wifi technology.ppt
TRANSCRIPT
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PRIYANKA RAO
YASHESH MORKHIA
RUSHABH VORAAKSHAY PATIL
KANCHAN INDALKAR
KIRAN YADAV
835
816
831819
809
838
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Intr!"#t$n
%$&'$ T(#)n*+$(,
%$&'$ Ar#)$t(#t"r(
%$&'$ N(t-r. E*(/(nt,
H- %$&'$ N(t-r. %r.,
%$&'$ N(t-r. T*+$(,
%$&'$ Cn2+"rt$n,
A*$#t$n, %$&'$
%$&'$ S(#"r$t4
A!nt+(, D$,!nt+(, %$&'$
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%$r(*(,, T(#)n*+4 $, n *t(rnt$( t %$r(!T(#)n*+47 -)$#) $, #//n*4 ",(!7 r#nn(#t$n+ !($#(, $n -$r(*(,, /!(
%$&'$ %$r(*(,, '$!(*$t4: $, +(n(r$# t(r/ t)tr((r, t t)( IEEE 80;11 #//"n$#t$n,,tn!r! r %$r(*(,, L#* Ar( N(t-r.,%LAN,:
%$&'$ N(t-r. #nn(#t #/"t(r, t (#) t)(r7 tt)( $nt(rn(t n! t t)( -$r(! n(t-r.
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A(r $n *t( 1999
O(rt(, t 2.4GHzr!$ ,(#tr"/
11 Mbps t)(r(t$#* ,((!: & -$t)$n 30 /
Rn+(4-6 Mbps #t"* ,((!:
100 -150 ((t rn+(
M,t "*r7 L(,t E?(n,$(
Int(r(r(n#( r/ />$*( )n(, n!B*"(tt) !($#(, -)$#) #n r(!"#( t)(trn,/$,,$n ,((!
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Intr!"#(! $n 2001
O(rt(, t 5 GHz *(,, "*r:
54 Mbps t)(r(t$#* ,((!:
15-20 Mbps A#t"* ,((!:
50-75 feet range
Mr( (?(n,$(
Nt #/t$>*( -$t) 80;11>
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Intr!"#(! $n 2003
C/>$n( t)( (t"r( >t) ,tn!r!,
7>:100-150((t rn+(
54 Mbps S((!
2.4 GHz r!$ r(@"(n#$(,C/t$>*( -$t) >
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Intr!"#(! $n 2009
I/r(! n(t-r. r/ 5 M>$t, t 600
M>$t,175 Feet range
300 Mbps - 450 Mbps+ S((!
2.4/5 GHz r!$ r(@"(n#$(,80;11n $, ,t(r t)n 80;11+
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Access !"nt #A$ - The AP is a wireless LANtransceiver or base station that can connect one or manywireless devices simultaneously to the Internet.
%"-F" car&s They accept the wireless signal and relayinformation. They can be internal and
e.g P!"!IA !ard for Laptop and P!I !ard for #es$top P!%
'afeg(ar&s - &irewalls and anti'virus software protectnetwor$s from uninvited users and $eep information secure.
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B,$# #n#(t $, ,/( , %*.$( t*.$(,
A %$&'$ )t,t $, #r(t(! >4 $n,t**$n+ n ##(,,$nt t n $nt(rn(t #nn(#t$n
An ##(,, $nt #t, , >,( ,tt$n%)(n %$&'$ (n>*(! !($#( (n#"nt(r, )t,t t)(
!($#( #n t)(n #nn(#t t t)t n(t-r. -$r(*(,,*4
A ,$n+*( ##(,, $nt #n ,"rt " t 30 ",(r, n!#n "n#t$n -$t)$n rn+( 100 150 ((t $n!r,
n! " t 300 ((t "t!r,Mn4 ##(,, $nt, #n >( #nn(#t(! t (#) t)(r
$ Et)(rn(t #>*(, t #r(t( ,$n+*( *r+( n(t-r.
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AP&>,(! t*+4 Inr,tr"#t"r( M!(:
P((r&t&((r t*+4 A!&)# M!(:
P$nt&t&/"*t$$nt >r$!+( t*+4
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T)( #*$(nt #//"n$#t( t)r"+) A##(,, P$nt
BSA&R' #(r+( r$!(! >4 n AP
ESA&It #n,$,t, ; r /r( BSA
ESA #(** $n#*"!(, 10&15 (r* t **- r/$n+
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AP $, nt r(@"$r(!
C*$(nt !($#(, -$t)$n #(** #n #//"n$#t(!$r(#t*4 -$t) (#) t)(r
It $, ",("* r ,(tt$n+ " -$r(*(,, n(t-r.@"$#.*4 n! (,$*4
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T)$, $, ",(! t #nn(#t LAN $n n( >"$*!$n+ t LAN, $n t)(r >"$*!$n+, ((n $ t)( >"$*!$n+, r(/$*(, rt T)(,( #n!$t$n, r(#($( #*(r *$n( ,$+)t >(t-((n >"$*!$n+, T)( *$n(&&,$+)t rn+(r$(, >,(! n t)( t4( -$r(*(,, >r$!+( n!
