사설 아이피 문서 원본 보기

[목차]

== [[아이피]]의 사설 버전 ==
[[와이파이]], [[학교]] 공용 [[컴퓨터]] 등을 보면 아이피가 거의 사설 아이피인것을 확인 할 수 있다.
그 외에도 '''[[공유기]]를 사용하는''' 가정용 컴퓨터에서도 심심치 않게 볼 수 있다.
이 사설 IP는 국제 표준에 의해 특수목적으로 예약된 IP이므로 내부 충돌을 빼고는 충돌할 염려는 안해도 된다.

== [[사설 아이피]]를 사용하는 예시 ==
{{{#!html <!-- HTML generated using hilite.me --><div style="background: #ffffff; overflow:auto;width:auto;border:solid gray;border-width:.1em .1em .1em .8em;padding:.2em .6em;"><pre style="margin: 0; line-height: 125%"><span style="color: #FF0000; background-color: #FFAAAA">$</span> ifconfig
eth0      Link encap:Ethernet  HWaddr <span style="color: #4400EE; font-weight: bold">06</span>:ad:af:<span style="color: #0000DD; font-weight: bold">59</span>:a8:<span style="color: #0000DD; font-weight: bold">1</span>b  
          inet addr:<span style="color: #6600EE; font-weight: bold">10.0</span><span style="color: #333333">.</span><span style="color: #6600EE; font-weight: bold">106.2</span>  Bcast:<span style="color: #6600EE; font-weight: bold">10.0</span><span style="color: #333333">.</span><span style="color: #6600EE; font-weight: bold">255.255</span>  Mask:<span style="color: #6600EE; font-weight: bold">255.255</span><span style="color: #333333">.</span><span style="color: #6600EE; font-weight: bold">0.0</span>
          inet6 addr: fe80::<span style="color: #0000DD; font-weight: bold">4</span>ad:afff:fe59:a81b<span style="color: #333333">/</span><span style="color: #0000DD; font-weight: bold">64</span> Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:<span style="color: #0000DD; font-weight: bold">9001</span>  Metric:<span style="color: #0000DD; font-weight: bold">1</span>
          RX packets:<span style="color: #0000DD; font-weight: bold">3009</span> errors:<span style="color: #0000DD; font-weight: bold">0</span> dropped:<span style="color: #0000DD; font-weight: bold">0</span> overruns:<span style="color: #0000DD; font-weight: bold">0</span> frame:<span style="color: #0000DD; font-weight: bold">0</span>
          TX packets:<span style="color: #0000DD; font-weight: bold">1316</span> errors:<span style="color: #0000DD; font-weight: bold">0</span> dropped:<span style="color: #0000DD; font-weight: bold">0</span> overruns:<span style="color: #0000DD; font-weight: bold">0</span> carrier:<span style="color: #0000DD; font-weight: bold">0</span>
          collisions:<span style="color: #0000DD; font-weight: bold">0</span> txqueuelen:<span style="color: #0000DD; font-weight: bold">1000</span> 
          RX <span style="color: #007020">bytes</span>:<span style="color: #0000DD; font-weight: bold">2737803</span> (<span style="color: #6600EE; font-weight: bold">2.7</span> MB)  TX <span style="color: #007020">bytes</span>:<span style="color: #0000DD; font-weight: bold">189663</span> (<span style="color: #6600EE; font-weight: bold">189.6</span> KB)

lo        Link encap:Local Loopback  
          inet addr:<span style="color: #6600EE; font-weight: bold">127.0</span><span style="color: #333333">.</span><span style="color: #6600EE; font-weight: bold">0.1</span>  Mask:<span style="color: #6600EE; font-weight: bold">255.0</span><span style="color: #333333">.</span><span style="color: #6600EE; font-weight: bold">0.0</span>
          inet6 addr: ::<span style="color: #0000DD; font-weight: bold">1</span><span style="color: #333333">/</span><span style="color: #0000DD; font-weight: bold">128</span> Scope:Host
          UP LOOPBACK RUNNING  MTU:<span style="color: #0000DD; font-weight: bold">65536</span>  Metric:<span style="color: #0000DD; font-weight: bold">1</span>
          RX packets:<span style="color: #0000DD; font-weight: bold">0</span> errors:<span style="color: #0000DD; font-weight: bold">0</span> dropped:<span style="color: #0000DD; font-weight: bold">0</span> overruns:<span style="color: #0000DD; font-weight: bold">0</span> frame:<span style="color: #0000DD; font-weight: bold">0</span>
          TX packets:<span style="color: #0000DD; font-weight: bold">0</span> errors:<span style="color: #0000DD; font-weight: bold">0</span> dropped:<span style="color: #0000DD; font-weight: bold">0</span> overruns:<span style="color: #0000DD; font-weight: bold">0</span> carrier:<span style="color: #0000DD; font-weight: bold">0</span>
          collisions:<span style="color: #0000DD; font-weight: bold">0</span> txqueuelen:<span style="color: #0000DD; font-weight: bold">0</span> 
          RX <span style="color: #007020">bytes</span>:<span style="color: #0000DD; font-weight: bold">0</span> (<span style="color: #6600EE; font-weight: bold">0.0</span> B)  TX <span style="color: #007020">bytes</span>:<span style="color: #0000DD; font-weight: bold">0</span> (<span style="color: #6600EE; font-weight: bold">0.0</span> B)
<span style="color: #FF0000; background-color: #FFAAAA">$</span>  
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}}}
{{{#!html <!-- HTML generated using hilite.me --><div style="background: #ffffff; overflow:auto;width:auto;border:solid gray;border-width:.1em .1em .1em .8em;padding:.2em .6em;"><pre style="margin: 0; line-height: 125%">C:\Users\Administrator<span style="color: #333333">></span>ipconfig

