{"id":3843,"date":"2026-01-07T15:12:16","date_gmt":"2026-01-07T06:12:16","guid":{"rendered":"https:\/\/www.freelifemakers.org\/wordpress\/?p=3843"},"modified":"2026-01-07T16:04:52","modified_gmt":"2026-01-07T07:04:52","slug":"ip-router-port-forwarding-dhcp-ip-address-fixation-ddns-settings","status":"publish","type":"post","link":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/2026\/01\/07\/ip-router-port-forwarding-dhcp-ip-address-fixation-ddns-settings\/","title":{"rendered":"ip\uacf5\uc720\uae30 \ud3ec\ud2b8\ud3ec\uc6cc\ub529,DHCP\uc544\uc774\ud53c\uc8fc\uc18c\uace0\uc815,ddns\uc124\uc815\/IP router port forwarding, DHCP IP address fixation, DDNS settings"},"content":{"rendered":"\n

\ud83d\udc49\ud83c\udffb \uc544\ub798\ub294 ip\uacf5\uc720\uae30\uc5d0\uc11c \ud3ec\ud2b8\ud3ec\uc6cc\ub529,\uc544\uc774\ud53c \uc8fc\uc18c\uace0\uc815 \uc124\uc815,ddns\uc124\uc815\uc5d0 \ub300\ud55c \ub0b4\uc6a9\uc785\ub2c8\ub2e4.
Below is information about port forwarding, fixed IP address settings, and DDNS settings on an IP router.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uc544\ub798\ub294 \uad6d\uc0b0 \uacf5\uc720\uae30 \uc911 iptime\ubaa8\ub378\uc5d0\ub9cc \ud574\ub2f9\ud569\ub2c8\ub2e4.
Below is only applicable to the iptime model among domestic routers.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uad6d\ub0b4 \ub2e4\ub978\uc81c\ud3fc\uc774\ub098 \ub2e4\ub978 \ub098\ub77c \uc81c\ud488\uc5d0\ub3c4 \ub3d9\uc77c\ud55c \uae30\ub2a5\uc774 \uc788\ub2e4\uace0 \uc54c\uace0 \uc788\uc2b5\ub2c8\ub2e4.
I know that other domestic and foreign products have the same function.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uc778\ud130\ub137\uc5d0 \uc5f0\uacb0\ud558\ub824\uba74 \uacf5\uc778 \uc544\uc774\ud53c\uac00 \ud544\uc694\ud558\uba70 \uc804 \uc138\uacc4\uc5d0\uc11c \uc720\uc77c\ud55c \uc8fc\uc18c\ub85c, \uc778\ud130\ub137 \uc11c\ube44\uc2a4 \uc81c\uacf5\uc5c5\uccb4(ISP, \uc608: KT, SKT, LG U+)\ub4f1\uc73c\ub85c\ubd80\ud130 \uc9c1\uc811 \ud560\ub2f9\ubc1b\ub294 \uc8fc\uc18c\uc785\ub2c8\ub2e4.
To connect to the Internet, you need a public IP address, which is a unique address worldwide and is directly assigned by your Internet Service Provider (ISP, e.g. KT, SKT, LG U+).<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uadf8\ub798\uc11c \uc6d0\ub798\ub294 192.168\ub85c \uc2dc\uc791\ud558\ub294 \uc544\uc774\ud53c\uc8fc\uc18c\ub294 \uc778\ud130\ub137\uc5d0 \uc5f0\uacb0\ub420 \uc218 \uc5c6\uace0 \uc774\ub7f0 \uc544\uc774\ud53c \uc8fc\uc18c\ub97c \ub0b4\ubd80 \uc544\uc774\ud53c \uc8fc\uc18c\ub77c\uace0 \ubd80\ub985\ub2c8\ub2e4.
So, originally, IP addresses starting with 192.168 cannot connect to the Internet, and these IP addresses are called internal IP addresses.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uc774\ub7f0 \ub0b4\ubd80\uc544\uc774\ud53c \uc8fc\uc18c\ub294 \uc778\ud130\ub137\uc774 \ub418\uc9c0 \uc54a\ub294 \ud658\uacbd\uc5d0\uc11c pc\uac00 \uc5ec\ub7ec\ub300 \uc788\uc744 \uacbd\uc6b0 \ud30c\uc77c\uacf5\uc720\ub098 \ud504\ub9b0\ud130 \uc0ac\uc6a9\uc744 \uc704\ud574\uc11c \uc0ac\uc6a9\ud558\ub294 \uc8fc\uc18c\uc785\ub2c8\ub2e4.
This internal IP address is used for file sharing or printer use when there are multiple PCs in an environment without Internet access.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uc778\ud130\ub137 \uacf5\uc720\uae30\ub294 \uacf5\uc778\uc544\uc774\ud53c\uac00 \ud560\ub2f9\ub418\uace0 \uc774 \uacf5\uc720\uae30\uac00 \uc815\ubcf4\ub97c \ubc1b\uc544\uc11c \ub0b4\ubd80\uc544\uc774\ud53c\uc5d0 \uc815\ubcf4\ub97c \uc804\ub2ec\ud574\uc8fc\ub294 \uae30\ub2a5\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.
