gioi thieu ip vesion 4

Upload: lvdong

Post on 31-May-2018

219 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/14/2019 Gioi thieu Ip vesion 4

    1/41

    DFKLSY*LLWKLXFKXQJ

    1K} FKQJ WD ~ ELW ,QWHUQHW O P-W PQJ P\ WQK WRQ FX GR KQJQJKQPQJP\WQKWNKSPLQ|LQLOLWRQzQ.KFYLFFKWFKFWKHRFFFSQ-LKWOLzQWQKTXFWFDP-WPQJYLQWK{QJQK}PQJWKRLFKQJKQPQJ,QWHUQHWWFKFFKFP-WFSFFPQJP\WQKGQKG WRNKLQLYR,QWHUQHW~XEQK~QJYLQKDX'RFFKWFKFQK}Y\QzQWUzQ,QWHUQHWFFXWUF~DFKFFK~QK~DFK~FELWWURQJNKLFFK~QK~DFK~LYLPQJYLQWK{QJOL~|QJLQK|QQKLX

    wLYLPQJYLQWK{QJQK}PQJWKRLFKQJKQNKFKKQJFFYQJNKFQKDXKRQWRQF WKF FQJV ~LQWKRL SKyQELW YLQKDXEQJ PYQJPWQKKD\PTXFWwLYLPQJ,QWHUQHWGRFFKWFKFFKFP-WFSQzQPLP-WNKFKKQJKD\P-WP\FK+RVWKRF5RXWHU~XFP-W

    ~DFK,QWHUQHWGX\QKWPNK{QJ~}FSKSWUQJYLEWNDL'RY\P~DFKWUzQ,QWHUQHWWKFVOP-WWLQJX\zQ

    +QJFKFWULXP\FKWUzQKQJWUxPQJKQPQJw~DFKNK{QJ~}FWUQJQKDXFQSKLFFXWUF~DFK~FELWTXQOWKQJQKWY P-W7 FKF FD ,QWHUQHW JL O 7UXQJ WyP WK{QJ WLQ PQJ ,QWHUQHW 1HWZRUN,QIRUPDWLRQ&HQWHU1,&FKWUSKyQSKL1,&FKSKyQ~DFKPQJ1HW,'FQ~DFKP\FKWUzQPQJ~+RVW,'GRFF7FKFTXQO,QWHUQHWFDWQJTXFJLDP-WWSKyQSKL7URQJWKFW~FWK~QKWX\QURXWLQJWUzQPQJ,QWHUQHWQJRL~DFK,3FQFQ~QWzQULzQJFDFFP\FK+RVW'RPDLQ1DPH&FSKQWLSWKHRFKQJWDK\QJKLzQFXFXWUF~FELWFD

    ~DFK,QWHUQHW

    ,&XWUFDFK,3&KLWLWD7KyQKSKQYyKQKG}QJFDxDFK,3

    wDFK,3~DQJ~}FVGQJKLQWL,3YFELWFKLDWKQK2FWHWPL2FWHWFELWW}|QJ~}|QJE\WHFFK~P~XWWULTXDSKLEWFKR~QEWFF2FWHWWFKELWQKDXEQJGXFKPEDRJPFWKQKSKQFKQK

    class

    bitNet ID Host ID

    %LW%LWQKQGQJOS&ODVVELWwDFKFDPQJ1HW,'wDFKFDP\FK+RVW,'

  • 8/14/2019 Gioi thieu Ip vesion 4

    2/41

    *KLFK7lQOqiDFKPt\FKQKoQJWKFWNKmQJFKFPt\FKPq

    W~WFrFtFPt\FRQ:RUNVWDWLRQFtFFQJWUX\QKSYYpXF{QFpDFK

    %LWQKQGQJOS&ODVVELW~SKyQELW~DFKOSQRwDFK,QWHUQHWELXKLQGQJELWQKSKyQ

    [\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\KRF9G

    E L W Q K Q G Q J 2 F W H W 2 F W H W 2 F W H W 2 F W H W

    wDFK,QWHUQHWELXKLQGQJWKSSKyQ[[[[[[[[[[[[[OVWKSSKyQW~Q

    9G'QJYLW~\~FD~DFK,3OFRQVWURQJWQJ2FWHW9G~DFK,3WK}QJ WK\ WUzQ WKF W F WK O QK}QJ GQJ ~\ ~ O

    E&|FOSxDFK,3

    wDFK,3FKLDUDOS$%&'(+LQWL~GQJKWOS$%YJQKWOS&FQOS'Y(7FKFLQWHUQHW~DQJ~GQKFKRPF~FKNKFNK{QJSKyQQzQFKQJWDFKQJKLzQFXOS~X

  • 8/14/2019 Gioi thieu Ip vesion 4

    3/41

    16 24

    class a :

