Tải bản đầy đủ (.pdf) (41 trang)

Tài liệu IP version 4 pptx

Bạn đang xem bản rút gọn của tài liệu. Xem và tải ngay bản đầy đủ của tài liệu tại đây (272.45 KB, 41 trang )

DFKLSY*LẽLWKLáXFKXQJ
1K} FKảQJ WD ~ ELW ,QWHUQHW O PưW PQJ P\ WÂQK WRQ FX GR KQJ
QJKQPQJP\WÂQKWáNKSPăLQ|LQơLOLWRQzQ.KFYLFFKWêFKằFWKHR
FFFSQưLKWOLzQWQKTXơFWFDPưWPQJYLQWK{QJQK}PQJWKRLFKQJ
KQPQJ,QWHUQHWWêFKằFFKFĐPưWFSFFPQJP\WÂQKGQKƠGWRNKL
QơLYR,QWHUQHW~XEQK~QJYLQKDX'RFFKWêFKằFQK}Y\QzQWUzQ,QWHUQHW
FĐFXWUảF~ÊDFKFFK~QK~ÊDFK~FELWWURQJNKLFFK~QK~ÊDFK~ơLYL
PQJYLQWK{QJOL~|QJLQK|QQKLX
wơLYLPQJYLQWK{QJQK}PQJWKRLFKQJKQNKFKKQJFFYQJ
NKFQKDXKRQWRQFĐWKFĐFQJVơ~LQWKRLSKyQELWYLQKDXEQJP
YQJPWQKKD\PTXơFWwơLYLPQJ,QWHUQHWGRFFKWêFKằFFKFĐPưW
FSQzQPôLPưWNKFKKQJKD\PưWP\FK+RVWKRF5RXWHU~XFĐPưW
~ÊDFK,QWHUQHWGX\QKWPNK{QJ~}FSKSWUQJYLEWNẵDL'RY\P~ÊD
FKWUzQ,QWHUQHWWKẳFVẳOPưWWLQJX\zQ
+QJ FKãF WULX P\ FK WUzQ KQJ WUxP QJKQ PQJ w ~ÊD FK NK{QJ
~}FWUQJQKDXFQSKLFĐFXWUảF~ÊDFK~FELWTXQOWKơQJQKWYPưW
7ê FKằF FD ,QWHUQHW JăL O 7UXQJ WyP WK{QJ WLQ PQJ ,QWHUQHW 1HWZRUN
,QIRUPDWLRQ&HQWHU1,&FKWUSKyQSKơL1,&FKSKyQ~ÊDFKPQJ1HW,'
FÔQ~ÊDFKP\FKWUzQPQJ~Đ+RVW,'GRFF7êFKằFTXQO,QWHUQHW
FDWáQJTXơFJLDPưWWẳSKyQSKơL7URQJWKẳFW~FĐWK~ÊQKWX\QURXWLQJ
WUzQPQJ,QWHUQHWQJRL~ÊDFK,3FÔQFQ~QWzQULzQJFDFFP\FK+RVW
'RPDLQ1DPH&FSKQWLSWKHRFKảQJWDK\QJKLzQFằXFXWUảF~FELWFD
~ÊDFK,QWHUQHW
,&ơXWUếFDFK,3


&KLWLW
D7KyQKSKQYyKQKG}QJFĐDxDFK,3
wÊDFK,3~DQJ~}FVạGãQJKLQWL,3YFĐELWFKLDWKQK2FWHW
PôL2FWHWFĐELWW}|QJ~}|QJE\WHFFK~P~XWáWULTXDSKLEÂWFKR
~QEÂWFF2FWHWWFKELWQKDXEQJGXFKPEDRJâPFĐWKQKSKQ


FKÂQK

class
bit
Net ID Host ID
%LW
%LWQKQGQJOS&ODVVELW
wÊDFKFDPQJ1HW,'
wÊDFKFDP\FK+RVW,'
*KLFKĂ7lQOqiDFKPt\FKQKoQJWKĐFWNKmQJFKFPt\FKPq
W~WFrFtFPt\FRQ:RUNVWDWLRQFtFFQJWUX\QKSYYpXF{QFpDFK

