The Defense Advance Research Projects Agency (DARPA) originally developed Transmission Control Protocol/Internet Protocol (TCP/IP)

The Defense Advance Research Projects Agency (DARPA) originally developed Transmission Control Protocol/Internet Protocol (TCP/IP)

The Defense Advance Research Projects Agency (DARPA) originally developed Transmission Control Protocol/Internet Protocol (TCP/IP) to interconnect various defense department computer networks. The Internet, an international Wide Area Network, uses TCP/IP to connect government and educational institutions across the world. TCP/IP is also in widespread use on commercial and private networks. The TCP/IP suite includes the following protocols:

Physical

Data Link Layer
ARP/RARP: Address Resolution Protocol/Reverse Address
DCAP: Data Link Switching Client Access Protocol

Network Layer
DHCP: Dynamic Host Configuration Protocol
DVMRP :Distance Vector Multicast Routing Protocol
ICMP/ICMPv6: Internet Control Message Protocol
IGMP: Internet Group Management Protocol
IP: Internet Protocol version 4
IPv6: Internet Protocol version 6
MARS: Multicast Address Resolution Server
PIM: Protocol Independent Multicast-Sparse Mode (PIM-SM)
RIP2: Routing Information Protocol
RIPng: for IPv6 Routing Information Protocol for IPv6
RSVP: Resource ReSerVation setup Protocol
VRRP: Virtual Router Redundancy Protocol

Transport Layer
ISTP:
Mobile: IP Mobile IP Protocol
RUDP: Reliable UDP
TALI: Transport Adapter Layer Interface
TCP: Transmission Control Protocol
UDP: User Datagram Protocol
Van: Jacobson compressed TCP
XOT: X.25 over TCP

Session Layer
BGMP: Border Gateway Multicast Protocol
Diameter:
DIS: Distributed Interactive Simulation
DNS: Domain Name Service
ISAKMP/IKE: Internet Security Association and Key Management Protocol and
Internet Key Exchange Protocol
iSCSI: Small Computer Systems Interface
LDAP: Lightweight Directory Access Protocol
MZAP: Multicast-Scope Zone Announcement Protocol
NetBIOS/IP: NetBIOS/IP for TCP/IP Environment

Application Layer
COPS: Common Open Policy Service
FANP: Flow Attribute Notification Protocol
Finger: User Information Protocol
FTP: File Transfer Protocol
HTTP: Hypertext Transfer Protocol
IMAP4: Internet Message Access Protocol rev 4
IMPPpre/IMPPmes: Instant Messaging and Presence Protocols
IPDC: IP Device Control
IRC: ·Internet Relay Chat Protocol
ISAKMP: Internet Message Access Protocol version 4rev1
ISP:
NTP: Network Time Protocol
POP3: Post Office Protocol version 3
Radius: Remote Authentication Dial In User Service
RLOGIN: Remote Login
RTSP: Real-time Streaming Protocol
SCTP: Stream Control Transmision Protocol
S-HTTP: Secure Hypertext Transfer Protocol
SLP: Service Location Protocol
SMTP: Simple Mail Transfer Protocol
SNMP: Simple Network Management Protocol
SOCKS: Socket Secure (Server)
TACACS+: Terminal Access Controller Access Control System
TELNET: TCP/IP Terminal Emulation Protocol
TFTP: Trivial File Transfer Protocol
WCCP: Web Cache Coordination Protocol
X-Window: X Window

Routing
BGP-4: Border Gateway Protocol
EGP: Exterior Gateway Protocol
EIGRP: Enhanced Interior Gateway Routing Protocol
HSRP: Cisco Hot Standby Router Protocol
IGRP: Interior Gateway Routing
NARP: NBMA Address Resolution Protocol
NHRP: Next Hop Resolution Protocol
OSPF: Open Shortest Path First
TRIP: Telephony Routing over IP

Tunneling
ATMP: Ascend Tunnel Management Protocol
L2F: The Layer 2 Forwarding Protocol
L2TP: Layer 2 Tunneling Protocol
PPTP: Point to Point Tunneling Protocol

Security
AH: Authentication Header
ESP: Encapsulating Security Payload
TLS: Transport Layer Security Protocol The

TCP/IP suite is illustrated here in relation to the OSI model:
Click the map to see more details.