濡備綍瀹炵幇
P2P
绌块�?/p>
-1
(2006-12-29 10:19:38)
杞?/p>
杞?
鈻?
鍒嗙被锛?/p>
缃戠粶
iptables
涓?/p>
stun
Stun
鍗忚锛?/p>
Rfc3489
銆佽
http://www.ietf.org/rfc/rfc3489.txt
锛夊皢
NAT
绮楃暐鍒嗕负
4
绉嶇被鍨嬶紝鍗?/p>
Full Cone
銆?/p>
Restricted Cone
銆?/p>
Port Restricted Cone
鍜?/p>
Symmetric
銆備妇涓疄闄呬緥瀛愶紙渚?/p>
1
锛夋潵璇?/p>
鏄庤繖鍥涚
NAT
鐨勫尯鍒細
A
鏈哄櫒鍦ㄧ缃戯紙
192.168.0.4
锛?/p>
NAT
鏈嶅姟鍣紙
210.21.12.140
锛?/p>
B
鏈哄櫒鍦ㄥ叕缃戯紙
210.15.27.166
锛?/p>
C
鏈哄櫒鍦ㄥ叕缃戯紙
210.15.27.140
锛?/p>
鐜板湪锛?/p>
A
鏈哄櫒杩炴帴杩?/p>
B
鏈哄櫒锛?/p>
鍋囪鏄?/p>
A
锛?/p>
192.168.0.4:5000
锛?/p>
-> NAT
锛堣浆鎹㈠悗
210.21.12.140:8000
锛?/p>
-> B
锛?/p>
210.15.27.166:2000
锛夈�?/p>
鍚屾椂
A
浠庢潵娌℃湁鍜?/p>
C
閫氫俊杩囥�?/p>
鍒欏浜庝笉鍚岀被鍨嬬殑
NAT
锛屾湁涓嬪垪涓嶅悓鐨勭粨鏋滐細
Full Cone NAT
锛?/p>
C
鍙戞暟鎹埌
210.21.12.140:8000
锛?/p>
NAT
浼氬皢鏁版嵁鍖呴�佸埌
A
锛?/p>
192.168.0.4:5000
锛?/p>
銆?/p>
鍥犱负
NAT
涓婂凡缁忔湁浜?/p>
192.168.0.4:5000
鍒?/p>
210.21.12.140:8000
鐨勬槧灏勩�?/p>
Restricted Cone
锛?/p>
C
鏃犳硶鍜?/p>
A
閫氫俊锛屽洜涓?/p>
A
浠庢潵娌℃湁鍜?/p>
C
閫氫俊杩囷紝
NAT
灏嗘嫆缁?/p>
C
璇曞浘涓?/p>
A
杩炴帴鐨勫姩浣溿�備絾
B
鍙互閫氳繃
210.21.12.140:8000
涓?/p>
A
鐨?/p>
192.168.0.4:5000
閫氫俊锛屼笖杩欓噷
B
鍙?/p>
浠ヤ娇鐢ㄤ换浣曠鍙ｄ笌
A
閫氫俊銆傚锛?/p>
210.15.27.166:2001 -> 210.21.12.140:8000
锛?/p>
NAT
浼氶�佸埌
A
鐨?/p>
5000
绔彛涓娿�?/p>
Port Restricted Cone
锛?/p>
C
鏃犳硶涓?/p>
A
閫氫俊锛屽洜涓?/p>
A
浠庢潵娌℃湁鍜?/p>
C
閫氫俊杩囥�傝�?/p>
B
涔熷彧鑳界敤瀹冪殑
210.15.27.166:2000
涓?/p>
A
鐨?/p>
192.168.0.4:5000
閫氫俊锛屽洜涓?/p>
