{"id":476204,"date":"2023-08-09T07:26:52","date_gmt":"2023-08-09T07:26:52","guid":{"rendered":""},"modified":"2023-09-05T11:12:15","modified_gmt":"2023-09-05T11:12:15","slug":"cgnat","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/kr\/wiki\/cgnat\/","title":{"rendered":"CGNAT"},"content":{"rendered":"<p>\uce90\ub9ac\uc5b4\uae09 \ub124\ud2b8\uc6cc\ud06c \uc8fc\uc18c \ubcc0\ud658(CGNAT\ub77c\uace0\ub3c4 \ud568)\uc740 IP \uc8fc\uc18c \uad00\ub9ac \uc601\uc5ed\uc5d0\uc11c \uc911\ucd94\uc801\uc778 \ud601\uc2e0\uc785\ub2c8\ub2e4. IPv4 \uc8fc\uc18c \uace0\uac08 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \ud2b9\ubcc4\ud788 \uace0\uc548\ub41c IETF(Internet Engineering Task Force) \ud45c\uc900\uc785\ub2c8\ub2e4.<\/p>\n<h2>CGNAT\uc758 \uae30\uc6d0\uacfc \uc9c4\ud654 \ucd94\uc801<\/h2>\n<p>CGNAT\uc758 \uc2dc\uc791\uc740 21\uc138\uae30 \ucd08\ub85c \uac70\uc2ac\ub7ec \uc62c\ub77c\uac11\ub2c8\ub2e4. \uc774\ub294 2011\ub144 RFC 6264\uc5d0 \ub530\ub77c IETF\uc5d0\uc11c \ucc98\uc74c \uc81c\uc548\ub418\uc5c8\uc73c\uba70 \ub098\uc911\uc5d0 RFC 6888\uc744 \ud1b5\ud574 2012\ub144\uc5d0 \ud45c\uc900\ud654\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc774 \uc0dd\uc131\uc758 \uc8fc\uc694 \ub3d9\uc778\uc740 IPv4 \uc8fc\uc18c\uc758 \uace0\uac08\uacfc IPv6\uc758 \ub290\ub9b0 \ucc44\ud0dd\uc774\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n<p>32\ube44\ud2b8 \uc8fc\uc18c\ub97c \uc0ac\uc6a9\ud558\ub294 IPv4\uc758 \ucd5c\ub300 \uc81c\ud55c\uc740 \uc57d 43\uc5b5 \uac1c\uc758 \uace0\uc720 \uc8fc\uc18c\uc785\ub2c8\ub2e4. \uc778\ud130\ub137\uc5d0 \uc5f0\uacb0\ub41c \uc7a5\uce58 \uc218\uac00 \uc774 \uc81c\ud55c\uc744 \ucd08\uacfc\ud558\uae30 \uc2dc\uc791\ud558\uba74\uc11c CGNAT\ub294 \uc5ec\ub7ec \uc7a5\uce58\uac00 \ub2e8\uc77c \uacf5\uc6a9 IPv4 \uc8fc\uc18c\ub97c \uacf5\uc720\ud560 \uc218 \uc788\ub3c4\ub85d \ud558\ub294 \uc2e4\ud589 \uac00\ub2a5\ud55c \uc194\ub8e8\uc158\uc73c\ub85c \ub5a0\uc62c\ub790\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>CGNAT \uac1c\ub150 \ud480\uae30<\/h2>\n<p>CGNAT\ub294 \uc5ec\ub7ec \uc7a5\uce58\uac00 \ub2e8\uc77c \uacf5\uc6a9 IPv4 \uc8fc\uc18c\ub97c \uacf5\uc720\ud560 \uc218 \uc788\ub3c4\ub85d \ud558\uc5ec IPv4 \uc8fc\uc18c \uacf5\uac04\uc758 \uc218\uba85\uc744 \uc5f0\uc7a5\ud558\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \uae30\uc220\uc785\ub2c8\ub2e4. \uc774\ub294 IP \uc8fc\uc18c \uacf5\uac04\uc744 \ub2e4\ub978 \uc8fc\uc18c \uacf5\uac04\uc73c\ub85c \ub2e4\uc2dc \ub9e4\ud551\ud558\ub294 \ubc29\ubc95\uc778 NAT(Network Address Translation)\uc758 \ud55c \uc720\ud615\uc785\ub2c8\ub2e4.