TCP/IP Flashcards
TCP / UDP ports
65,536 possible
Well-Known Ports
AKA Reserved Ports
1 - 1023
Registered Ports
1024 - 49151
Dynamic Ports
AKA Private Ports
49152 - 65535
TCP
Transmission Control Protocol
Connection-oriented protocol
Connection-Oriented Protocol
Establishes network connection
Manages data transfer
Verifies delivery of data
Supports error checking / recovering lost data
SYN
Synchronizing packet
Sent by sending host to initiate TCP
SYN ACK
Synchronizing Acknowledgement packet
Sent by receiving host to notify sending host that packet was received
ACK
Acknowledgement packet
Sending host sends acknowledgement of acknowledgement to receiving host
UDP
User Datagram Protocol
Connectionless protocol
Connectionless Protocol
Packets transported over network without establishing a connection or verifying the packet arrived at destination
IP
Internet Protocol
Logical address containing both network and host addresses
ARP
Address Resolution Protocol
Resolves IP address to a hardware address
ICMP
Internet Control Message Protocol
Control flow of data, report errors, perform diagnostics
IGMP
Internet Group Management Protocol
Used for multicasting
Multicasting
One host sends data to many destination hosts
ARIN
American Registry for Internet Numbers
Assigns home IP address for a network
Subnet Mask
Identifies which bits in IP address represent the network
CIDR
Classless Interdomain Routing
NAT
Network Address Translation
Private address for host is translated to a public address for routing over the internet.
PAT
Port Address Translation
Port number tracked during a NAT connection
Port Forwarding
AKA Port Mapping
Packets from one IP address / port number are redirected to another.
MSB
Most Significant Bit Position
Classful Networks
IP addresses and subnets are within the same network.
Supernetting
Multiple networks can be specified by one subnet mask.
Two or more classful networks grouped together.