A
涔熶粠鏉ユ病鏈夊拰
B
鐨勫叾浠栫鍙ｉ�氫俊
杩囥�傝绫诲瀷
NAT
鏄鍙ｅ彈闄愮殑銆?/p>
Symmetric NAT
锛氫笂闈?/p>
3
绉嶇被鍨嬶紝缁熺О涓?/p>
Cone NAT
锛屾湁涓�涓叡鍚岀偣锛氬彧瑕佹槸浠庡悓涓�涓唴閮?/p>
鍦板潃鍜岀鍙ｅ嚭鏉ョ殑鍖咃紝
NAT
閮藉皢瀹冭浆鎹㈡垚鍚屼竴涓閮ㄥ湴鍧�鍜岀鍙ｃ�備絾鏄?/p>
Symmetric
鏈夌偣涓?/p>
鍚岋紝鍏蜂綋琛ㄧ幇鍦細鍙鏄粠鍚屼竴涓唴閮ㄥ湴鍧�鍜岀鍙ｅ嚭鏉ワ紝涓斿埌鍚屼竴涓閮ㄧ洰鏍囧湴鍧�鍜岀鍙ｏ紝
鍒?/p>
NAT
涔熼兘灏嗗畠杞崲鎴愬悓涓�涓閮ㄥ湴鍧�鍜岀鍙ｃ�備絾濡傛灉浠庡悓涓�涓唴閮ㄥ湴鍧�鍜岀鍙ｅ嚭鏉ワ紝鏄?/p>
鍒板彟涓�涓閮ㄧ洰鏍囧湴鍧�鍜岀鍙ｏ紝鍒?/p>
NAT
灏嗕娇鐢ㄤ笉鍚岀殑鏄犲皠锛岃浆鎹㈡垚涓嶅悓鐨勭鍙ｏ紙澶栭儴鍦板潃
鍙湁涓�涓紝鏁呬笉鍙橈級銆傝�屼笖鍜?/p>
Port Restricted Cone
涓�鏍凤紝鍙湁鏇剧粡鏀跺埌杩囧唴閮ㄥ湴鍧�鍙戞潵鍖呯殑
澶栭儴鍦板潃锛屾墠鑳介�氳繃
NAT
鏄犲皠鍚庣殑鍦板潃鍚戣鍐呴儴鍦板潃鍙戝寘銆?/p>
鐜伴拡瀵?/p>
Symmetric NAT
涓句緥璇存槑锛堜緥
2
锛?/p>
:
A
鏈哄櫒杩炴帴杩?/p>
B
鏈哄櫒锛屽亣浣挎槸
A
锛?/p>
192.168.0.4:5000
锛?/p>
-> NAT
锛堣浆鎹㈠悗
210.21.12.140:8000
锛?/p>
-> B
锛?/p>
210.15.27.166:2000
锛?/p>
濡傛灉姝ゆ椂
A
鏈哄櫒锛?/p>
192.168.0.4:5000
锛夎繕鎯宠繛鎺?/p>
C
鏈哄櫒锛?/p>
210.15.27.140:2000
锛夛紝鍒?/p>
NAT
涓婁骇
鐢熶竴涓柊鐨勬槧灏勶紝
瀵瑰簲鐨勮浆鎹㈠彲鑳戒负
A
锛?/p>
192.168.0.4:5000
锛?/p>
-> NAT
锛堣浆鎹㈠悗
210.21.12.140:8001
锛?/p>
-> C
锛?/p>
210.15.27.140:2000
锛夈�傛鏃讹紝
B
鍙兘鐢ㄥ畠鐨?/p>
210.15.27.166:2000
閫氳繃
NAT
鐨?/p>
210.21.12.140:8000
涓?/p>
A
鐨?/p>
192.168.0.4:5000
閫氫俊锛?/p>
C
涔熷彧鑳界敤瀹冪殑
210.15.27.140:2000
閫氳繃
NAT
鐨?/p>
210.21.12.140:8001
涓?/p>
A
鐨?/p>
192.168.0.4:5000
閫氫俊锛?/p>
鑰?/p>
B
鎴栬�?/p>
C
鐨勫叾浠栫鍙ｅ垯鍧囦笉鑳?/p>
鍜?/p>
A
鐨?/p>
192.168.0.4:5000
閫氫俊銆?/p>
閫氳繃涓婇潰鐨勪緥瀛愶紝鎴戜滑娓呮浜?/p>
Stun
鍗忚瀵?/p>
NAT
杩涜鍒嗙被鐨勪緷鎹�?/p>
閭ｄ箞锛屾垜浠幇鍦ㄦ牴鎹笂杩?