The document discusses IP addressing and network address translation. It describes the purpose of IP addresses and subnet masks, the different types of IP addresses including public and private addresses. It also outlines how IP addresses can be obtained dynamically or statically, and the use of DHCP services. Finally, it explains network address translation (NAT) which allows multiple devices to share public IP addresses.

1. Adressage de
réseaux
Networking for Home and Small Businesses – Chapter
5
Version 4.0 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1

2. Objectives
 Describe the purpose of an IP address and Subnet
Mask and how they are used on the Internet.
 Describe the types of IP Addresses available.
 Describe the methods of obtaining an IP Address.
 Describe the use of NAT on a home or small business
network using an Integrated Router.
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2

3. Rôle de l’adresse IP
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3

4. Rôle de l’adresse IP
 Structure de l’adresse IP
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4

5. Rôle de l’adresse IP
 Parties d’une adresse IP
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5

6. Rôle de l’adresse IP
 masques de sous-réseau par défaut
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6

7. Types of IP Addresses
 Classes d’adresses IP et masques de sous-réseau par
défaut
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7

8. Types d’adresses IP
 Adresses IP publiques et adresses IP privées
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8

9. Types d’adresses IP
 Adresses de monodiffusion, de diffusion et de
multidiffusion (Unicast, Broadcast, Multicast)
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9

10. Types d’adresses IP
 Adresses de monodiffusion, de diffusion et de
multidiffusion (Unicast, Broadcast, Multicast)
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10

11. Types d’adresses IP
 Adresses de monodiffusion, de diffusion et de
multidiffusion (Unicast, Broadcast, Multicast)
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11

12. Comment obtenir des adresses IP ?
 Attribution dynamique et attribution statique d’adresses
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12

13. Comment obtenir des adresses IP ?
 Services DHCP
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13

14. Gestion des adresses
 Frontières des réseaux et espace d’adressage
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14

15. Gestion des adresses
 Attribution d’adresses
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15

16. Traduction d’adresses de réseau (NAT)
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16

17. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17