    0

    class b

    1 0

    class c

    1 1 0

    net id host id

    net id host id

    net id host id

    132

    8

    octet 1 octet 4octet 3octet 2

    8 16 24 32

    1 1 1 0

    Class d

    8 16 2432

    1 1 1 1 0

    class e

    4XDFXWUFFFOS~DFK,3FKQJWDFQKQ[WVDX

    %LWQKQGQJOQKQJELW~XWLzQFDOS$OFDOS%OFDOS&O

  • 8/14/2019 Gioi thieu Ip vesion 4

    4/41

    /S'FELW~XWLzQ~QKQGQJOFQOS(FEW~XWLzQ~QKQGQJO

    wDFKOS$wDFKPQJWY~DFKP\FKWUzQWQJPQJQKLXwDFKOS%wDFKPQJYDSKLY~DFKP\FKWUzQWQJPQJ

    YDSKLwDFKOS&wDFKPQJQKLX~DFKP\FKWUzQWQJPQJW

    i D F K 9 Q J p D F K 6 P u Q J W L p D 6 P t \ F K W L p D

    O S O W K X \ W V G Q J W U l Q W Q J P u Q J

    $ W ~Q % W~Q &W ~Q 'W~Q.K{QJSKyQ

    (W~Q.K{QJSKyQ

    i D F K 9 Q J p D F K % L W Q K Q G u Q J 6 E L W G Q J p

    O S V G Q J 3 K k Q F K R P u Q J

    $ W~Q % W~Q&W ~Q '(

    1K}Y\QXFKQJWDWK\~DFK,3FQKPVFFKQKDXEQJGXFKPQXWK\QKPVWKQKWQKK|QELW~DFKQ\OS$QPWURQJNKRQJ~QELW~DFKQ\OS%YW~QELW~DFKQ\OS&

    ,LDFKPQJFRQFD,QWHUQHW,3VXEQHWWLQJ

    D1JX\tQQKsQ1K}~QzXWUzQ~DFKWUzQ,QWHUQHWWKFVOP-WWLQJX\zQP-WPQJ

    NKLJLDQKS,QWHUQHW~}F7UXQJWyPWK{QJWLQPQJ,QWHUQHW1,&SKyQFKRP-WV~DFKYD~GQJYL\zXFXOF~VDXQ\QXPQJSKWWULQWKzPOLSKL[LQ1,&WKzP~O~LXNK{QJWKXQWLQFKRFFQKNKDLWKFPQJ

    +|QQDFFOS~DFKFD,QWHUQHWNK{QJSKLKRQWRQSKKSYL\zXFXWKFW~DFKOS%FKQJKQPLP-W~DFKPQJFWKFSFKR

  • 8/14/2019 Gioi thieu Ip vesion 4

    5/41

    P\FK7KFWFPQJQKFKFYLFKFP\FKWKVOQJSKUWQKLX~DFKFQOLPNK{QJDLGQJ~}FwNKFSKFYQ~Q\YWQGQJWL~D~DFK~}F1,&SKyQEW~XWQxPQJ}LWDQJK~QwDFKPQJFRQ

    1K}Y\SKyQ~DFKPQJFRQOPU-QJ~DFKFKRQKLXPQJWUzQF|VPWpDFKPuQJP1,&SKyQFKRSKKSYLVO}QJWKFWP\FK FWUzQWQJPQJ

    %3KwvQJSK|SSKsQFKLDxDFKP}QJFRQ&KLWLW

    7U}FNKLQJKLzQFXSKQQ\FKQJWDFQSKLKLXTXDP-WVNKLQLPOLzQTXDQWLYLFSKyQ~DFKFFPQJFRQ

    'HIDXOW0DVN*LWUWUQ~DFKPQJ~}F~QKQJKDWU}F

    FKRWQJOS~DFK$%&7KFFKWOJLWUWKSSKyQFDRQKWNKLWWFELW~XEQJWURQJFF2FWHWGQKFKR~DFKPQJ1HW,'

    'HIDXOW0DVN /S$ /S% /S&

    6XEQHW0DVNJLWUWUQFDWQJPQJFRQ6XEQHW0DVNONWKSFD'HIDXOW0DVNYLJLWUWKSSKyQFDRQKWFDFFELWO\WFF2FWHWFD~DFKP\FKVDQJSKQ~DFKPQJ~WR

    ~DFKPQJFRQ6XEQHW0DVNEDRJLFQJ~LNPYL~DFKPQJWLzXFKXQ ~FKRQJ}L~FELW~DFKPQJWLzXFKXQQ\GQJFFKR P\ FK KD\FKLDUDWKQKFFPQJFRQ0WNKFQFQJLS 5RXWHUWURQJ YLF~QKWX\QFX-FJL

    1JX\lQWyFFKXQJ

    /\EWP-WVELWFDSKQ~DFKP\FK~WR~DFKPQJFRQ/\~LEDRQKLzXELWSKWKX-FYRVPQJFRQFQWKLW6XEQHWPDVN

    PQKNKDLWKFPQJTX\W~QKVWRUD

  • 8/14/2019 Gioi thieu Ip vesion 4

    6/41

    &XWUFDFKFD,QWHUQHWDFK,31 G r M * ( H e S G H T B G T M F

    1 G r M * ( H e S G H T B G T M F

    1K} FKQJ WD ~ ELW ,QWHUQHW O P-W PQJ P\ WQK WRQ FX GR KQJQJKQPQJP\WQKWNKSPLQ|LQLOLWRQzQ.KFYLFFKWFKFWKHRFFFSQ-LKWOLzQWQKTXFWFDP-WPQJYLQWK{QJQK}PQJWKRLFKQJKQPQJ,QWHUQHWWFKFFKFP-WFSFFPQJP\WQKGQKGWRNKLQLYR,QWHUQHW~XEQK~QJYLQKDX'RFFKWFKFQK}Y\QzQWUzQ,QWHUQHWFFXWUF~DFKFFK~QK~DFK~FELWWURQJNKLFFK~QK~DFK~LYLPQJYLQWK{QJOL~|QJLQK|QQKLX

    wLYLPQJYLQWK{QJQK}PQJWKRLFKQJKQNKFKKQJFFYQJNKFQKDXKRQWRQF WKF FQJV ~LQWKRL SKyQELW YLQKDXEQJ P

    YQJPWQKKD\PTXFWwLYLPQJ,QWHUQHWGRFFKWFKFFKFP-WFSQzQPLP-WNKFKKQJKD\P-WP\FK+RVWKRF5RXWHU~XFP-W~DFKLQWHUQHWGX\QKWPNK{QJ~}FSKSWUQJYLEWNDL'RY\P~DFKWUzQ,QWHUQHWWKFVOP-WWLQJX\zQ