Internet routers are assigned public IP addresses and have the function of receiving information and transmitting it to internal IP addresses.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uacf5\uc778\uc544\uc774\ud53c \uc8fc\uc18c \uc911\uc5d0 \uace0\uc815\uc544\uc774\ud53c\uc8fc\uc18c\ub294 \uc694\uae08\uc774 \ube44\uc2f8\uace0 \ub300\ubd80\ubd84 \uac00\uc815\uc9d1\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub294 \uc544\uc774\ud53c \uc8fc\uc18c\ub294 \uc720\ub3d9\uc544\uc774\ud53c \uc785\ub2c8\ub2e4.
Among public IP addresses, static IP addresses are expensive, and most IP addresses used in homes are dynamic IP addresses.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uc720\ub3d9\uc544\uc774\ud53c\ub294 \uc544\uc774\ud53c \uc8fc\uc18c\uac00 \uace0\uc815 \ub418\uc5b4 \uc788\uc9c0\uc54a\uace0 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc73c\uba74 \ub2e4\ub978 \uc0ac\ub78c\uc758 pc\uc5d0 \ud560\ub2f9\ub418\uac8c \ub429\ub2c8\ub2e4.
A dynamic IP address is not fixed and if not used, it will be assigned to someone else’s PC.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uc6b0\ub9ac\uac00 \ubcf4\ud1b5 \ub3c4\uba54\uc778\uc744 \uc0ac\uc6a9\ud558\ub294 \uc11c\ubc84\ub294 \ub2e4 \uace0\uc815\uc544\uc774\ud53c\uac00 \ud560\ub2f9\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.
The servers we usually use for domains are all assigned static IP addresses.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \ub0b4\ubd80 \uc544\uc774\ud53c \uc8fc\uc18c\uac00 \ud560\ub2f9\ub41c pc\ub294 \uacf5\uc720\uae30\uc640 \uc5f0\uacb0\ub418\uc5b4 \uc788\uace0 \uacf5\uc720\uae30 \uc678\ubd80\uc758 \uc778\ud130\ub137 \uc138\uc0c1\uc73c\ub85c \ub098\uac08 \uc218 \uc788\uc9c0\ub9cc \uc778\ud130\ub137\uc5d0 \uc18d\ud55c \uc678\ubd80 \uc138\uc0c1(\ub2e4\ub978 pc\ub098 \uc11c\ubc84)\uc740 \uacf5\uc720\uae30\uae4c\uc9c0\ub9cc \uc811\uadfc \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.
A PC assigned an internal IP address is connected to the router and can access the Internet world outside the router, but the outside world (other PCs or servers) belonging to the Internet can only access the router.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uc544\uc774\ud53c\uc8fc\uc18c\ub97c \uc790\ub3d9\uc73c\ub85c \ud560\ub2f9\ud558\uace0 \uad00\ub9ac\ud574\uc8fc\ub294 \uc11c\ubc84\ub97c DHCP(Dynamic Host Configuration Protocol)\uc11c\ubc84\ub77c\uace0 \ud569\ub2c8\ub2e4.
A server that automatically assigns and manages IP addresses is called a DHCP (Dynamic Host Configuration Protocol) server.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \ubcf4\ud1b5 \uc77c\ubc18\uac00\uc815\uc9d1\uc758 \uacbd\uc6b0 \uacf5\uc778\uc544\uc774\ud53c1\uac1c,\uacf5\uc720\uae30 1\ub300,\uacf5\uc720\uae30\uc5d0 \uc5f0\uacb0\ub41cpc \ubc0f \ubaa8\ubc14\uc77c \ud3f0 \uc774\ub7f0 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.
In the case of a typical home, there is usually one public IP, one router, and a PC and mobile phone connected to the router.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uc774\ub7f0 \ud658\uacbd\uc5d0\uc11c pc\ud55c\ub300\ub97c \uc11c\ubc84\ub85c \uc0ac\uc6a9\ud558\ub824\uba74 \uc704\uc758 \ud658\uacbd\uc744 \ubc14\uafd4 \uc918\uc57c \ud569\ub2c8\ub2e4.
In this environment, if you want to use a PC as a server, you need to change the environment above.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb \uadf8\ub798\uc11c \ud3ec\ud2b8\ud3ec\uc6cc\ub529,\ub0b4\ubd80\uc544\uc774\ud53c \uc8fc\uc18c\uace0\uc815,ddns\uc124\uc815\ub4f1\uc758 \ubc29\ubc95\uc774 \ud544\uc694 \ud569\ub2c8\ub2e4.
So, you need methods such as port forwarding, fixing the internal IP address, and setting up DDNS.<\/p>\n\n\n\n

