8/9/2019 ICNDFT01 02 Servicios IP_ClassDirIP DNS
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2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.01-1
Building a Simple Network
nderst!nding the"C#$I# Internet%!yer
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2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.01-2
Internet Protocol Characteristics
&'er!tes !t net(or) l!yer o* &SI
Connectionless 'rotocol
#!c)ets tre!ted inde'endently
+ier!rchic!l !ddressing
est-e**ort delivery
No d!t!-recovery *e!tres
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2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.01-
Why IP Addresses?
"hey ni/ely identi*y e!ch device on !n I# net(or).
very host com'ter, net(or)ing device, 'eri'her!l mst h!ve! ni/e !ddress.
+ost ID34 Identi*ies the individ!l host
4 Is !ssigned 5y org!ni6!tions to individ!l devices
Net(or).+ost
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2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.01-
IP PDU eader
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2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.01-8
IP Address !ormat" Dotted DecimalNotation
"he 5in!ry-to-decim!l !nd decim!l-to-5in!ry conversion (ill 5e det!iled l!ter
in this corse.
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2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.01-9
IP Address Classes" #he !irst $ctet
8/9/2019 ICNDFT01 02 Servicios IP_ClassDirIP DNS
7/18 2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.01-7
IP Address %anges
:127 01111111 is ! Cl!ss A !ddress reserved *or loo'5!c) testing !nd c!nnot 5e!ssigned to ! net(or).
8/9/2019 ICNDFT01 02 Servicios IP_ClassDirIP DNS
8/18 2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.01-;
%eser&ed Address
8/9/2019 ICNDFT01 02 Servicios IP_ClassDirIP DNS
9/18 2007 Cisco Systems, Inc. All rights reserved. ICND1 v1.01-
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