    +QJFKFWULXP\FKWUzQKQJWUxPQJKQPQJw~DFKNK{QJ~}FWUQJQKDXFQSKLFFXWUF~DFK~FELWTXQOWKQJQKWY P-W7 FKF FD ,QWHUQHW JL O 7UXQJ WyP WK{QJ WLQ PQJ ,QWHUQHW 1HWZRUN,QIRUPDWLRQ&HQWHU1,&FKWUSKyQSKL1,&FKSKyQ~DFKPQJ1HW,'FQ~DFKP\FKWUzQPQJ~+RVW,'GRFF7FKFTXQO,QWHUQHWFDWQJTXFJLDP-WWSKyQSKL7URQJWKFW~FWK~QKWX\QURXWLQJ

    WUzQPQJ,QWHUQHWQJRL~DFK,3FQFQ~QWzQULzQJFDFFP\FK+RVW'RPDLQ1DPH&FSKQWLSWKHRFKQJWDK\QJKLzQFXFXWUF~FELWFD~DFK,QWHUQHW

    O G r M * * $ u T S Q B g @ B G * 1 O G r M * * $ u T S Q B g @ B G * 1

    D7KyQKSKQYyKQKG}QJFDxDFK,3wDFK,3~DQJ~}FVGQJKLQWL,3YFELWFKLDWKQK2FWHW

    PL2FWHWFELWW}|QJ~}|QJE\WHFFK~P~XWWULTXDSKLEWFKR~QEWFF2FWHWWFKELWQKDXEQJGXFKPEDRJPFWKQKSKQFKQK

    class

    bitNet ID Host ID

    %LW%LWQKQGQJOS&ODVVELWwDFKFDPQJ1HW,'wDFKFDP\FK+RVW,'

  • 8/14/2019 Gioi thieu Ip vesion 4

    7/41

    *KLFK7lQOqiDFKPt\FKQKoQJWKFWNKmQJFKFPt\FKPqW~WFrFtFPt\FRQ:RUNVWDWLRQFtFFQJWUX\QKSYYpXF{QFpDFK

    %LWQKQGQJOS&ODVVELW~SKyQELW~DFKOSQRwDFK,QWHUQHWELXKLQGQJELWQKSKyQ

    [\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\

    [\KRF9G

    E L W Q K Q G Q J 2 F W H W 2 F W H W 2 F W H W 2 F W H W

    wDFK,QWHUQHWELXKLQGQJWKSSKyQ[[[[[[[[[[[[[OVWKSSKyQW~Q

    9G'QJYLW~\~FD~DFK,3OFRQVWURQJWQJ2FWHW9G~DFK,3

    WK}QJ WK\ WUzQ WKF W F WK O QK}QJ GQJ ~\ ~ O

    E&|FOSxDFK,3

    wDFK,3FKLDUDOS$%&'(+LQWL~GQJKWOS$%YJQKW OS & FQ OS 'Y ( 7 FKF LQWHUQHW ~DQJ ~ GQK FKR PF ~FK NKFNK{QJSKyQQzQFKQJWDFKQJKLzQFXOS~X

  • 8/14/2019 Gioi thieu Ip vesion 4

    8/41

    16 24

    class a :

    0

    class b

    1 0

    class c

    1 1 0

    net id host id

    net id host id

    net id host id

    1 328

    octet 1 octet 4octet 3octet 2

    8 16 24 32

    1 1 1 0

    Class d

    8 16 24 32

    1 1 1 1 0

    class e

    4XDFXWUFFFOS~DFK,3FKQJWDFQKQ[WVDX

    %LWQKQGQJOQKQJELW~XWLzQFDOS$OFDOS%OFDOS&O

  • 8/14/2019 Gioi thieu Ip vesion 4

    9/41

    /S'FELW~XWLzQ~QKQGQJOFQOS(FEW~XWLzQ~QKQGQJO

    wDFKOS$wDFKPQJWY~DFKP\FKWUzQWQJPQJQKLXwDFKOS%wDFKPQJYDSKLY~DFKP\FKWUzQWQJPQJ

    YDSKL

    wDFKOS&wDFKPQJQKLX~DFKP\FKWUzQWQJPQJW

    i D F K 9 Q J p D F K 6 P u Q J W L p D 6 P t \ F K W L p D

    O S O W K X \ W V G Q J W U l Q W Q J P u Q J

    $ W ~Q % W~Q &W ~Q 'W~Q.K{QJSKyQ

    (W~Q.K{QJSKyQ

    i D F K 9 Q J p D F K % L W Q K Q G u Q J 6 E L W G Q J p

    O S V G Q J 3 K k Q F K R P u Q J

    $ W~Q % W~Q&W ~Q '(

    1K}Y\QXFKQJWDWK\~DFK,3FQKPVFFKQKDXEQJGXFKPQXWK\QKPVWKQKWQKK|QELW~DFKQ\OS$QPWURQJNKRQJ~QELW~DFKQ\OS%YW~QELW~DFKQ\OS&

    * K L Q K i D F K W K F W N K m Q J S K k Q W U R Q J W U o Q J K S W ~ W F r F t F E L W W U R Q J P W K D \ Q K L X

    2 F W H W V G Q J F K R p D F K P u Q J K D \ p D F K P t \ F K p X E v Q J K D \ p X E v Q J i L X Q q \

    p Q J F K R W ~ W F r F t F O S p D F K

    H g @ B G - O " H g @ B G - O "

    7QJTXWFKXQJ

  • 8/14/2019 Gioi thieu Ip vesion 4

    10/41

    %LWWKQKWOELWQKQGQJOS$ELWFQOLWURQJ2FWHWWKQKWGQKFKR~DFKPQJ2FWHWFQOLFELWGQKFKR~DFKFDP\&K

    &ODVV$2FWHW 2FWHW 2FWHW 2FWHW

    8 16 24

    0

    net id host id

    132

    PQJP\FKWUzQP-WPQJ

    DqDFKP}QJ1HW,'

