TAILIEUCHUNG - Part 4: Addressing Resolution & IP Routing

IP best-effort packet-delivery service: IP addressing and packet forwarding with datagram mode. Multiplexing accomplished by transport protocols (TCP, UDP). And how to build on top of the narrow waist: Domain Name System (DNS) for resolution between name and addresses, Dynamic host configuration protocol-DHCP for IP configurations. | PITITHCM- Computer Network dept Computer Network Part 4. Addressing Resolution IP Routing ARP R-ARP DHCP DNS IP Routing Concepts terminologies - Static dynamic routing - Routing algorithms Distance vector Link-state - Routing protocols RIP OSPF IP Infrastructure Services IP best-effort packet-delivery service - IP addressing and packet forwarding with datagram mode. - Multiplexing accomplished by transport protocols TCP UDP And how to build on top of the narrow waist - Domain Name System DNS for resolution between name and addresses - Dynamic host configuration protocol-DHCP for IP configurations - build on below of the narrow waist ARP for Destination MAC address Glue ARP R-ARP DHCP DNS ICMP Security with end-system essential devices protection and data privacy NAT firewalls And how to get the traffic from internal to external - Internet routing Intra-domain and inter-domain Three Kinds of Identifiers for Communication Host name . - Mnemonic name appreciated by humans - Provides little if any information about location - Hierarchical variable of alpha-numeric characters IP address . - Numerical address appreciated by routers host - Related to host s current location in the topology - Hierarchical name space of 32 bits MAC address . 00-15-C5-49-04-A9 - Numerical address appreciated within local area network - Unique hard-coded in the adapter when it is built - Flat name space of 48 bits Mapping Between Identifiers Domain Name System DNS - Given a host name provide the IP address - Given an IP address provide the host name Dynamic Host Configuration Protocol DHCP - Given a MAC address assign a unique IP address - Tell host other stuff about the Local Area Network - IP Address - Network Mask - Default Router To automate the boot-strapping process Address Resolution Protocol ARP - Given an IP address provide the MAC address - To enable communication within the Local Area Network Address Resolution Protocol ARP In order for devices to

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