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ProjectCCNA/Chapter5

chapter 5 - by sibichi

section 1

  • ip˜ ƒ„ดœ  : TCP/IPํ”„กœํ† ฝœ„ ‚ฌšฉํ•˜Š” ชจ“  žฅ„ ตฌ„ํ•˜ธฐ œ„ํ•ด„œ

  • ip†ŒŠ” 2„ˆ˜ 32žฆฌกœ ˜–ดžˆŒ -> •ฝ 42–ต 9ฒœฐœ -> ํ˜„žฌ ‚ฌšฉž ณ  คํ•˜ฉด ‚จ€ ip†Œ€ –งˆ —†Œ

    • ex) 0000 0000.0000 0000.0000 0000.0000 0000 ~ 1111 1111.1111 1111.1111 1111.1111 1111
      โ””-octet-โ”˜

    • ด ‹ญ„ˆ˜กœ ํ‘œํ˜„‹œ 0.0.0.0 ~ 255.255.255.255

section 2

  • šฐฆฌ€ ณดํ†ต “ฐŠ” šฐํ„— ฐฐ •ํ•ด• ํ•˜Š” ip†ŒŠ” 2ฐœ

    - ด”„ธํ„ฐํŽ˜ดŠค(šฐํ„—„œ ‚ด€ ปดํ“จํ„ฐฉํ–ฅ), ‹œฆฌ– ธํ„ฐํŽ˜ดŠค(ธํ„„ท ํ˜€ ‹คฅธ šฐํ„ฐ, ทธŸฌ‹ˆŒ isp—…ฒดฐฉํ–ฅ)

  • ด”„ธํ„ฐํŽ˜ดŠค˜ ip†ŒŠ” ณดํ†ต ทธ šฐํ„€ —ฐฒฐํ•˜Š” ‚ด€pc— ฐฐ •œ ip†Œ ฌถŒ˜ งจ •ž ฒˆํ˜ธ€—ฌ(ด ipŠ” ‹คฅธ pc™€ ˜ฉด •ˆœ‹ค)

  • ‹œฆฌ– ธํ„ฐํŽ˜ดŠค˜ ip†ŒŠ” ƒœ„„—ด˜ ip†Œ— งžถฐ ฐฐ •˜ณ  „œธŒ„งˆŠคํฌŠ” ™ํ•˜ฒŒ œ‹ค.

section 3

  • ip†ŒŠ” „คํŠธ›Œํฌ €„ ํ˜ธŠคํŠธ €„œกœ ตฌ„.

  • ํ•œ „คํŠธ›Œํฌ ˜—ญ—„œ ip†ŒŠ” „คํŠธ›Œํฌ €„€ ‹ค ฐ™•„•ํ•˜ณ , ํ˜ธŠคํŠธ €„€ ชจ‘ ‹ฌ•ํ•จ.

section 4

  • ip†Œ—„œ „คํฌ›Œํฌ €„ ํ˜ธŠคํŠธ €„„ ‚˜ˆ„Š” ฐฉฒ•„ •ฝ†ํ•œ ฒƒด ip†Œ˜ class(A~E)

    • ํดž˜ŠคA : 0xxx xxxx/xxxx xxxx.xxxx xxxx.xxxx xxxxํ˜•‹
      (0.0.0.0~127.255.255.255)
    • ฆ‰, 1.0.0.0~126.0.0.0€ ํดž˜ŠคA(1~126)

    • ํดž˜ŠคB : 10xx xxxx.xxxx xxxx/xxxx xxxx.xxxx xxxxํ˜•‹
      (128.0.0.0~191.255.255.255)
    • ฆ‰, 128.1.0.0~191.254.0.0€ ํดž˜ŠคB(128~191)

    • ํดž˜ŠคC : 110x xxxx.xxxx xxxx.xxxx xxxx/xxxx xxxxํ˜•‹
      (192.0.0.0~223.255.255.255)
    • ฆ‰, 192.0.1.0~233.255.254.0€ ํดž˜ŠคC(192~233)