    .KrQjQJSKkQpDFK

    .KL~PVELWFKQJWD~PWWULTXDSKLQK}QJNKLWQKJLWUWKSSKyQQ FDELWOLWQKWSKLTXDWULEW~XWELW2FWHWWKQKWGQKFKR~DFKPQJELWOELWQKQGQJOS$ELWFQOLWELW~QELWGQKFKR~DFKPQJ 1K}QJWUzQWKFW~DFKNKLWWFFFELWEQJKRFEQJ~XNK{QJSKyQFKRPQJ.KLJLWUFFELW~XEQJJLWUWKSSKyQONK{QJFQJKDFQ~DFKONKLFFELW~XEQJGQJ~WK{QJ

    ERQ-LE-QzQWUzQWKFWFQOLPQJ

    2FWHW

    0

    net id

    7 6 . . .. . . . . ..0 bit

    &FKWQK~DFKPQJOS$

    6WKW%LWQWQKWSKLTXDWUL*LWUQKSKyQKD\FD%LW[[[[[[[*LWUWKSSKyQW}|QJQJNKLJLWUELWVO3

    *LWUWKSSKyQW}|QJQJNKLJLWUELWNK{QJWQK*LWUWKSSKyQOQQKWNKLJLWUFDELW~XEQJO

    6DX~y\OFFKWQKWUQYQJLWUFDWWFFF%LW

  • 8/14/2019 Gioi thieu Ip vesion 4

    11/41

    *LWUW}|QJQJYLWKWELWQ1HW,'

    *DWUQ

    wDFKPQJ

    .K{QJSKyQ

  • 8/14/2019 Gioi thieu Ip vesion 4

    12/41

  • 8/14/2019 Gioi thieu Ip vesion 4

    13/41

  • 8/14/2019 Gioi thieu Ip vesion 4

    14/41

  • 8/14/2019 Gioi thieu Ip vesion 4

    15/41

    'QJQ-LE-

    1 K o Y \ N K r Q j Q J S K k Q p D F K F D O S $ F K R P u Q J

    % L X K L X p D F K W U l Q W K F W

    7 p Q

    EqDFKFDF|FP|\FKWUtQPWP}QJ

    .KrQjQJSKkQpDFK

    %D2FWHWVDXJPELW~}FWQKWELW~QELWGQKFKR~DFKP\FKWUzQWQJPQJ

    2FWHW 2FWHW 2FWHW

    host id

    1 24

    %LW

    9LFFKWQKQK}WUzQ~~}FWQJVP\FKWUzQP-WPQJWDF

    *LWUW}|QJQJYLELWQwDFK Q P\FK

    2FWHW2FWHW2FWHW

  • 8/14/2019 Gioi thieu Ip vesion 4

    16/41

    wDFKNKLFFELW~XEQJKD\EQJEUD7UzQWKFWFQOL 1KoY\NKrQjQJSKkQpDFKFKRPt\FK

    %LXKLQpDFKWUlQWKFW

    2FWHW 2FWHW 2FWHW

    host id

    1 24

    2FWHW

    %LW

    *LWUW}|QJQJYLWKWELWQ

    *DWU Q wDFKP\FK

  • 8/14/2019 Gioi thieu Ip vesion 4

    17/41

    1KoY\JLtWUWKSSKkQ2FWHWWQKWWL

    2FWHW

    %LW

    *LWUW}|QJQJYLWKWELWQ

    *DWU Q wDFKP\FK

    1KoY\JLtWUWKSSKkQ2FWHWWQKWWL

    2FWHW

  • 8/14/2019 Gioi thieu Ip vesion 4

    18/41

    %LW

    *LWUW}|QJQJYLWKWELWQ

    *DWU Q wDFKP\FK

    .K{QJSKyQ .K{QJSKyQ

    1KoY\JLtWUWKSSKkQ2FWHWWQKWWL

    7QJTXWOLWL~DFKFDP-WPQJNKLOQO}WWKD\~LFFJLWUFDFF2FWHWWDVFNKQxQJWKD\~LPFFFRQVNK{QJWUQJOSQKDX&RPELQDWLRQVFQJKLO~DFKFDP\FKWUzQPQJQK}QJWKFWSKyQFKO