Windows IP <span style="color: #FF0000; background-color: #FFAAAA">구성</span>

<span style="color: #FF0000; background-color: #FFAAAA">무선</span> LAN <span style="color: #FF0000; background-color: #FFAAAA">어댑터</span> Wi<span style="color: #333333">-</span>Fi:

   <span style="color: #FF0000; background-color: #FFAAAA">연결별</span> DNS <span style="color: #FF0000; background-color: #FFAAAA">접미사</span><span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> :
   <span style="color: #FF0000; background-color: #FFAAAA">링크</span><span style="color: #333333">-</span><span style="color: #FF0000; background-color: #FFAAAA">로컬</span> IPv6 <span style="color: #FF0000; background-color: #FFAAAA">주소</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> : fe80::d21:<span style="color: #0000DD; font-weight: bold">54</span>c8:<span style="color: #0000DD; font-weight: bold">1412</span>:f5c<span style="color: #333333">%</span><span style="color: #0000DD; font-weight: bold">3</span>
   IPv4 <span style="color: #FF0000; background-color: #FFAAAA">주소</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> : <span style="color: #6600EE; font-weight: bold">192.168</span><span style="color: #333333">.</span><span style="color: #6600EE; font-weight: bold">10.3</span>
   <span style="color: #FF0000; background-color: #FFAAAA">서브넷</span> <span style="color: #FF0000; background-color: #FFAAAA">마스크</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> : <span style="color: #6600EE; font-weight: bold">255.255</span><span style="color: #333333">.</span><span style="color: #6600EE; font-weight: bold">255.0</span>
   <span style="color: #FF0000; background-color: #FFAAAA">기본</span> <span style="color: #FF0000; background-color: #FFAAAA">게이트웨이</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> <span style="color: #333333">.</span> : <span style="color: #6600EE; font-weight: bold">192.168</span><span style="color: #333333">.</span><span style="color: #6600EE; font-weight: bold">10.1</span>
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~~ 어디서 많이 본것 같은데 ~~ 리눅스와 윈도우의 IP 조회 화면이다.
둘 다 사설 IP를 이용한다.

== 사설 IP 대역 ==
10.0.0.0 ~ 10.255.255.255
172.16.0.0 ~ 172.31.255.255
192.168.0.0 ~ 192.168.255.255

[[무선공유기]]와 같은 기기의 관리자 페이지 192.168.*.* (192.168.1.1, 192.168.10.1 등) 아이피가 익숙하다.
== 장점 ==
'''__{{{+3 대표적인 이유중 하나가 [[IPv4]]의 고갈을 지연시킬 수 있다.}}}__'''
또 다른 이유라면 [[인트라넷]] 참조

== 단점 ==
외부 접근이 어렵다. 뭐 하마치, VPN, 포트포워딩이나 DMZ등의 방법이 있지만
하마치는 별도의 프로그램을 설치해야 하고, 인원제한도 있고,
VPN은 공인 IP를 뿌려주는 VPN을 사야하고[* 웬만한 무료 VPN은 공인IP 안뿌려준다.],
포트포워딩이나 DMZ은 가장 쉬운 대안이지만 [[https://namu.wiki/w/%ED%8C%8C%EC%9D%BC:%EA%B3%B5%EC%9C%A0%EA%B8%B0%EC%97%90%EC%82%AC%EC%84%A4IP.png|이렇게]] 되어 있으면... [[더이상의 자세한 설명은 생략한다]]

[[분류:인터넷]]