%LWQKQGQJOS&ODVVELW~SKyQELW~ÊDFKOSQR
wÊDFK,QWHUQHWELXKLQGQJELWQKÊSKyQ

[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\
[\ KRF
9ÂGã

ELW QKQ GQJ 2FWHW 2FWHW 2FWHW 2FWHW
wÊDFK,QWHUQHWELXKLQGQJWKSSKyQ[[[[[[[[[[[[
[OVơWKSSKyQWá~Q
9ÂGã
'QJYLW~\~FD~ÊDFK,3OFRQVơWURQJWáQJ2FWHW9ÂGã~ÊDFK,3
WK}đQJ WK\ WUzQ WKẳF W FĐ WK O QK}QJ GQJ ~\ ~ O

E&|FOÔSxDFK,3
wÊDFK,3FKLDUDOS$%&'(+LQWL~GQJKWOS$%YJQ
KWOS&FÔQOS'Y(7êFKằFLQWHUQHW~DQJ~GQKFKRPãF~ÂFKNKFNK{QJ
SKyQQzQFKảQJWDFKQJKLzQFằXOS~X

16
24
class a :
0
class b
10
class c
1
10
net id host id
net id
host id
net id
host id
1
32
8
octet 1
octet 4
octet 3octet 2

8
16
24
32
1 1 1 0
Class d


8

16
24
32
1 1 1 1 0
class e

4XDFXWU¶FFFO±S~£DFK,3FK¶QJWDF§QKQ[WVDX
%LWQKQGQJOQKºQJELW~XWLzQF´DO±S$OF´DO±S%OF´D
O±S&O
/S'FĐELW~XWLzQ~QKQGQJOFÔQOS(FĐEÂW~XWLzQ
~QKQGQJO
wÊDFKOS$wÊDFKPQJÂWY~ÊDFKP\FKWUzQWáQJPQJQKLX
wÊDFKOS%wÊDFKPQJYáDSKLY~ÊDFKP\FKWUzQWáQJPQJ
YáDSKL
wÊDFKOS&wÊDFKPQJQKLX~ÊDFKP\FKWUzQWáQJPQJÂW
iD FK 9QJ pD FK 6 PuQJ WL pD 6 Pt\ FK WL pD
OS Oô WKX\W VÔ GÂQJ WUlQ WÊQJ PuQJ
$ Wá~Q
% Wá~Q
&Wá~Q
'Wá~Q.K{QJSKyQ
(Wá~Q.K{QJSKyQ

iD FK 9QJ pD FK %LW QKQ GuQJ 6 ELW GQJ p
OS VÔ GÂQJ 3KkQ FKR PuQJ
$ Wá~Q
% Wá~Q
&Wá~Q
'
(

1K}Y\QXFKảQJWDWK\~ÊDFK,3FĐQKĐPVơFFKQKDXEQJGXFKP
QX WK\ QKĐP Vơ WKằ QKW QKƠ K|Q ELW ~ÊD FK Q\ OS $ QP WURQJ
NKRQJ~QELW~ÊDFKQ\OS%YWá~QELW~ÊDFKQ\
OS&
,LDFKPQJFRQFểD,QWHUQHW
,3VXEQHWWLQJ
D1JX\tQQKsQ
1K}~QzXWUzQ~ÊDFKWUzQ,QWHUQHWWKẳFVẳOPưWWLQJX\zQPưWPQJ
NKLJLDQKS,QWHUQHW~}F7UXQJWyPWK{QJWLQPQJ,QWHUQHW1,&SKyQFKRPưW
Vơ~ÊDFKYáD~GQJYL\zXFXOảF~ĐVDXQ\QXPQJSKWWULQWKzPOL
SKL[LQ1,&WKzP~ĐO~LXNK{QJWKXQWLQFKRFFQKNKDLWKFPQJ
+|QQDFFOS~ÊDFKFD,QWHUQHWNK{QJSKLKRQWRQSKKSYL\zX
FXWKẳFW~ÊDFKOS%FKQJKQPôLPưW~ÊDFKPQJFĐWKFSFKR
P\FK7KẳFWFĐPQJQKƠFKFĐYLFKãFP\FKWKVOQJSKÂUWQKLX
~ÊDFKFÔQOLPNK{QJDLGQJ~}FwNKFSKãFYQ~Q\YWQGãQJWơL
~D~ÊDFK~}F1,&SKyQEW~XWáQxPQJ}đLWDQJKĂ~QwÊDFKPQJ
FRQ
1K}Y\SKyQ~ÊDFKPQJFRQOPUưQJ~ÊDFKFKRQKLXPQJWUzQF|
VPWpDFKPuQJP1,&SKyQFKRSKKSYLVơO}QJWKẳFWP\FKFĐ
WUzQWáQJPQJ
%3KwvQJSK|SSKsQFKLDxDFKP}QJFRQ
&KLWLW
7U}F NKL QJKLzQ FằX SKQ Q\ FKảQJ WD FQ SKL KLX TXD PưW Vơ NKL
QLPOLzQTXDQWLYLFSKyQ~ÊDFKFFPQJFRQ
'HIDXOW0DVN*LWUÊWUQ~ÊDFKPQJ~}F~ÊQKQJKĂDWU}F
FKRWáQJOS~ÊDFK$%&7KẳFFKWOJLWUÊWKSSKyQFDRQKWNKLWW
FELW~XEQJWURQJFF2FWHWGQKFKR~ÊDFKPQJ1HW,'
'HIDXOW0DVN /S$
/S%
/S&