    [[%LXKLQWUzQWKFWOEDVWKSSKyQWURQJ2FWHWFFKQKDXGX

    7pQ

    .WOXQiDFKOS$FWKSKkQFKRPuQJYqPLPWPuQJFPt\FK1LFtFKNKtFpDFKWKFWV7pQ

    9G0WpDFKp{\pFDOS$

  • 8/14/2019 Gioi thieu Ip vesion 4

    19/41

    wDFKwDFKP\PQJFK

    * * g @ B G - O # * * g @ B G - O #

    7QJTXWFKXQJ

    ELW~XWLzQ~QKQGQJOS%OYELWFQOLWURQJ2FWHW~XWLzQGQKFKR~DFK

    PQJ2FWHWFQOLJPELWGQKFKR~DFKP\&K

    class b

    1 0

    net id host id

    1 8 16 24 32Octet1 Octet2 Octet3 Octet4

    PuQJPt\FKWUlQPWPuQJ

    DqDFKP}QJ

    .KrQjQJSKkQpDFK

    2FWHW2FWHW

    1 0

    net id

    1 8 16

    +DL2FWHW~XWLzQFELW~SKyQFKR~DFKPQJELWELWYELWNWWULVDQJFJLWUOQO}WOYGQJ~QKQGQJ~DFKOS%1K}Y\FQOLELW~FKR1HW,'~DFKPQJ

  • 8/14/2019 Gioi thieu Ip vesion 4

    20/41

    net id

    13 7 0

    Octet1 Octet2

    7KHRFFKWQKQK}FD~DFKPQJ/S$WDF

    *LWUQ wDFKPQJ

    .K{QJSKyQ

    .K{QJSKyQ

    2FWHW2FWHW

    7}|QJWQK}~DFK/S$FFELW~XEQJYFFELW~XEQJ~}FEUDQzQWKFWJLWUWKSSKyQFKW~QFQJKDSKyQ~}FFKRPuQJ

    %LXKLQWUlQWKFW

    %LXKLQ~DFKWUzQWKFWWKKLQVWKSSKyQWURQJ2FWHWFFKQKDXEQJGXFKP&FKWQKVWKSSKyQFKRWQJ2FWHWP-W

    2FWHW

    %LW

  • 8/14/2019 Gioi thieu Ip vesion 4

    21/41

    E L W Q K Q G Q J

    *LWUW}|QJQJYLWKWELWQ1HW,'

    *DWU Q wDFKPQJ

    wDFKPQJFD/S$W~QNK{QJSKyQ1K}Y\~DFKPQJFD/S%2FWHWWKQKWVWFKR~Q

    1KoY\JLtWUWKSSKkQFD2FWHWWpQ

    2FWHW

    %LW

    *LWUW}|QJQJYLWKWELWQ1HW,'

    *LWUQ

    wDFKPQJ

    .K{QJSKyQ

  • 8/14/2019 Gioi thieu Ip vesion 4

    22/41

    .K{QJSKyQ

    1KoY\JLtWUWKSSKkQFD2FWHWWpQ

    1K}Y\wDFKPQJOS%ELXKLQWUzQWKFWJP2FWHW7FKRpQ

    FQJKDSKyQ~}FFKRPuQJ

    EqDFKF|FP|\FKWUtQPWP}QJ

    .KrQjQJSKkQpDFK

    2FWHWYJPELW~GQKFKR~DFKFDFFP\FKWUzQWQJPQJ

    2FWHW2FWHW%LW

    %LW

    +RVW,'

    *DWU%LW*LWU

    Q

    wDFK

  • 8/14/2019 Gioi thieu Ip vesion 4

    23/41

    2FWHW2FWHW

    wDFKFDFFELWEQJYEQJEUD.KQxQJWKFWFQOLpDFK ~SKyQFKRFFP\FKWUzQP-WPQJ

    %LXKLQpDFKWUlQWKFW

    2FWHW

    %LW

    *LWUW}|QJQJYLWKWELWQ

    *DWU Q wDFKP\FK

  • 8/14/2019 Gioi thieu Ip vesion 4

    24/41

    1KoY\JLtWUWKSSKkQFD2FWHWWpQ

    2FWHW

    %LW

    *LWUW}|QJQJYLWKWELWQ

    *DWU Q wDFKP\FK

    .K{QJSKyQ

    .K{QJSKyQ

    1KoY\JLtWUWKSSKkQFD2FWHWWpQ

    %LXKLQ~DFKP\FKWUzQWKFWFD/S%O

    7pQ

  • 8/14/2019 Gioi thieu Ip vesion 4

    25/41

    .WOXQiDFK/S%FWKSKkQFKRPuQJYqPLPuQJFpQPt\FK1LFtFKNKtFpDFKSKkQWURQJWKFWV7pQ9G0WpDFKp{\pFDOS%

    wDFKwDFK0QJ0\FK

    * * * g @ B G - O $ * * * g @ B G - O $

    7QJTXWFKXQJ

    ELW~XWLzQ~QKQGQJOS&OELWFQOLWURQJ2FWHW~XGQKFKR~DFKPQJ2FWHWFXLFQJFELWGQKFKR~DFKP\FK

    class c

    1 1 0

    net id host id

    1 24 328 16octet 1 octet 4octet 3octet 2

    PuQJPt\FKWUlQPWPuQJ

    DqDFKP}QJ

    .KrQjQJSKkQpDFK

    ELWFQOLFD2FWHW~XGQKFKR~DFKPQJ

    *LWUW}|QJQJYLELWQJLWUwDFK Q PQJ

  • 8/14/2019 Gioi thieu Ip vesion 4

    26/41

    2FWHW2FWHW2FWHW

    &FELW~XEQJKD\EQJNK{QJSKyQQzQNKQxQJSKyQ~DFKFKRPQJOS&OKRFEQJ

    %LXKLQWUlQWKFW

    2FWHW

    %LW

    %LW

    % L W Q K Q G Q J

    *LWUW}|QJQJYLWKWELWQ1HW,'

    *DWU Q wDFKPQJ

  • 8/14/2019 Gioi thieu Ip vesion 4

    27/41

    1KoY\JLtWUWKSSKkQFD2FWHWWpQ

    2FWHW

    %LW

    *LWUW}|QJQJYL

    WKWELWQ1HW,' *DWU Q wDFKPQJ

    1KoY\JLtWUWKSSKkQFD2FWHWWpQ

    2FWHW

    %LW

    *LWUW}|QJQJYLWKWELWQ1HW,'