<\/p>\n<p>\uae30\uc874 NAT \ud658\uacbd\uc5d0\uc11c\ub294 \ub85c\uceec \ub124\ud2b8\uc6cc\ud06c \ub0b4\uc758 \uc7a5\uce58\uac00 \uc778\ud130\ub137 \ud1b5\uc2e0\uc744 \uc704\ud574 \uacf5\uc6a9 IP \uc8fc\uc18c\ub97c \uacf5\uc720\ud569\ub2c8\ub2e4. CGNAT\ub294 ISP(\uc778\ud130\ub137 \uc11c\ube44\uc2a4 \uacf5\uae09\uc790) \uc218\uc900\uc5d0\uc11c \ub450 \ubc88\uc9f8 NAT \uacc4\uce35\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc774\ub97c \ud55c \ub2e8\uacc4 \ub354 \ubc1c\uc804\uc2dc\ud0b5\ub2c8\ub2e4. \uc774\ub294 \uac01\uac01 \ub85c\uceec NAT\ub97c \uc0ac\uc6a9\ud558\ub294 \uc5ec\ub7ec \uace0\uac1d\uc774 \ub2e8\uc77c \uacf5\uc6a9 IP \uc8fc\uc18c\ub97c \uacf5\uc720\ud560 \uc218 \uc788\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n<h2>CGNAT\uc758 \uae30\ub2a5 \ud0d0\uc0c9<\/h2>\n<p>\uae30\ubcf8\uc801\uc73c\ub85c CGNAT\ub294 \uae30\uc874 NAT\uc640 \ub3d9\uc77c\ud55c \uc6d0\uce59\uc5d0 \ub530\ub77c \uc791\ub3d9\ud558\uc9c0\ub9cc \ucd94\uac00 \ubcc0\ud658 \uc218\uc900\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub370\uc774\ud130 \ud328\ud0b7\uc774 \ub85c\uceec \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c \uc778\ud130\ub137\uc73c\ub85c \uc774\ub3d9\ud560 \ub54c \ub85c\uceec NAT\ub97c \ud1b5\uacfc\ud558\uc5ec \uac1c\uc778 IP \uc8fc\uc18c\ub97c \uacf5\uc6a9 IP \uc8fc\uc18c\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \uc774\ub7ec\ud55c \ud328\ud0b7\uc740 ISP\uc758 CGNAT\uc5d0 \ub3c4\ub2ec\ud558\uace0 \uacf5\uc6a9 IP \uc8fc\uc18c\ub97c \ub2e4\uc2dc \ud55c \ubc88 \ubcc0\uacbd\ud569\ub2c8\ub2e4. \uc778\ubc14\uc6b4\ub4dc \ub370\uc774\ud130 \ud328\ud0b7\uc758 \uacbd\uc6b0 \ud504\ub85c\uc138\uc2a4\uac00 \ubc18\ub300\uac00 \ub429\ub2c8\ub2e4.<\/p>\n<p>CGNAT \uc2dc\uc2a4\ud15c\uc758 \uc8fc\uc694 \uad6c\uc131 \uc694\uc18c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<ol>\n<li>\ubc88\uc5ed\uc744 \uc218\ud589\ud558\ub294 CGNAT \uc7a5\uce58 \uc790\uccb4\uc785\ub2c8\ub2e4.<\/li>\n<li>CGNAT\uc5d0 \ud560\ub2f9\ub41c \uacf5\uc6a9 IP \uc8fc\uc18c \ud480\uc785\ub2c8\ub2e4.<\/li>\n<li>\ub0b4\ubd80 \uac1c\uc778 IP \uc8fc\uc18c\ub97c \uc678\ubd80 \uacf5\uc6a9 IP \uc8fc\uc18c\ub85c \ub9e4\ud551\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n<h2>CGNAT\uc758 \uc8fc\uc694 \ud2b9\uc9d5<\/h2>\n<p>CGNAT\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uba87 \uac00\uc9c0 \uc8fc\ubaa9\ud560\ub9cc\ud55c \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<ol>\n<li><strong>\uc8fc\uc18c \ubcf4\uc874<\/strong>: CGNAT\ub294 \uc5ec\ub7ec \uc7a5\uce58\uac00 \ub2e8\uc77c \uacf5\uc6a9 IP \uc8fc\uc18c\ub97c \uacf5\uc720\ud560 \uc218 \uc788\ub3c4\ub85d \ud568\uc73c\ub85c\uc368 IPv4 \uc8fc\uc18c \uacf5\uac04\uc758 \uc218\uba85\uc744 \uc5f0\uc7a5\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ud22c\uba85\ub3c4<\/strong>: \ub300\ubd80\ubd84\uc758 \uc0ac\uc6a9\uc790\uc640 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uacbd\uc6b0 CGNAT\uc758 \uc874\uc7ac\ub294 \uc644\uc804\ud788 \ud22c\uba85\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ud638\ud658\uc131<\/strong>: CGNAT\ub294 IPv4 \ubc0f IPv6 \uc8fc\uc18c \ubaa8\ub450\uc5d0\uc11c \uc791\ub3d9\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \ubaa8\ub4e0 \uc720\ud615\uc758 \ub124\ud2b8\uc6cc\ud06c\uc640 \ud638\ud658\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\ud655\uc7a5\uc131<\/strong>: CGNAT\ub294 \ub2e4\uc218\uc758 IP \uc8fc\uc18c \ubcc0\ud658\uc744 \ucc98\ub9ac\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \ub300\uaddc\ubaa8 ISP\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n<h2>CGNAT\uc758 \uce74\ud14c\uace0\ub9ac<\/h2>\n<p>\uae30\ub2a5\uacfc \uc751\uc6a9 \ubc94\uc704\uc5d0 \ub530\ub77c CGNAT\ub294 \ud06c\uac8c \ub450 \uac00\uc9c0 \ubc94\uc8fc\ub85c \ubd84\ub958\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ol>\n<li><strong>\uae30\ubcf8 CGNAT<\/strong>: \uacf5\uc6a9 IP \uc8fc\uc18c\ub97c \uac1c\uc778 IP \uc8fc\uc18c\ub85c \uac04\ub2e8\ud55c \uc77c\ub300\uc77c \ubcc0\ud658\uc744 \uc218\ud589\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uace0\uae09 CGNAT<\/strong>: \uc77c\ub300\uc77c \ubc88\uc5ed \uc678\uc5d0\ub3c4 \ud3ec\ud2b8 \ucc28\ub2e8, \uc138\uc158 \uc81c\ud55c, \ub85c\uae45\uacfc \uac19\uc740 \uace0\uae09 \uae30\ub2a5\ub3c4 \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n<h2>CGNAT\uc758 \ud65c\uc6a9, \ubb38\uc81c \ubc0f \ud574\uacb0 \ubc29\ubc95<\/h2>\n<p>CGNAT\ub294 \uc8fc\ub85c ISP\uac00 IPv4 \uc8fc\uc18c \ubd80\uc871\uc744 \uad00\ub9ac\ud558\uae30 \uc704\ud574 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub300\uaddc\ubaa8 \uc870\uc9c1\uc5d0\uc11c \uacf5\uc6a9 IP \uc8fc\uc18c \uc0ac\uc6a9\uc744 \ud1b5\ud569\ud558\ub294 \ub370\uc5d0\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc774\uc810\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 CGNAT\ub294 \uba87 \uac00\uc9c0 \ubb38\uc81c\ub97c \uc77c\uc73c\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ul>\n<li>\uc774\ub294 \ud2b9\uc815 P2P(Peer-to-Peer) \uc11c\ube44\uc2a4 \ubc0f \uc628\ub77c\uc778 \uac8c\uc784 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ubc29\ud574\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\uc9c0\ub9ac\uc801 \uc704\uce58 \ubc0f IP \uae30\ubc18 \uc2dd\ubcc4\uc774 \ubcf5\uc7a1\ud574\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\ud3ec\ud2b8 \uc804\ub2ec\uc774 \ud544\uc694\ud55c \uc11c\ube44\uc2a4\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc774\ub7ec\ud55c \ubb38\uc81c\uc5d0 \ub300\ud55c \ud574\uacb0 \ubc29\ubc95\uc740 \uace0\uae09 CGNAT \uae30\ub2a5\uc744 \uc0ac\uc6a9\ud558\uac70\ub098 IPv6 \ub610\ub294 ALG(\uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \uacc4\uce35 \uac8c\uc774\ud2b8\uc6e8\uc774)\uc640 \uac19\uc740 \ub300\uccb4 \uae30\uc220\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uacfc \uad00\ub828\uc774 \uc788\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>CGNAT \ubc0f \uc720\uc0ac \uac1c\ub150\uc758 \ube44\uad50 \uac1c\uc694<\/h2>\n<table>\n<thead>\n<tr>\n<th>\uac1c\ub150<\/th>\n<th>\uac04\ub7b5\ud55c \uc124\uba85<\/th>\n<th>\uc8fc\uc694 \uc7a5\uc810<\/th>\n<th>\uc8fc\uc694 \uc81c\ud55c \uc0ac\ud56d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>CGNAT<\/td>\n<td>\uc8fc\ub85c IPv4 \uc8fc\uc18c \ubcf4\uc874\uc744 \uc704\ud55c \ub2e4\uc911 \uacc4\uce35 NAT<\/td>\n<td>IPv4 \uc8fc\uc18c \uc0ac\uc6a9 \uadf9\ub300\ud654<\/td>\n<td>\ud2b9\uc815 \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc5d0 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc74c<\/td>\n<\/tr>\n<tr>\n<td>\ud45c\uc900 NAT<\/td>\n<td>\ub85c\uceec \ub124\ud2b8\uc6cc\ud06c \ub0b4\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \ub2e8\uc77c NAT \uacc4\uce35<\/td>\n<td>\ub0b4\ubd80 \ub124\ud2b8\uc6cc\ud06c \uad00\ub9ac \ub2e8\uc21c\ud654<\/td>\n<td>IPv4 \uc8fc\uc18c \uace0\uac08\uc744 \ud574\uacb0\ud558\uc9c0 \ubabb\ud568<\/td>\n<\/tr>\n<tr>\n<td>IPv6<\/td>\n<td>\ud6e8\uc52c \ub354 \ud070 \uc8fc\uc18c \uacf5\uac04\uc744 \uac16\ucd98 \ucd5c\uc2e0 IP \uc8fc\uc18c \ud45c\uc900<\/td>\n<td>IPv4 \uc8fc\uc18c \uace0\uac08\uc744 \ud574\uacb0\ud569\ub2c8\ub2e4.<\/td>\n<td>\ub290\ub9ac\uace0 \ubcf5\uc7a1\ud55c \ucc44\ud0dd \ud504\ub85c\uc138\uc2a4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>CGNAT \uad00\ub828 \ubbf8\ub798 \uc804\ub9dd \ubc0f \uae30\uc220<\/h2>\n<p>\uc778\ud130\ub137\uc774 \ubc1c\uc804\ud568\uc5d0 \ub530\ub77c CGNAT\ub3c4 \ubc1c\uc804\ud569\ub2c8\ub2e4. \uadf8 \ubbf8\ub798\ub294 IPv6\ub85c\uc758 \ucd5c\uc885 \uc804\ud658\uacfc \uc5bd\ud600 \uc788\ub294 \uac83 \uac19\uc2b5\ub2c8\ub2e4. CGNAT\ub294 IPv4 \uace0\uac08\uc5d0 \ub300\ud55c \uc194\ub8e8\uc158\uc744 \uc81c\uacf5\ud558\uc9c0\ub9cc \uc774\ub294 \uc77c\uc2dc\uc801\uc778 \uc194\ub8e8\uc158\uc77c \ubfd0\uc785\ub2c8\ub2e4. IPv6\uac00 \ub354\uc6b1 \ubcf4\ud3b8\uc801\uc73c\ub85c \ucc44\ud0dd\ub428\uc5d0 \ub530\ub77c CGNAT\uc5d0 \ub300\ud55c \uc758\uc874\ub3c4\uac00 \uc904\uc5b4\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ubc18\uba74\uc5d0 CGNAT\uc758 \uace0\uae09 \ud615\ud0dc\ub294 \uad00\ub828 \ubb38\uc81c\ub97c \ub354 \uc798 \ucc98\ub9ac\ud558\uae30 \uc704\ud574 \uc9c0\uc18d\uc801\uc73c\ub85c \uac1c\ubc1c\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc5d0\ub294 \ud5a5\uc0c1\ub41c \ub85c\uae45, \ud5a5\uc0c1\ub41c P2P \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ucc98\ub9ac \ubc0f \uace0\uae09 \uc138\uc158 \uad00\ub9ac\uac00 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/p>\n<h2>\ud504\ub85d\uc2dc \uc11c\ubc84 \ubc0f CGNAT<\/h2>\n<p>\ud504\ub85d\uc2dc \uc11c\ubc84\uc640 CGNAT\ub294 \uacf5\ud1b5 \uc2a4\ub808\ub4dc\ub97c \uacf5\uc720\ud569\ub2c8\ub2e4. \ub458 \ub2e4 \uc5ec\ub7ec \uc7a5\uce58\ub97c \ub098\ud0c0\ub0b4\ub294 \ud558\ub098\uc758 IP \uc8fc\uc18c \uac1c\ub150\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4. \ud504\ub85d\uc2dc \uc11c\ubc84\ub294 \uc775\uba85\uc131\uc744 \uc81c\uacf5\ud558\uace0 \ucf58\ud150\uce20 \uc81c\ud55c\uc744 \uc6b0\ud68c\ud560 \uc218 \uc788\uc9c0\ub9cc IPv4 \uc8fc\uc18c \uace0\uac08 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uc9c0\ub294 \ubabb\ud569\ub2c8\ub2e4. CGNAT\uac00 \uac1c\uc785\ud558\ub294 \uacf3\uc774 \ubc14\ub85c \uc5ec\uae30\uc785\ub2c8\ub2e4. \ud504\ub85d\uc2dc \uc11c\ubc84\uc640 CGNAT\uc758 \uc0c1\ud638 \uc791\uc6a9\uc740 \ud2b9\uc815 \uc124\uc815\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc9c0\ub9cc \uc77c\ubc18\uc801\uc73c\ub85c \ub124\ud2b8\uc6cc\ud06c \ud658\uacbd\uc5d0\uc11c \uc6d0\ud65c\ud558\uac8c \ud568\uaed8 \uc791\ub3d9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uad00\ub828\ub41c \ub9c1\ud06c\ub4e4<\/h2>\n<ol>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc6888\" target=\"_new\" rel=\"noopener nofollow\">RFC 6888 \u2013 IETF<\/a><\/li>\n<li><a href=\"https:\/\/blogs.cisco.com\/sp\/cgn-the-dos-and-donts\" target=\"_new\" rel=\"noopener nofollow\">CGNAT: IPv4 \uace0\uac08\uc5d0 \ub300\ud55c \ub2e8\uae30 \uc194\ub8e8\uc158 \u2013 Cisco \ube14\ub85c\uadf8<\/a><\/li>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc8200\" target=\"_new\" rel=\"noopener nofollow\">IPv6 \u2013 IETF<\/a><\/li>\n<li><a href=\"https:\/\/www.juniper.net\/documentation\/en_US\/junos\/topics\/concept\/nat-overview.html\" target=\"_new\" rel=\"noopener nofollow\">\ub124\ud2b8\uc6cc\ud06c \uc8fc\uc18c \ubcc0\ud658 \uc774\ud574 - \uc8fc\ub2c8\ud37c \ub124\ud2b8\uc6cd\uc2a4<\/a><\/li>\n<\/ol>\n<p>\uc774 \uae30\uc0ac\uc758 \uc815\ubcf4\ub294 CGNAT, \uadf8 \uae30\uc6d0, \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8, \uc81c\ud55c \uc0ac\ud56d \ubc0f \uc7a0\uc7ac\uc801\uc778 \ubbf8\ub798\uc5d0 \ub300\ud55c \ud3ec\uad04\uc801\uc778 \uc774\ud574\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub610\ud55c OneProxy\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \uac83\uacfc \uac19\uc740 \ud504\ub85d\uc2dc \uc11c\ubc84\uac00 CGNAT\uc640 \uc0c1\ud638 \uc791\uc6a9\ud558\ub294 \ubc29\ubc95\uc744 \uc870\uc0ac\ud558\uc5ec \uc774\ub7ec\ud55c \uc0c1\ud638 \uc5f0\uacb0\ub41c \ub124\ud2b8\uc6cc\ud06c \uae30\uc220\uc5d0 \ub300\ud55c \uc804\uccb4\uc801\uc778 \uad00\uc810\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>","protected":false},"featured_media":476205,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476204","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Carrier-Grade Network Address Translation (CGNAT): An In-depth Look<\/mark>","faq_items":[{"question":"What is Carrier-Grade Network Address Translation (CGNAT)?","answer":"<p>CGNAT is an Internet Engineering Task Force (IETF) standard specifically designed to mitigate the problem of IPv4 address exhaustion. It allows multiple devices to share a single public IPv4 address, effectively extending the lifespan of the IPv4 address space.