6XEQHW0DVNJLWUÊWUQFDWáQJPQJFRQ
6XEQHW0DVNONWKSFD'HIDXOW0DVNYLJLWUÊWKSSKyQFDRQKWFD
FFELWO\WáFF2FWHWFD~ÊDFKP\FKVDQJSKQ~ÊDFKPQJ~WR
~ÊDFKPQJFRQ
6XEQHW0DVNEDRJLđFàQJ~LNPYL~ÊDFKPQJWLzXFKXQ ~
FKRQJ}đL~ăFELW~ÊDFKPQJWLzXFKXQQ\GQJFFKR P\ FK KD\
FKLDUDWKQKFFPQJFRQ0WNKFQĐFÔQJLảS 5RXWHUWURQJYLF~ÊQK WX\Q
FXưFJăL
1JX\lQWyFFKXQJ
/\EWPưWVơELWFDSKQ~ÊDFKP\FK~WR~ÊDFKPQJFRQ
/\~LEDRQKLzXELWSKãWKXưFYRVơPQJFRQFQWKLW6XEQHWPDVN
PQKNKDLWKFPQJTX\W~ÊQKVWRUD
&XWUằFăDFKÊFạD,QWHUQHWăDFKÊ,3
1GrM * (He SGHT BGTMF
1GrM * (He SGHT BGTMF
1K} FKảQJ WD ~ ELW ,QWHUQHW O PưW PQJ P\ WÂQK WRQ FX GR KQJ
QJKQPQJP\WÂQKWáNKSPăLQ|LQơLOLWRQzQ.KFYLFFKWêFKằFWKHR
FFFSQưLKWOLzQWQKTXơFWFDPưWPQJYLQWK{QJQK}PQJWKRLFKQJ
KQPQJ,QWHUQHWWêFKằFFKFĐPưWFSFFPQJP\WÂQKGQKƠGWRNKL
QơLYR,QWHUQHW~XEQK~QJYLQKDX'RFFKWêFKằFQK}Y\QzQWUzQ,QWHUQHW
FĐFXWUảF~ÊDFKFFK~QK~ÊDFK~FELWWURQJNKLFFK~QK~ÊDFK~ơLYL
PQJYLQWK{QJOL~|QJLQK|QQKLX
wơLYLPQJYLQWK{QJQK}PQJWKRLFKQJKQNKFKKQJFFYQJ
NKFQKDXKRQWRQFĐWKFĐFQJVơ~LQWKRLSKyQELWYLQKDXEQJP
YQJPWQKKD\PTXơFWwơLYLPQJ,QWHUQHWGRFFKWêFKằFFKFĐPưW
FSQzQPôLPưWNKFKKQJKD\PưWP\FK+RVWKRF5RXWHU~XFĐPưW
~ÊDFKLQWHUQHWGX\QKWPNK{QJ~}FSKSWUQJYLEWNẵDL'RY\P~ÊD
FKWUzQ,QWHUQHWWKẳFVẳOPưWWLQJX\zQ
+QJ FKãF WULX P\ FK WUzQ KQJ WUxP QJKQ PQJ w ~ÊD FK NK{QJ
~}FWUQJQKDXFQSKLFĐFXWUảF~ÊDFK~FELWTXQOWKơQJQKWYPưW