    *DWU Q wDFKPQJ

  • 8/14/2019 Gioi thieu Ip vesion 4

    28/41

    .K{QJSKyQ

    .K{QJSKyQ

    1KoY\JLtWUWKSSKkQFD2FWHWWpQ

    .WOXQiDFKGqQKFKRPuQJFDOS&FNKrQjQJSKkQFKRPuQJQLFtFKNKtFWUlQWKFWV7pQ

    ExDFKP|\FKWUtQWQJP}QJ

    .KrQjQJSKkQpDFK

    2FWHWFELW~SKyQ~DFKFKRFFP\FKWUzQP-WPQJ

    2FWHW

    %LW

    *LWUW}|QJQJYLWKWELWQ

    *DWU Q wDFKP\FK

    .K{QJSKyQ

  • 8/14/2019 Gioi thieu Ip vesion 4

    29/41

    .K{QJSKyQ

    1KoY\JLtWUWKSSKkQFD2FWHWWpQ

    1K}Y\NKQxQJFKRP\FKWUzQWQJPQJFD~DFKOS&OKD\

    %LXKLQWUlQWKFWl7pQ

    .WOXQiDFKOS&FWKSKkQFKRPuQJYqPLPWPuQJFPt\FK1LFtFKNKtFV

    7pQ

    9GPWpDFK,QWHUQHWOS&p{\p

    wDFKPQJwDFKP\FK

    9G7UXQJWyPWK{QJWLQPQJ,QWHUQHWYQJ&KyX7KLEQKG}|QJ$31,& SKyQ FKR 9'& ~D FK FD OS & F WK SKyQ FKR PQJ WFKR~Q1KPVWKQKWOFKRELW~y\OQKQJNKL~DFKOS&

    wDFK~\~FDP-WNKL~DFKSKLOFKQJWD~}FVGQJWUQYQRFWHWFXLFQJFQJKDO~}F~DFKP\FKY~XFXLWUzQP-WPQJ9GPQJVF~DFK~XFXLW~Q1K}Y\WQJF-QJ9'&F[~DFKO WKX\W ~ SKyQ FKR FF P\ FK Y ~X FXL WUzQ PQJ YY

    1K}Y\~DFKPQJOF~QKFKQJWDFK~}FTX\QSKyQ~DFKFKRP\FKWUzQPQJ~

  • 8/14/2019 Gioi thieu Ip vesion 4

    30/41

    * U ` @ B G L l M F B N M B @ * M S D Q M D S * U ` @ B G L l M F B N M B @ * M S D Q M D S

    * 1 R T A M D S S H M F * 1 R T A M D S S H M F

    D1JX\tQQKsQ

    1K}~QzXWUzQ~DFKWUzQ,QWHUQHWWKFVOP-WWLQJX\zQP-WPQJNKLJLDQKS,QWHUQHW~}F7UXQJWyPWK{QJWLQPQJ,QWHUQHW1,&SKyQFKRP-WV~DFKYD~GQJYL\zXFXOF~VDXQ\QXPQJSKWWULQWKzPOLSKL[LQ1,&WKzP~O~LXNK{QJWKXQWLQFKRFFQKNKDLWKFPQJ

    +|QQDFFOS~DFKFD,QWHUQHWNK{QJSKLKRQWRQSKKSYL\zXFXWKFW~DFKOS%FKQJKQPLP-W~DFKPQJFWKFSFKRP\FK7KFWFPQJQKFKFYLFKFP\FKWKVOQJSKUWQKLX~DFKFQOLPNK{QJDLGQJ~}FwNKFSKFYQ~Q\YWQGQJWL

    ~D~DFK~}F1,&SKyQEW~XWQxPQJ}LWDQJK~QwDFKPQJFRQ

    1K}Y\SKyQ~DFKPQJFRQOPU-QJ~DFKFKRQKLXPQJWUzQF|VPWpDFKPuQJP1,&SKyQFKRSKKSYLVO}QJWKFWP\FK FWUzQWQJPQJ

    E3KwvQJSK|SSKsQFKLDxDFKP}QJFRQ

    7U}FNKLQJKLzQFXSKQQ\FKQJWDFQSKLKLXTXDP-WVNKLQLPOLzQTXDQWLYLFSKyQ~DFKFFPQJFRQ

    'HIDXOW0DVN*LWUWUQ~DFKPQJ~}F~QKQJKDWU}FFKRWQJOS~DFK$%&7KFFKWOJLWUWKSSKyQFDRQKWNKLWWFELW~XEQJWURQJFF2FWHWGQKFKR~DFKPQJ1HW,'

    'HIDXOW0DVN/S$ /S% /S&

    6XEQHW0DVNJLWUWUQFDWQJPQJFRQ

    6XEQHW0DVNONWKSFD'HIDXOW0DVNYLJLWUWKSSKyQFDRQKWFDFFELWO\WFF2FWHWFD~DFKP\FKVDQJSKQ~DFKPQJ~WR~DFKPQJFRQ

    6XEQHW0DVNEDRJLFQJ~LNPYL~DFKPQJWLzXFKXQ ~FKRQJ}L~FELW~DFKPQJWLzXFKXQQ\GQJFFKR P\ FK KD\FKLDUDWKQKFFPQJFRQ0WNKFQFQJLS 5RXWHUWURQJ YLF~QKWX\QFX-FJL

  • 8/14/2019 Gioi thieu Ip vesion 4

    31/41

    1JX\lQWyFFKXQJ

    /\EWP-WVELWFDSKQ~DFKP\FK~WR~DFKPQJFRQ/\~LEDRQKLzXELWSKWKX-FYRVPQJFRQFQWKLW6XEQHWPDVN

    PQKNKDLWKFPQJTX\W~QKVWRUD

    9~DFKOS$Y%~X~KWK|QQDKLQWLPQJ,QWHUQHWFD7QJF{QJW\GR9'&TXQ O~DQJ~}FSKyQ~DFKPQJOS&QzQFKQJWDVQJKLzQFXNSKyQFKLD~DFKPQJFRQOS&

    , q D F K P } Q J F R Q F D x D F K O S &

    & O D V V F

    2FWHW 2FWHW 2FWHW 2FWHW

    1 1 0

    net id host id

    wDFKOS&FRFWHWFKR~DFKPQJYRFWHWFXLFKR~DFKP\FKYY\FKFELWOWKX\W~WRPQJFRQWKFWQXGQJELW~PPQJFRQYELWFKR~DFKP\FKWKYQFKOP-WPQJYQJ}FOLELW~FKR