\ud83d\udc49\ud83c\udffb\ud3ec\ud2b8 \ud3ec\uc6cc\ub529 \/ port forwarding<\/p>\n\n\n\n

\u2714\ufe0f \uc544\ub798\ub294 iptime \uacf5\uc720\uae30\uc758 \ud3ec\ud2b8\ud3ec\uc6cc\ub529 \uc124\uc815\uc785\ub2c8\ub2e4.
Below are the port forwarding settings for the iptime router.<\/p>\n\n\n\n

\u2714\ufe0f \uc544\ub798\uc758 \uc124\uc815\uc744 \uae30\uc785\ud558\uace0 \uc801\uc6a9\uc744 \ud074\ub9ad\ud558\uba74 \uc0c1\ub2e8 “\ud3ec\ud2b8\ud3ec\uc6cc\ub4dc \uc124\uc815” \uc544\ub798 \ubaa9\ub85d\uc5d0 \uc801\uc6a9\ub41c \uc124\uc815\uc774 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.
After filling in the settings below and clicking Apply, the applied settings will appear in the list under “Port Forwarding Settings” at the top.<\/p>\n\n\n\n

\u2714\ufe0f \uc800 \uac19\uc740 \uacbd\uc6b0\ub294 VPN\uc744 \uc0ac\uc6a9\ud558\uae30 \ub54c\ubb38\uc5d0 UDP51820\uc744 \ud3ec\ud2b8 \ud3ec\uc6cc\ub529 \ud588\uc2b5\ub2c8\ub2e4.
In my case, I use a VPN, so I port forwarded UDP51820.<\/p>\n\n\n\n