7ê FKằF FD ,QWHUQHW JăL O 7UXQJ WyP WK{QJ WLQ PQJ ,QWHUQHW 1HWZRUN
,QIRUPDWLRQ&HQWHU1,&FKWUSKyQSKơL1,&FKSKyQ~ÊDFKPQJ1HW,'
FÔQ~ÊDFKP\FKWUzQPQJ~Đ+RVW,'GRFF7êFKằFTXQO,QWHUQHW
FDWáQJTXơFJLDPưWWẳSKyQSKơL7URQJWKẳFW~FĐWK~ÊQKWX\QURXWLQJ
WUzQPQJ,QWHUQHWQJRL~ÊDFK,3FÔQFQ~QWzQULzQJFDFFP\FK+RVW
'RPDLQ1DPH&FSKQWLSWKHRFKảQJWDK\QJKLzQFằXFXWUảF~FELW
FD~ÊDFK,QWHUQHW
OGrM ** $uT SQB g@ BG *1
OGrM ** $uT SQB g@ BG *1
D7KyQKSKQYyKQKG}QJFĐDxDFK,3
wÊDFK,3~DQJ~}FVạGãQJKLQWL,3YFĐELWFKLDWKQK2FWHW
PôL2FWHWFĐELWW}|QJ~}|QJE\WHFFK~P~XWáWULTXDSKLEÂWFKR
~QEÂWFF2FWHWWFKELWQKDXEQJGXFKPEDRJâPFĐWKQKSKQ
FKÂQK

class
bit
Net ID Host ID
%LW
%LWQKQGQJOS&ODVVELW
wÊDFKFDPQJ1HW,'
wÊDFKFDP\FK+RVW,'
*KLFKĂ7lQOqiDFKPt\FKQKoQJWKĐFWNKmQJFKFPt\FKPq
W~WFrFtFPt\FRQ:RUNVWDWLRQFtFFQJWUX\QKSYYpXF{QFpDFK

%LWQKQGQJOS&ODVVELW~SKyQELW~ÊDFKOSQR
wÊDFK,QWHUQHWELXKLQGQJELWQKÊSKyQ

[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\[\
[\ KRF

9ÂGã

ELW QKQ GQJ 2FWHW 2FWHW 2FWHW 2FWHW
wÊDFK,QWHUQHWELXKLQGQJWKSSKyQ[[[[[[[[[[[[
[OVơWKSSKyQWá~Q
9ÂGã
'QJYLW~\~FD~ÊDFK,3OFRQVơWURQJWáQJ2FWHW9ÂGã~ÊDFK,3
WK}đQJ WK\ WUzQ WKẳF W FĐ WK O QK}QJ GQJ ~\ ~ O

E&|FOÔSxDFK,3
wÊDFK,3FKLDUDOS$%&'(+LQWL~GQJKWOS$%YJQ
KWOS & FÔQ OS' Y ( 7ê FKằF LQWHUQHW ~DQJ ~ GQK FKR PãF ~ÂFK NKF
NK{QJSKyQQzQFKảQJWDFKQJKLzQFằXOS~X
16
24
class a :
0
class b
10
class c
1
10
net id host id
net id
host id
net id
host id
1
32
8

octet 1
octet 4
octet 3octet 2

8
16
24
32
1 1 1 0
Class d


8
16
24
32
1 1 1 1 0
class e

4XDFXWU¶FFFO±S~£DFK,3FK¶QJWDF§QKQ[WVDX
%LWQKQGQJOQKºQJELW~XWLzQF´DO±S$OF´DO±S%OF´D
O±S&O
/S'FĐELW~XWLzQ~QKQGQJOFÔQOS(FĐEÂW~XWLzQ
~QKQGQJO
wÊDFKOS$wÊDFKPQJÂWY~ÊDFKP\FKWUzQWáQJPQJQKLX
wÊDFKOS%wÊDFKPQJYáDSKLY~ÊDFKP\FKWUzQWáQJPQJ
YáDSKL
wÊDFKOS&wÊDFKPQJQKLX~ÊDFKP\FKWUzQWáQJPQJÂW
iD FK 9QJ pD FK 6 PuQJ WL pD 6 Pt\ FK WL pD
OS Oô WKX\W VÔ GÂQJ WUlQ WÊQJ PuQJ

