Chapter 4 Flashcards - Sheet1
Two protocol options for the network layer
ipv4, ipv6
IP priority
data, in the form of IP packets, from the source host to the destination host
ip packet
An IP header, followed by the data encapsulated after the IP header, but specifically not including
any headers and trailers for layers below the network layer.
end-user computers in a TCP/IP network
hosts
Default Gateway AKA
Default router
Contents of an IP routing table
Address groupings (IP networks, IP subnets) and which interface leads to which
Size of the IP header
20 bytes
routing protocol
protocol used to exchange route information about the network with other routers
Bits in an IP address
32
DDN
Dotted-decimal notation. The format used for IP version 4 addresses, in which four decimal values are used, separated by
periods (dots).
Range of Class A address space
1.0.0.0 - 126.255.255.255
Range of Class B address space
128.0.0.0 - 191.255.255.255
Range of Class C address space
192.0.0.0 - 223.255.255.255
Range of Class D address space
224.0.0.0 - 239.255.255.255
Use for Class D address space
Multicasting
Range of Class E address space
240.0.0.0 - 255.255.255.255
Use for Class E address space
Multicasting
Network Address AKA
Network Number, Network ID
Term ‘classful ip network’ refers to
Any network of class a, b, or c
Goals of routing protocol
Learn & fill routing table with rout of each subet; select the best rout for a given destination; quickly remove /update routes when no longer valid; prevent routing loops
Routing Update
A generic reference to any routing protocol’s messages in which it sends routing information to a
neighbor.
RFC
Request for Comments. A document used as the primary means for communicating information
about the TCP/IP protocols
DNS
Domain Name System. An application layer protocol used throughout the Internet for translating
host names into their associated IP addresses
Host Name
The alphameric name of an IP host.
