CCNA - Capitulo 11.1

CCNA - Capitulo 11.1

1. ADDRESSING IPV4

   • IPv4 TRANSMISSION TYPE
     • UNICAST
       • 1.1.1.1 A 223.255.255.255
         • WHITHIN THIS RANGE ARE MANY ADDRESSES ARE RESERVED FOR SPECIAL PURPOSE
       • ONE TO ONE COMMUNICATIONS
       • SOURCE
         • A UNICAST PACKET HAS A DESTINATION IP THAT IS A UNICAST ADDRESS
           • SINGLE RECEPIENT
         • CAN ONLY BE UNICAST.
       • DESTINATION
         • UNICAST , BROADCAST OR MULTICAST
     • MULTICAST
       • RANGE : 224.0.0.0. A 239.255.255.255
         • HOSTS RECEIVE PARTICULART MULTICAST PACKETS
           • ARE CALLED MULTICATS CLIENTS
       • TRANSMISSION REDUCES TRAFFIC BY ALLOWING SEND A SINGLE PACKET TO A SELECTED SET OF OF HOSTS
         • SUBSCRIBE A MULTICAST GROUP
       • ROUTING PROTOCOLS SUCH AS OSPF USE MULTICAST TRANSMISSIONS
         • ONLY DEVICES ENABLE WITH OSPF WILL PROCESS THESE PACE WITH 224.0.0.5
     • BROADCAST
       • BROADCAST DIRECTED
         • (CONFIG)#NO IP DIRECTED-BROADCASTS
           • ARE TURNED OFF BU DEFAULT WITH CISCI IOS RELEASE 12.0
         • 172.16.4.255
         • EVEN IF THE SENDER IS ON A DIFFERENT NETWORK.
         • IT CAN BE ROUTED TO THE DESTINATION NETWORK.
           • THROUGH DHCP RELAY
       • BROADCAST LIMITED
         • SENT TO ALL HOSTS ON A SPECIFIC NETWORK
         • IT'S BROADCAST RESTRICTED TO.
           • THE LOCAL NETWORK
         • 255.255.255.255
         • IT IS A TRANSMISSION SENT TO ALL HOSTS ON A SPECIFIC NETWORK
       • ALL 1 BITS IN THE HOST PORTION
       • SENDING AND PROCESSED BY ALL DEVICES IN THE SAME BROADCAST DOMAIN
       • WHAT IS BROADCAST DOMAIN ?
         • IDENTIFIES ALL HOSTS ON THE SAME NETWORK SEGMENT
     • AFFECT THE DESTINATION IPV4 ADDRESSES