nt(nn ",(! , -(** , t)( (n$rn/(nt*#n!$t$n,
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%$r(*(,, t(#)n*+4 !(,nt r(/( n4 *! ,(#"r$t4$,,"(,7 >"t $ntr!"#(, n(- n(, E(,!r$n+
Mn&$n&t)(&/$!!*( tt#., D(n$* S(r$#(
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E,4 t (rr/7 */,t $/,,$>*( t !(t(#t
B4 !("*t7 ((r4t)$n+ $, trn,/$tt(! $n #*(rt(?t
U,(rn/(,7 ,,-r!,7 #nt(nt N ,(#"r$t4 F(r(! >4 t)( trn,/$,,$n /(!$"/
D$F(r(nt t*, $*>*( n t)( $nt(rn(tN(t-r. ,n$F(r,7 rt#* n*4,(r,
P,,-r! #**(#tr,%$t) t)( r$+)t (@"$/(nt7 $t, ,,$>*( t((,!r trG# r/ (- .$*/(t(r, -4
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1 Att#.(r ,(, !$,,,#$t( /(,,+(r/ t)( $#t$/
; T)( $#t$/ ,trt, t*. r n(- ##(,,
$nt7 n! t)( tt#.(r!(rt$,(, )$, -n APn !$F(r(nt #)nn(*7",$n+ t)( r(* AP,MAC !!r(,,
3 T)( tt#.(r #nn(#t,t t)( r(* AP ",$n+$#t$/, MAC !!r(,,
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Att#. n trn,/$,,$n r(@"(#4 ",(! 'r(@"(n#4 //$n+
Nt (r4 t(#)n$#*7 >"t -r.,
Att#. n MAC *4(r S(! !("t)(nt$#t$n !$,,,#$t$n /(,,+(,
#n tr+(t n( ,(#$2# ",(r
Att#., n )$+)(r *4(r rt#* TCPIPrt#*: SYN '*!$n+
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T)( r(@"$r(/(nt, r %$&'$ n(t-r. ,(#"r$t4 #n >(>r.(n !-n $nt t- r$/r4 #/n(nt,=
A"t)(nt$#t$n U,(r A"t)(nt$#t$n S(r(r A"t)(nt$#t$n
Pr$#4
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K(($n+ "n"t)r$(! ",(r, F t)( n(t-r.
U,(r A"t)(nt$#t$n
A"t)(nt$#t$n S(r(r $, ",(!U,(rn/( n! ,,-r!
R$,.= Dt ",(rn/( < ,,-r!: ,(n! >(r( ,(#"r(
#)nn(* (,t>*$,)(!
Prn( t ,,$( ((,!r$n+ >4 tt#.(r
S*"t$n E,t>*$,)$n+ (n#r4t(! #)nn(* >(r( ,(n!$n+
",(rn/( n! ,,-r!
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S(r(r A"t)(nt$#t$n D$+$t* C(rt$2#t( $, ",(!
V*$!t$n !$+$t* #(rt$2#t( ##"r, "t/t$#**4 -$t)$n
#*$(nt ,t-r(
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80;1J A##(,, Cntr*
%$r(*(,, Prt(#t(! A##(,, %PA:
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D(,$+n(! , +(n(r* "r,( n(t-r. ##(,, #ntr* /(#)n$,/
A"t)(nt$#t( (#) #*$(nt #nn(#t(! t AP r %LAN: r ,-$t#) rtr Et)(rn(t:
A"t)(nt$#t$n $, !n( -$t) t)( RADIUS ,(r(r7 -)$#) t(**, t)(##(,, $nt -)(t)(r ##(,, t #ntr**(! rt, ,)"*! >( **-(!r nt AP r#(, t)( ",(r $nt n "n"t)r$(! ,tt(
",(r ,(n! n EAP ,trt /(,,+(
AP r(t"rn n EAP /(,,+( r(@"(,t$n+ t)( ",(r, $!(nt$t4
I!(nt$t4 ,(n! >4 ",(r $, t)(n r-r(! t t)( "t)(nt$#t$n ,(r(r >4 AP A"t)(nt$#t$n ,(r(r "t)(nt$#t( ",(r n! r(t"rn n ##(t r r((#t/(,,+( >#. t t)( AP
I ##(t /(,,+( $, r(t"rn7 t)( AP #)n+(, t)( #*$(nt, ,tt( t"t)r$(! n! nr/* trG# -,
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%PA $, ,(#$2#t$n ,tn!r! >,(!7 $nt(r(r>*( ,(#"r$t4(n)n#(/(nt, t)t ,trn+*4 $n#r(,( t)( *((* !t rt(#t$nn! ##(,, #ntr* r (?$,t$n+ n! "t"r( -$r(*(,, LAN ,4,t(/
U,(r A"t)(nt$#t$n 80;1?
EAP
TKIP T(/r* K(4 Int(+r$t4 Prt#*: (n#r4t$n !4n/$# (n#r4t$n .(4, ,(,,$n >,(!:
N(- 1;8&>$t .(4 (r #.(t .(4 /$?$n+ "n#t$n
U,(, M(,,+( Int(+r$t4 #)(#. En,"r(, !t $nt(+r$t4
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H/(
S/** B",$n(,,(, r SOHO
Lr+( Crrt$n, < C/",(,
H(*t) Cr(
%$r(*(,, ISP %ISP:
Tr(**(r,
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M>$*$t4
E,( In,t**t$n
'*(?$>$*$t4
C,t
R(*$>$*$t4
U,( "n*$#(n,(! rt t)( r!$ ,(#tr"/
R/$n+
S((!
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Int(r(r(n#(
D(+r!t$n $n (rr/n#(
H$+) -(r #n,"/t$n
L$/$t(! rn+(
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