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Vpn site to site avec les équipements JUNIPER

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Configuration d'un VPN site to site avec les équipements JUNIPER

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Vpn site to site avec les équipements JUNIPER

  1. 1. Présenté par: Hermann GBILIMAKO Sous la direction de: M. Youssef Khlil 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 1
  2. 2. Introduction  Les entreprise disposant de plusieurs sites situés sur des points géographiques différents ont toujours ce besoin d’interconnecter leurs sites.  Plusieurs solutions d’interconnexion existent: • Les liaisons spécialisées (Cout élevé, peu flexible, topologie WAN) • Les réseaux virtuels privés (VPN faible cout, plus flexible, topologie tunnel);  Nous traiterons dans les lignes qui suivent de la mise en place de la seconde solution. 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 2
  3. 3. Plan I. Notion sur les VPN II.Présentation de Juniper III.Mise en place du VPN site to site Conclusion 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 3
  4. 4. I. Notions sur les VPN VPN = Virtual Private Network (Réseau privé virtuel) Technologie réseau permettant de construire un réseau privé à l'intérieur d'une infrastructure publique.  Privé: les échanges transitant sur ce réseau sont confidentiels.  Virtuel : le réseau privé ainsi créé n'est pas matérialisé par des liens physiques. 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 4
  5. 5. I. Notions sur les VPN Le VPN repose sur un protocole appelé « protocole de tunneling ». Ce protocole permet de faire circuler les informations de l’entreprise de façon cryptée sur le réseau virtuel. Le principe de tunnelisation consiste à construire un chemin virtuel après avoir identifié l’émetteur et le destinataire. Par la suite, l’émetteur chiffre les données et les achemine vers le destinataire en empruntant Ce chemin virtuel. 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 5
  6. 6. I. Notions sur les VPN Nous pouvons classer les protocoles de tunnelisation en trois catégories :  Les protocoles de niveau 2 comme PPTP, L2TP et L2F.  Les protocoles de niveau 3 comme IPSec ou MPLS  Les protocoles de niveau 4 comme SSL et SSH 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 6
  7. 7. I. Notions sur les VPN Il existe deux types de VPN: Le VPN Site to Site qui permet de relier deux réseaux locaux distants. Le VPN nomade qui permet à un utilisateur de se connecter à son réseau local via internet. 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 7
  8. 8. II. Présentation de Juniper 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 8 Juniper a été fondée par Pradeep Sindhu, Dennis Ferguson, et Bjorn Liencres en février 1996 en Californie. C’est une société spécialisée en équipements de télécommunication. Elle produit des solutions de réseau et de sécurité. En partenariat avec Ericsson et Siemens AG, elle fournit des solutions réseau sur IP/MPLS
  9. 9. II. Présentation de Juniper 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 9 Juniper dispose de plusieurs gammes de produits à savoir: Produits de sécurité Juniper: • Firewall (gamme NetScreen - SSG - SRX - ISG); • VPN SSL (gamme SA - Secure Acces, MAG); • Contrôle d'accès au réseau : gamme UAC (Unified Access Control), MAG; • Détection et prévention d'intrusion (sondes IDP);
  10. 10. II. Présentation de Juniper 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 10 Plates-formes réseaux Juniper : • Routeurs J-Series; • Routeurs M-Series; • Routeurs MX-Series; • Commutateurs E-Series;  Tous ces équipements utilisent JUNOS comme OS;
  11. 11. III. Mise en place du VPN 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 11
  12. 12. Quelques commandes de base de junos 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 12 cli :permet de passer en mode de fonctionnement routeur; configure : permet de passer en mode de configuration; set system root-authentication plaintext-password : permet de donner un mot de passe à l’utilisateur root; set system login user hermann class super-user authentication plain-text-password : permet de créer un utilisateur; set system host-name dakar : permet de changer le nom du routeur;
  13. 13. Quelques commandes de base de junos 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 13 set system services web-management http : permet d’activer l’administration du routeur via le http; set interfaces ge-0/0/0 unit 0 family inet address 192.168.0.2/24 : permet de donner une adresse à une interface; set routing-options static route 0.0.0.0/0 next-hop 192.168.0.1: Ajout d’une route par défaut; commit check : permet la vérification des configurations; commit : permet d’enregistrer les configurations;
  14. 14. III. Mise en place du VPN 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 14 Accès à l’interface web du routeur
  15. 15. III. Mise en place du VPN 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 15 Cliquer sur Configure VPN pour lancer la configuration Choix du type de VPN à configurer
  16. 16. III. Mise en place du VPN 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 16 Renseigner: • le nom du vpn; • la zone du réseau local et son adresse ip; • l’interface du routeur qui est relier au réseau WAN;
  17. 17. III. Mise en place du VPN 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 17 Indiquer l’adresse ip public de l’interface du routeur distant et l’adresse du réseau local distant Choix de la politique de sécurité
  18. 18. III. Mise en place du VPN 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 18 Choix du type de trafic pouvant transiter sur le réseau;
  19. 19. III. Mise en place du VPN 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 19 Cliquer sur Commit pour enregistrer la configuration
  20. 20. TEST 4/30/2015VPN SITE TO SITE AVEC LES EQUIPEMENTS JUNIPER 20

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