NETWORK+ GUIDE TO NETWORKS, FOURTH EDITION - CHAPTER 4 pot

NETWORK+ GUIDE TO
NETWORKS, FOURTH EDITION
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
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 !"!#$#$
 %
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&   
"!'
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 !"!#
 (!  
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 !")  !"#
*
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+&,-
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&   ./!#
$#$& %
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,( //  !
,+,/ /"/- 0
+0   / .*-
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  0 $ 
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1,&12

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*" .
 / 3 "4 !
!/(" 
("*( 5 2%
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' 6   .
/  
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'#
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6$#$ %
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#+1%'12
12#112-
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!4(
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&,%1 / "
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,!    
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!!2% 0%
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( /  2%
(
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   *" "/(  !
 /


#  
"
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7#1126
+1%'12
12-
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*(*"*
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  "
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  ) 
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 (*".
8  . /
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*9 
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   
/!*( / .
. .
7
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7#1126
+&,-
Figure 4-1: A TCP segment
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7#1126
+&,-
Figure 4-2: TCP segment data
9

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7#1126
+&,-
Figure 4-3: Establishing a TCP connection by three handle
&,+&1,%%1%'12-
Figure 4-4: A UDP segment
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+112-
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* !/ ( 
(*
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,:   
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"
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 (#  
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& (  

./6  ;!#
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 *!
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+&,-
Figure 4-5: An IP datagram
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+&,-
Figure 4-6: IP datagram data
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'+112

'%12-

" 
!!*"
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  !  .
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  ! 
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  (
/!*"+2-;

 
15
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

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
'+11&
'%%'12-

"/ .
/ .

 / / .   
< .! 

 ))/ /

 !  .* !  .*  

1'/  
( ./.  /
  .

16
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
%1+%,,112&
12-

"

( '%+"-!

(/'%:
+.-

%1(6(   .
. 4'%))/ .

," /%1(   
/%18 (<("
" %1(

%1(  / " .
%1"
17
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1%1+11%,,1
12&12-

% ('% 
* "

!* :   
%1


1%1*/  (!'%
 
%,,1#

 (!. .

%6 8=>)( /(

,* ! ("

?*! . .!
/  

>@@*!( / 
19
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%,,1#+&,-
Figure 4-8: IP addresses and their classes
20
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%,,1#+&,-

' "  . 

 (. ("*

* A+*A-  
 ./

/*!
!  


B>C*!*//  .
!

2(

 <.60 $// *
 !/

! <. & ; 2 ;
21
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%1D%,,,,'%2
%

'// "!; .


,/ /(( ? >@@ 
( "

("

 /( /
( "8* 
&'%E

*"* #)(  <
("( /

=>)( /( /( *:
 !/! (./ 

*

(  .6(* . .! 
 //. 
./ 
23
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

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
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%%,,1

  /* 8


6/ ". 

 "  !

' / "  
*/". 
24
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


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


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
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

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
+1%12-

& ! 
*:'%. 
 " /"

," /

% "

 ('%*
6


 :
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!*

7 /!*
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!!
25

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
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


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
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

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,7+,D%'7
F&1%12-

%// !.  . 8
*"*  

% "

1/   .  
/ ./ 

1 ! .  .


 (/*   
* . .# <.
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' .  !/(