    • /ํ‘œ‹œŠ” network€„ host€„„ ตฌ„ํ•œ ฒƒ.
    • „คํŠธ›Œํฌ ‚˜ํƒ€‚ • ํ˜ธŠคํŠธ €„„ 0œกœ ํ‘œํ˜„. ทธฆฌณ  ฐ ํดž˜Šค—„œ ํ‘œํ˜„ €Šฅํ•œฒƒ˜  œ ž‘€ ˆ˜™€  œ ํฐˆ˜Š” ‚ฌšฉถˆ€.
    • ํ˜ธŠคํŠธ€„ด ชจ‘0€ „คํŠธ›Œํฌ, 1€ ธŒกœ“œบŠคํŠธ ฒˆํ˜ธด€กœ ‚ฌšฉํ•˜€ •ŠŠ”‹ค. -> ฐ ํดž˜Šค—„œ ‚ฌšฉ€Šฅํ•œ ตœŒ€ ํ˜ธŠคํŠธˆ˜Š” ˆœ„‚ฐ-2ํ•ดค˜•ํ•จ.

section 5

  • ธฐณธ ฒŒดํŠธ›จด : ‚ด€ „คํŠธ›Œํฌ ฒ—–ด‚ •Œ ฐ–œกœ ํ†ตํ•˜Š” ฌธ -> šฐํ„˜ ด”„ธํ„ฐํŽ˜ดŠค

section 6

  • …ฆฌ  AND = only 1 and 1 : 1

  • „œธŒ„งˆŠคํฌ : –ด„ ip†Œ „คํŠธ›Œํฌ ํ™˜ฒฝ— งžฒŒ ‚˜ˆ„–ด ธฐ œ„ํ•ด„œ ”Œ›ŒŠ” ด„ˆ˜ กฐํ•ฉ -> ด„ ทธŒ€กœ ณดกฐกœ ‹ค‹œ ํ•œฒˆ ‚˜ˆ €‹ค.

  • „œธŒ„งˆŠคํฌกœ ‚˜ˆˆ „œธŒ„„˜ ํ†ต‹ € šฐํ„ ํ†ตํ•ด„œ ดฃจ–ด„‹ค.

section7

  • „คํŠธ›Œํฌ ‚˜ˆ  “ฐ€ •Š”„, ””ํดํŠธ „œธŒ„งˆŠคํฌ ‚ฌšฉํ•œ‹ค.

  • ฐ ํดž˜Šค„ ””ํดํŠธ „œธŒ„งˆŠคํฌ

    • ํดž˜ŠคA : 255.0.0.0
    • ํดž˜ŠคB : 255.255.0.0
    • ํดž˜ŠคC : 255.255.255.0

  • „œธŒ„งˆŠคํฌŠ” ip†Œ€ –ด””Œ€€ „คํŠธ›Œํฌ €„ดณ , –ด””Œ€€ ํ˜ธŠคํŠธ €„ธ€ ‚˜ํƒ€‚ดŠ” —ญํ• „ žˆ‹ค.

    • „คํŠธ›Œํฌ €„ = 1
    • ํ˜ธŠคํŠธ €„ = 0

  • œ„˜ ‚ฌ‹ค section6— ‚˜™”˜ …ฆฌ and ํ†ตํ•˜—ฌ „œธŒ„„คํŠธ›Œํฌ ตฌ„(=„œธŒ„คํŒ…)ํ•  ˆ˜ žˆ‹ค.

section 8

  • „œธŒ„งˆŠคํฌ งŒ“ค •Œ 1‚ฌด— 0ด “ค–ด™€„  •ˆœ‹ค.
    • ex) 1111 1111.1111 0000.1111 1111.0000 0000

  • section9 ดํ›„Š” „œธŒ„คํŒ…— Œ€ํ•œ ˜ˆ‹œ™€ „œธŒ„งˆŠคํฌ— Œ€ํ•œ žฌ •ฆฌ(...)

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