT將建立一個(gè)新的映射表項(xiàng)，添加到散列表中。

　　如果當(dāng)前的IP數(shù)據(jù)包是來(lái)自于外部網(wǎng)絡(luò)的，要么能夠匹配到一項(xiàng)合適的映射表項(xiàng)，要么目的端口已經(jīng)被配置為端口轉(zhuǎn)發(fā)（在這種情況下，NAT將依據(jù)端口轉(zhuǎn)發(fā)配置，在NAT映射表中靜態(tài)添加一個(gè)入口），否則，將不會(huì)改變這個(gè)IP數(shù)據(jù)包。

　　為了避免已經(jīng)出現(xiàn)異常的連接繼續(xù)占用系統(tǒng)資源，在每個(gè)映射表項(xiàng)的定時(shí)器超時(shí)后，其回掉函數(shù)將刪除存儲(chǔ)在散列表中的對(duì)應(yīng)的NAT映射表項(xiàng)。

IC697CGR935◆ 聯(lián)系人： 陳女士）
◆ 電話：0592-5709825
◆ 聯(lián)系手機(jī)：18030229053
◆ QQ: 2479261344
◆ 傳真：0592-5709828（備注“陳女生”收）
◆ E-mail： 2479261344@qq.com

IC697CGR935Siemens 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