TCP / IP Reference Page

Protocols according to layers:
 

Data Link Layer
Network Layer
Transport Layer
Session Layer
Application Layer
Routing
Tunneling
Security.

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.

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
IM PPpre 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