$ Wá~Q
% Wá~Q
&Wá~Q
'Wá~Q.K{QJSKyQ
(Wá~Q.K{QJSKyQ

iD FK 9QJ pD FK %LW QKQ GuQJ 6 ELW GQJ p
OS VÔ GÂQJ 3KkQ FKR PuQJ
$ Wá~Q
% Wá~Q
&Wá~Q
'
(
1K}Y\QXFKảQJWDWK\~ÊDFK,3FĐQKĐPVơFFKQKDXEQJGXFKP
QX WK\ QKĐP Vơ WKằ QKW QKƠ K|Q ELW ~ÊD FK Q\ OS $ QP WURQJ
NKRQJ~QELW~ÊDFKQ\OS%YWá~QELW~ÊDFKQ\
OS&
*KL QK iD FK WKĐF W NKmQJ SKkQ WURQJ WUoQJ KS W~W Fr FtF ELW WURQJ PW KD\ QKLX
2FWHW VÔ GÂQJ FKR pD FK PuQJ KD\ pD FK Pt\ FK pX EvQJ KD\ pX EvQJ iLX Qq\
pĂQJ FKR W~W Fr FtF OS pD FK
H g@ BG -O "
H g@ BG -O "
7êQJTXWFKXQJ
%LWWKằQKWOELWQKQGQJOS$
ELWFÔQOLWURQJ2FWHWWKằQKWGQKFKR~ÊDFKPQJ
2FWHWFÔQOLFĐELWGQKFKR~ÊDFKFDP\&K
&ODVV$
2FWHW 2FWHW 2FWHW 2FWHW

8

16
24
0
net id host id
1
32
PQJP\FKWUzQPưWPQJ
DqDFKP}QJ1HW,'
.KrQjQJSKkQpDFK
.KL~PVơELWFKảQJWD~PWáWULTXDSKLQK}QJNKLWÂQKJLWUÊWKS
SKyQ
Q
FDELWOLWÂQKWáSKLTXDWULEW~XWáELW2FWHWWKằQKWGQKFKR
~ÊDFKPQJELW OELWQKQGQJOS$ELWFÔQOLWáELW~QELWGQK
FKR~ÊDFKPQJ

1K}QJWUzQWKẳFW~ÊDFKNKLWWFFFELWEQJ
KRFEQJ~XNK{QJSKyQFKRPQJ.KLJLWUÊFFELW~XEQJJLWUÊWKS
SKyQONK{QJFĐQJKĂDFÔQ~ÊDFKONKLFFELW~XEQJGQJ~WK{QJ
ERQưLEưQzQWUzQWKẳFWFÔQOLPQJ
2FWHW

0
net id



7 6 . . .. . . . . ..0 bit
&FKWÂQK~ÊDFKPQJOS$
6ơWKằWẳ%LWQWÂQKWáSKLTXDWUL

*LWUÊQKÊSKyQKD\FD%LW[[[[[[[
*LWUÊWKSSKyQW}|QJằQJNKLJLWUÊELW VO
3
*LWUÊWKSSKyQW}|QJằQJNKLJLWUÊELW NK{QJWÂQK
*LWUÊWKSSKyQOQQKWNKLJLWUÊFDELW~XEQJO
6DX~y\OFFKWÂQKWUăQYQJLWUÊFDWWFFF%LW
*LWU£W}|QJ»QJY±L
WK»W¼ELWQ1HW,'


*¢DWU£
Q
 w£DFKPQJ
.K{QJSKyQ

































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































'³QJQ­LE­
1Ko Y\ NKr QjQJ SKkQ pD FK FD OS $ FKR  PuQJ 
 %LX KLX pD FK WUlQ WK§F W 
7£  pQ 
EqDFKF§DF|FP|\FK§WUtQP WP}QJ
.KrQjQJSKkQpDFK
%D2FWHWVDXJ©PELW~}²FW¢QKW¸ELW~QELWGQKFKR~£DFKP\FK´
WUzQW¸QJPQJ
 2FWHW 2FWHW 2FWHW
host id
1
24
 %LW

9±LFFKW¢QKQK}WUzQ~~}²FWªQJV¬P\FK´WUzQP­WPQJWDF§
*LWU£W}|QJ»QJY±LELWQw£DFK

Q
P\FK´

















2FWHW2FWHW2FWHW
w£DFKNKLFFELW~XEQJKD\EQJE¥UD7UzQWK¼FWF¤QOL



 
1KoY\NKrQjQJSKkQpDFKFKRPt\FK
%LXKLQpDFKWUlQWK§FW

 2FWHW 2FWHW 2FWHW
host id
1
24
 2FWHW
%LW

*LWU£W}|QJ»QJY±L
WK»W¼ELWQ


*¢DWU£
Q
 w£DFKP\FK´





Tài liệu bạn tìm kiếm đã sẵn sàng tải về

Tải bản đầy đủ ngay
×