\u2714\ufe0f \uc5ec\ub7ec\ubd84\uc774 \uc6f9\uc11c\ubc84\ub97c \uc0ac\uc6a9\ud558\uc2dc\uae38 \uc6d0\ud55c\ub2e4\uba74 80\ud3ec\ud2b8\ub97c \ud3ec\uc6cc\ub529 \ud558\uc2dc\uba74 \ub429\ub2c8\ub2e4.
If you want to use a web server, you can forward port 80.<\/p>\n\n\n\n

\"\"
\ud3ec\ud2b8\ud3ec\uc6cc\ub529\/Port Forwarding<\/figcaption><\/figure>\n\n\n\n

\ud83d\udc49\ud83c\udffb \ub0b4\ubd80 \uc544\uc774\ud53c \uc8fc\uc18c \uace0\uc815 \/ Fixing the internal IP address<\/p>\n\n\n\n

\u2714\ufe0f \ub0b4\ubd80 \uc544\uc774\ud53c\uc8fc\uc18c\ub3c4 dhcp\ubc29\uc2dd\uc774\ub77c\uc11c \uc544\uc774\ud53c\uc8fc\uc18c\uac00 \ubc14\ub014 \uc218 \uc788\uae30\ub54c\ubb38\uc5d0 \uc8fc\uc18c\ub97c \uace0\uc815 \uc2dc\ucf1c\uc57c \ud569\ub2c8\ub2e4.
Since the internal IP address is also DHCP-based, the IP address can change, so the address must be fixed.<\/p>\n\n\n\n

\u2714\ufe0f \uc0ac\uc6a9\uc911\uc778 ip\uc8fc\uc18c \uc815\ubcf4 \uc911\uc5d0 \uace0\uc815\ud558\uae30 \uc6d0\ud558\ub294 \uc544\uc774\ud53c \uc8fc\uc18c\ub97c \uc6b0\uce21\uc758 \uccb4\ud06c \ubc15\uc2a4 \ud074\ub9ad\ud558\uace0 \ub4f1\ub85d \ubc84\ud2bc\uc744 \ub204\ub974\uba74 \uace0\uc815\uc544\uc774\ud53c\uc8fc\uc18c\ub85c \ub4f1\ub85d\ub429\ub2c8\ub2e4.
Among the IP address information in use, click the checkbox on the right of the IP address you want to fix and press the register button to register it as a fixed IP address.<\/p>\n\n\n\n

\"\"
\ub0b4\ubd80 \uc544\uc544\ud53c \uc8fc\uc18c \uace0\uc815 \/ Fixed internal IP address<\/figcaption><\/figure>\n\n\n\n

\ud83d\udc49\ud83c\udffb DDNS(Dynamic Domain Name System)\uc124\uc815\/settings<\/p>\n\n\n\n

\u2714\ufe0f \uacf5\uc778\uc544\uc774\ud53c \uc8fc\uc18c\uac00 \uc720\ub3d9\uc801\uc73c\ub85c \ubc14\ub00c\uc5b4\ub3c4 ddns\ub97c \uc0ac\uc6a9\ud558\uba74 \uc54c\uc544\uc11c ddns\uac00 \ub3c4\uba54\uc778\uacfc \uc544\uc774\ud53c \uc8fc\uc18c\ub97c \uc5f0\uacb0\ud574 \uc90d\ub2c8\ub2e4.
Even if the public IP address changes dynamically, if you use DDNS, DDNS will automatically connect the domain and IP address.<\/p>\n\n\n\n

\u2714\ufe0f \uc544\ub798\ub294 \uc81c\uac00 \ub4f1\ub85d\ud574\uc11c \uc0ac\uc6a9\uc911\uc774\uae30 \ub54c\ubb38\uc5d0 \uc0c1\ub2e8 DDNS\uc124\uc815 \ubd80\ubd84\uc774 \ube44\ud65c\uc131\ud654 \ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.
Below, the DDNS settings section at the top is disabled because I registered and am using it.<\/p>\n\n\n\n

