CCNA - Capitulo 12.4

CCNA - Capitulo 12.4

1. IPV6 ADDRESS TYPES

   • MULTICAST - IPV6
     • FF00 :: /8
       • IS RECEIVED AND PROCESSED BY ALL IPV6 INTERFACES ON THE LINK . SAME EFFECT BROADCAST IPV4
     • TYPES
       • WELL KNOW
         • ALL-NODES MULTICAST GROUP
           • GROUP THAT ALL IPV6-ENABLE DEVICES JOIN
           • FF02 :: 1
           • NDP
             • NEIGHBOR ADVERTISEMENT
             • NEIGHBOR SOLICITATION
         • ALL-ROUTERS MULTICAST GROUP
           • GROUP THAT ALL IPV6 ROUTERS JOIN
           • FF02 :: 2
           • A ROUTER BECOMES A MEMBER OF THIS GROUP WHEN IT IS ENABLED AS AN IPV6 ROUTER
             • WITH THE IPV6 UNICAST-ROUTING CONFIGURATION COMMAND.
               • R1(CONFIG)IPV6 UNICAST-ROUTING
           • NDP
             • ROUTER ADVERTISEMENT (RA)
             • ROUTER SOLICITATION (RS)
       • SOLICITED NODE
         • IT IS MAPPED TO A SPECIAL ETHERNET MULTICAST ADDRESS.
     • EX USED ? DHCPV6

2. INTERFACE ID

   • 2) RANDOMLY GENERATED
     • DUPLICATE ADDRESS DETECTION (DAD)
       • ENSURES THE UNIQUENESS
     • WINDOWS USED
     • 2001 : db8 : acad : 1 : 50a5 : 8a35 : a5bb : 66e1
   • 1) EUI-64 PROCESS / EUI-64 MODIFIED
     • HOW IT WORKS ?
       • THE PROCESS CONVERTS A 48-BIT MAC INTO A 64-BIT IDENTIFIER BY INSERTING THE BYTES FF:FE IN THE MIDDLE AND FLIPPING THE UNIVERSAL/LOCAL BIT (BIT 6).
     • THREE PARTS
       • ORGANIZATIONALLY UNIQUE IDENTIFIER (OUI )- 24 bit - CLIENT MAC
         • EXTENDED UNIQUE IDENTIFIER (VENDOR)
         • OBS : 7th BIT SI REVERSED
           • 0 IT BECOMES A 1 AND VICE VERSA
       • THE INSERTED 16-BIT VALUE
         • fffe
       • 24 bit DEVICE IDENTIFIER FROM THE MAC CLIENTE
     • HOW DO I CHECK IN WINDOWS?
       • IPCONFIG /ALL
         • 2001 : db8 : acad : 1 : fc99 :47ff:fe75:cee0
   • ENSURE THE UNIQUENESS OF ANY IPV6 ?
     • CLIENT MAY USE A PROCESS KNOW AS
       • DUPLICATE ADDRESS DETECTION (DAD)
   • SLAAC AND DHCP SLAAC