    PQJYELWFKR~DFKP\FKWKP-WPQJFK~}FP-WP\QK}Y\NK{QJORJLFWQKWSKLGQJELW~PU-QJ~DFKYELWFKR~DFKP\FKWUzQWQJPQJ'RY\WUzQWKFWFKGQJQK}EQJVDX

    'HIDXOW0DVNFDOS&

    w D F K

    P \ F K

    ELW~FKPQJFRQELW~FKP\FKELW~FKPQJFRQELW~FKP\FKELW~FKPQJFRQELW~FKP\FKELW~FKPQJFRQELW~FKP\FKELW~FKPQJFRQELW~FKP\FK

    ' H I D X O W 0 D V N w D F K

    P Q J F R Q

  • 8/14/2019 Gioi thieu Ip vesion 4

    32/41

    7 U o Q J 6 X E Q H W P D V N 6 O o Q J P u Q J F R Q V P t \ F K W U l Q

    K S W Q J P u Q J

    %QJNKQxQJFKLDPQJFRQFD~DFK/S&

    1K}Y\P-W~DFKPQJOS&FKF WUoQJKSODFKQWUzQ+D\6XEQHW0DVNNKFQKDXWXWQJWU}QJKSFWK~TX\W~QKVPQJFRQ

    7UoQJKS+DLPuQJFRQ

    6XEQHW0DVN7P-W~DFKWLzXFKXQWR~}F~DFKFKRKDLPQJFRQPLP-W

    PQJFP\FK6GQJKDLELWELWY FDSKQ~DFKP\FK~WRPQJFRQ

    1K}Y\FQOLELW~SKyQFKRP\FK

    D 7 Q K p D F K P u Q J

    2 F W H W

    %LW

    [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[

    *KLFK[[[[[[[[[O~DFKPQJWLzXFKXQFDOS&

    wDFKFDPQJOJLWUFDELWYOQO}WEQJY7URQJWU}QJKSFKLD~DFKPQJFRQNK{QJEDRJL~}FGQJ~DFKNKLFFELW~XEQJKD\EQJ'RY\WU}QJKSPQJFRQQLWUzQ~DFKPQJFRQVO

    0QJFRQwDFKPQJ[[[[[[[[[0QJFRQwDFKPQJ[[[[[[[[[

    E 7 Q K p D F K F K R P t \ F K F K R P u Q J F R Q

  • 8/14/2019 Gioi thieu Ip vesion 4

    33/41

    &KQJWDFKFQELWFKR~DFKP\FKWUzQWQJPQJ

    2 F W H W

    %LW

    [[[[[[[[[[[[[[[[[[wDFKPQJ[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[

    [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[.K{QJSKyQ

    wDFKPQJFRQ

    0LPQJFQOL~DFKFKRP\FK0QJ7[[[[[[[[[~Q[[[[[[[[[

    F 7 Q K p D F K F K R P t \ F K F K R P u Q J F R Q

    7}|QJWQK}FFKWQKWUzQWDF

    2 F W H W

    %LW

    [[[[[[[[[[[[[[[[[[wDFKPQJ[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[

    [[[[[[[[[[[[[[[[[[

  • 8/14/2019 Gioi thieu Ip vesion 4

    34/41

    [[[[[[[[[[[[[[[[[[.K{QJSKyQ

    wDFKPQJFRQ

    0QJwDFKP\FKWUzQPQJ7[[[[[[[[[~Q[[[[[[[[[

    7QJTXWOL

    VXEQHWLG KRVWV

    D0QJFRQWKQKWwDFKPQJFRQ[[[[[[[[[wDFKFFP\FKWUzQPQJFRQQ\W

    [[[[[[[[[[[[[[[[[[[[[[[[[[[

    ~Q [[[[[[[[[

    E0QJFRQWKwDFKPQJFRQ[[[[[[[[[wDFKFFP\FKWUzQPQJFRQQ\W

    [[[[[[[[[[[[[[[[[[

    ~Q [[[[[[[[[wDFKP\FKW~QYW~QYEPWQJKDOPW

    ~DFK

    9GwDFKWLzXFKXQOS&O6XEQHWPDVN7~DFKQ\WDFPQJFRQO

    0QJwDFKPQJwDFK0\FKWUzQPQJQ\

    7 ~Q0QJwDFKPQJ

    wDFKP\FKWUzQPQJQ\

  • 8/14/2019 Gioi thieu Ip vesion 4

    35/41

    7~Q

    7UoQJKS6tXPuQJFRQ

    6XEQHWPDVN7R~}FPQJFRQPLPQJFRQFP\FK

    D 7 Q K p D F K 0 u Q J F R Q

    7U}QJKSQ\VGQJELWELWFD~DFKP\FK2FWHWEVXQJFKR~DFKPQJWLzXFKXQ~WRPQJFRQ

    2 F W H W

    %LW

    [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[

    %WU}QJKSFFELW~XEQJKD\FKQJWDFQOL~DFKFD

    PQJFRQVDX

    [[[[[[[[[0QJFRQ[[[[[[[[[0QJFRQ[[[[[[[[[0QJFRQ

    [[[[[[[[[0QJFRQ[[[[[[[[[0QJFRQ

    [[[[[[[[[0QJFRQ

  • 8/14/2019 Gioi thieu Ip vesion 4

    36/41

    E 7 Q K p D F K P t \ F K F K R P u Q J F R Q

    2 F W H W

    %LW

    [[[[[[[[[[[[[[[[[[wDFKPQJ[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[.K{QJSKyQ