\u2714\ufe0f \ud638\uc2a4\ud2b8\uc774\ub984\uc744 \ub4f1\ub85d\ud558\uc2dc\uba74 yourhostname.iptime.org\ud615\uc2dd\uc73c\ub85c \ub3c4\uba54\uc778\uc744 \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.
Once you register your hostname, you can create a domain in the format yourhostname.iptime.org.<\/p>\n\n\n\n

\u2714\ufe0f \ubaa8\ub4e0 \uc124\uc815\uc774 \uc644\ub8cc \ub418\uc5c8\uc73c\uba74 \uc6b0\uce21 \uc0c1\ub2e8\uc758 \uc800\uc7a5\uc744 \ud074\ub9ad\ud569\ub2c8\ub2e4.
Once all settings are complete, click Save in the upper right corner.<\/p>\n\n\n\n

\"\"
DDNS<\/figcaption><\/figure>\n\n\n\n

\ud83d\udc49\ud83c\udffb \ud14c\uc2a4\ud2b8 \/ test<\/p>\n\n\n\n

\u2714\ufe0f \uc5ec\ub7ec\ubd84\uc774 \uc6f9\uc11c\ubc84\uac00\uad6c\ucd95\ub418\uc5b4 \uc788\ub2e4\uba74 \ube0c\ub77c\uc6b0\uc800\uc5d0\uc11c http:\/\/yourhostname.iptime.org \ub97c \uc785\ub825\ud569\ub2c8\ub2e4.
If you have a web server set up, type http:\/\/yourhostname.iptime.org in your browser.<\/p>\n\n\n\n

\u2714\ufe0f \ubaa8\ub4e0 \uc124\uc815\uc774 \uc815\uc0c1\uc774\uba74 \uc5ec\ub7ec\ubd84\uc758 \uc6f9\ud398\uc774\uc9c0\uac00 \ube0c\ub77c\uc6b0\uc800\uc5d0 \ud45c\uc2dc\ub420 \uac83\uc785\ub2c8\ub2e4.
If all settings are correct, your webpage will be displayed in your browser.<\/p>\n","protected":false},"excerpt":{"rendered":"

\ud83d\udc49\ud83c\udffb \uc544\ub798\ub294 ip\uacf5\uc720\uae30\uc5d0\uc11c \ud3ec\ud2b8\ud3ec\uc6cc\ub529,\uc544\uc774\ud53c \uc8fc\uc18c\uace0\uc815 \uc124\uc815,ddns\uc124\uc815\uc5d0 \ub300\ud55c \ub0b4\uc6a9\uc785\ub2c8\ub2e4.Below is information about port forwarding, fixed IP address settings, and DDNS settings on an IP router. \ud83d\udc49\ud83c\udffb \uc544\ub798\ub294 \uad6d\uc0b0 \uacf5\uc720\uae30 \uc911 iptime\ubaa8\ub378\uc5d0\ub9cc \ud574\ub2f9\ud569\ub2c8\ub2e4.Below is only applicable to the iptime model among domestic routers. \ud83d\udc49\ud83c\udffb \uad6d\ub0b4 \ub2e4\ub978\uc81c\ud3fc\uc774\ub098 \ub2e4\ub978 \ub098\ub77c \uc81c\ud488\uc5d0\ub3c4 \ub3d9\uc77c\ud55c \uae30\ub2a5\uc774 \uc788\ub2e4\uace0 \uc54c\uace0 \uc788\uc2b5\ub2c8\ub2e4.I know that other […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3843","post","type-post","status-publish","format-standard","hentry","category-uncategorized","missing-thumbnail"],"_links":{"self":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/3843","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=3843"}],"version-history":[{"count":36,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/3843\/revisions"}],"predecessor-version":[{"id":3883,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/3843\/revisions\/3883"}],"wp:attachment":[{"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=3843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=3843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.freelifemakers.org\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=3843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}