<\/p>"},{"question":"When was CGNAT first introduced?","answer":"<p>CGNAT was initially proposed by the IETF in 2011 and later standardized in 2012. Its introduction was driven by the rapidly depleting pool of IPv4 addresses and the slow adoption of IPv6.<\/p>"},{"question":"How does CGNAT work?","answer":"<p>CGNAT operates much like a traditional NAT, but with an extra layer of translation. When data packets move from a local network to the Internet, they pass through the local NAT, which converts the private IP address to a public one. These packets then reach the CGNAT at the ISP, which once again changes the public IP address. The process is reversed for inbound data packets.<\/p>"},{"question":"What are some key features of CGNAT?","answer":"<p>Key features of CGNAT include address conservation (allowing many devices to share a single public IP address), transparency (being unnoticeable to most users and applications), compatibility (working with both IPv4 and IPv6 addresses), and scalability (handling a large number of IP address translations).<\/p>"},{"question":"What types of CGNAT exist?","answer":"<p>There are two broad categories of CGNAT: Basic CGNAT, which performs simple one-to-one translation of public IP addresses to private ones, and Advanced CGNAT, which supports additional features like port blocking, session limiting, and logging.<\/p>"},{"question":"What are some issues with CGNAT and how can they be solved?","answer":"<p>CGNAT can pose problems for certain peer-to-peer (P2P) services and online gaming applications, complicate geo-location and IP-based identification, and impact services that require port forwarding. These issues can be tackled by using advanced CGNAT features or alternative technologies like IPv6 or Application Layer Gateways (ALGs).<\/p>"},{"question":"What is the future of CGNAT?","answer":"<p>The future of CGNAT is likely intertwined with the adoption of IPv6. While CGNAT provides a temporary solution to IPv4 exhaustion, as IPv6 becomes more universally adopted, the reliance on CGNAT may diminish. However, advanced forms of CGNAT continue to evolve to better handle the associated challenges.<\/p>"},{"question":"How do proxy servers interact with CGNAT?","answer":"<p>Proxy servers and CGNAT share a common thread in that they both involve the concept of one IP address representing multiple devices. While proxy servers can provide anonymity and bypass content restrictions, they don't solve the issue of IPv4 address exhaustion. Generally, proxy servers and CGNAT can function together seamlessly in a network environment.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki\/476204","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki\/476204\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/media\/476205"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/media?parent=476204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}