    1K}Y\~DFKP\FKFDPQJFRQVW~Q7}|QJWQK}FFKWQK~QzXWUzQFKQJWDFWKWQK~}FFKRWWFFFWU}QJKSFQOL[HPEQJY~}FWQJKSOLQK}VDX

    7U}QJKS6XEQHWPDVNPQJFRQP\FKPLPQJ

    7U}QJKS6XEQHWPDVN

    PQJFRQP\FKPLPQJ

    7U}QJKS6XEQHWPDVNPQJFRQP\FKPLPQJ

    7U}QJKS6XEQHWPDVNPQJFRQP\FKPLPQJ

    7U}QJKS6XEQHWPDVNPQJFRQ

    P\FKPLPQJ7 U } Q J K S 7 U } Q J K S 7 U } Q J K S 7 U } Q J K S 7 U } Q J K S

    V X E Q H W V K R V W V

    S H U Q H W

    V X E Q H W V K R V W V

    S H U Q H W

    V X E Q H W V

    K R V W V S H U Q H W

    V X E Q H W V

    K R V W V S H U Q H W

    V X E Q H W V K R V W V

    S H U Q H W

    V X E Q H W

    L G

    w F K

    K R V W V

    w D F K

    V X E Q H W

    L G

    w F K

    K R V W V

    w D F K

    V X E Q H W

    L G

    w F K

    K R V W V

    w D F K

    V X E Q H W

    L G

    w F K

    K R V W V

    w D F K

    V X E Q H W

    L G

    w F K

    K R V W V

    w D F K

  • 8/14/2019 Gioi thieu Ip vesion 4

    37/41

    P Q J P \ F K

    W ~ Q

    P Q J P \ F K

    W ~ Q

    P Q J P \ F K

    W ~ Q

    P Q J P \ F K

    W ~ Q

    P Q J P \ F K

    W ~ Q

    7 U } Q J K S

  • 8/14/2019 Gioi thieu Ip vesion 4

    38/41

    7U}QJKS7U}QJKS

    9GwDFKPQJOS&P1,&SKyQFKR9'&O7UzQ~DFK

    Q\SKyQUDPQJFRQWK~DFKVO0QJwDFKPQJwDFKP\FKWUzQPQJ~W~Q0QJwDFKPQJwDFKP\FKWUzQPQJ~W~Q

    , , q D F K P } Q J F R Q W x D F K O S %

    'HIDXOW0DVNFDOS%O

    FODVVE

    2FWHW 2FWHW 2FWHW 2FWHW

  • 8/14/2019 Gioi thieu Ip vesion 4

    39/41

    1 0

    net id host id

    1 H W , ' . K L S K y Q ~ D F K P Q J F R Q V G Q J 2 F W H W

    wDFKOS%F2FWHWWKYWKGQKFKR~DFKP\FKQzQYQJX\zQOFWKO\~}FFELW~WR~DFKPQJ1XWP-W~DFKPQJ~}F1,&SKyQFKQJWD~QKPU-QJOzQPQJYPLPQJVFP\FK7U}QJKSQ\VO\KWELWFDRFWHWWKEVXQJYR~DFKPQJYFKFQOLELWWKFWFKR~DFKP\FKWKHRFFKWQKVWKSSKyQ 3 JLWUFDELWQK}~QzXSKQOS&FKQJWDVF

    %rQJSKkQFKLDpDFKPuQJFRQOS%

    &ODVV%

    6 X E Q H W W L Q J ' H I D X O W

    6 X E Q H W P D V N

    6XEQHW0DVNRIVXEQHWV

    6 P Q J F R Q

    RIKRVWVSHUVXEQHW6 P \ F K W U z Q P L

    P Q J F R Q

    6 G Q J 2 F W H W ~ P U - Q J P Q J F R Q

    6 G Q J F 2 F W H W

    ~ P U - Q J P Q J F R Q

    wDFKOS%YOWKX\WFRFWHW~XFKR~DFKPQJNKLFKLDPQJFRQWKHRSK}|QJSKSVGQJWWFELWWURQJRFWHWFKR~DFKPQJWUzQWKFW}|QJQJYLOS&QK}Y\Y~DFK1,&SKyQOOS%QK}QJFFKWFKF~D

  • 8/14/2019 Gioi thieu Ip vesion 4

    40/41

    FKOLOS&;HP%QJSKOFSKyQ~DFKPQJFRQOS% 7URQJEQJQ\FQFKF-WNKRQJFFK~DFKJLDPQJFRQJLLWKLXFKRFKQJWDFFKWQK~DFKFFPQJFRQ~DFKFFP\FKWUzQWQJPQJOLzQTXDQWLF-W

    9G7U}QJKS6XEQHWPDVNOUQKW&KLD~}FPQJFRQPLPQJFRQFP\FKNKRQJ

    FFK~DFKJLDKDLPQJFRQOFQJKD

  • 8/14/2019 Gioi thieu Ip vesion 4

    41/41

    0QJFRQF~DFKO[[[\\\0QJFRQVF~DFKO[[[\\\[[[\\\FWLSWFQK}Y\WDVWQK~}F

    ~DFKFDWQJPQJFRQYPQJFRQO[[[\\\wDFKP\FK~XWLzQWUzQPQJFRQO[[[\\\~DFKP\

    FK~XWLzQWUzQPQJFRQVO[[[\\\[[[\\\7LSWFQK}Y\WDVWQK~DFK~}FP\FK~XWLzQFDPQJFRQO[[[\\\YY

    7}|QJWFKQJWDELW~}F~DFKFXLFQJFDFFP\FKWUzQP-WPQJFRQ7KHRK}QJGQQ\FKQJWDVWP~}FFFWU}QJKSNKF

    7POLFKLD~DFKPQJFRQFQJSKLWKHRP-WTX\OXWQKW~QKQJRLPXQFDFKQJWDNKLFKLDPQJFRQFQJEPWNKQKLX~DFKPWWKD\QKLXWXWKX-FYRFFWU}QJKSFWK