CCNA 2 - Capitulo 8.1

CCNA 2 - Capitulo 8.1

1. SLAAC & DHCPv6

   • IPV6 GUA ASSIGNMENT
     • DYAMIC
       • BY DEFAULT IPV6 ROUTER THAT IS ON SAME LINK AS THE HOST SEN OUT RA MESSAGES HOW TO OBTAIN THEIR IPV6 ADDRESS
       • WHEN AUTOMATIC IPV6 IS SELECTED , THE HOST WILL ATEMPT OBTAIN IPV6 , USING ONE OF TREE METHODS DEFINED BY ICMPv6
         • STATELESS
           • NO DEVICE IS TRACKING THE
             • ASSIGNMENT OF IPV6 ADDRESSES
           • TWO METHODS
             • SLAAC
               • ROUTER SENDS PROVIDING ALL IPV6 ADDRESSING
                 • ROUTER ADVERTISEMENT (RA) MESSAGES
                   • 1 - PREFIX
                   • 2 - PREFIX-LENGHT
                   • 3 - DEFAULT GATEWAY (LLA)
               • HOST USE THE RA EXCLUSIVELY FOR ALL THEIR ADDRESSING INCLUDING CREATING THEIR OWN GUA
             • STATALESS DHCPv6
               • ROUTER RA MESSAGES
                 • 2 - PREFIX-LENGHT
                 • 1 - PREFIX
                 • 3 - DEFAULT GATEWAY
               • DHCPV6 STATELESS RA MESSAGES - ADDITIONAL INFORMATION
                 • 1 - DNS-SERVER
                 • 2 - DOMAIN-NAME
         • STATEFUL
           • DHCPv6 SERVER
             • ROUTER RA MESSAGES
               • INFORM HOSTS TO CONTACT A STATEFULL DHCPv6
               • EXCEPT : HOSTS OBTAINS DEFAULT GATEWAY FROM ROUTER RA MESSAGES
             • DHCPV6 STATEFULL RA MESSAGES - ADDITIONAL INFORMATION
               • HOSTS CONTACT A DHCPv6 SERVER TO ACQUIRE ALL THEIR IPV6 ADDRESSING INFORMATION
           • SERVER IS MANAGING THE ASSIGNMENT OF IPV6 ADDRESSES
       • THREE RA MESSAGE FLAGS
         • THE DECISION OF HOW CLIENT WILL OBTAIN GUA DEPENDE SETTINGS RA MESSAGE
         • ICMPvRA - MESSAGES INCLUDES THREE FLAGS
           • A FLAG
             • STATELESS TO CREATE AN IPV6 GUA
             • SLAAC ONLY
           • 0 FLAG
             • OTHER CONFIGURATION FLAG
             • STATELESS DHCPv6 SERVER
           • M FLAG
             • STATEFULL DHCPv6 SERVER
     • STATIC
       • R1(CONFIG-IF)# ADDRESS IPV6-ADDRESS/PREFIX LENGHT INTERFACE
   • IPV6 LLA ASSIGNMENT
     • DYNAMIC
       • THE TASK HOST AUTOMATICALLY CREATES AN LLA FILE WHEN THE INTERFACE IS ACTIVATED.
       • TWO METHODS
         • EUI-64
           • R1(CONFIG-IF)#IPV6 ADDRESS FE80::1 EUI-64
           • R1(CONFIG-IF)#IPV6 ENABLE
         • RANDOM VALUES
           • R1(CONFIG-IF)#IPV6 ADDRESS AUTOCONFIG
           • R1(CONFIG)#IPV6 ADDRESS DHCP
     • STATIC
       • R1(CONFIG-IF)#IPV6 ADDRESS FE80::1 LINK-LOCAL
     • ALWAYS IS DEFAULT GATEWAY
     • CAUTION : OPERATIONS SYSTEM WILL APPENDED WITH A "%" AND A NUMBER / IT IS USED BU THE OS ASSOCIATE LLA WITH A SPECIFIC INTERFACE
       • ZONE IP OR SCOPE ID