| Layer 7 Application Layer |
| AFP |
AppleTalk Filing Protocol |
| BOOTP |
Bootstrap Protocol |
| CIFS |
Common Internet File System |
| CIP |
Common Indexing Protocol |
| COPS |
Common Open Policy Service |
| DHCP |
Dynamic Host Configuration Protocol |
| DNS |
Domain Name System |
| Finger |
Finger |
| FTP |
File Transfer Protocol |
| FTP - Ctrl |
File Transfer Protocol - Control |
| FTP - Data |
File Transfer Protocol - Data Protocol |
| Gopher |
Gopher Protocol |
| HSRP |
Hot Standby Router Protocol |
| HTTP |
HyperText Transfer Protocol |
| HTTPS |
Secure HTTP Protocol |
| ICP |
Internet Cache Protocol |
| ICQ |
| IMAP |
Interactive Mail Access Protocol |
| IMAP3 |
Internet Message Access Protocol 3 |
| IMAPS |
Secure Internet Message Access Protocol |
| Kerberos |
Kerberos |
| LPD |
Line Printer Daemon |
| MGCP |
Media Gateway Control Protocol |
| MSN |
MSN Messenger Service |
| MSRDP |
Microsoft Remote Desktop Protocol |
| MSSQL |
Microsoft SQL Server |
| NCP |
NetWare Core Protocol |
| NFS |
Network File System |
| NNTP |
Network News Transfer Protocol |
| NTP |
Network Time Protocol |
| POP |
Post Office Protocol |
| POP3 |
Post Office Protocol Version 3 |
| POP3s |
POP3 over TLS/SSL |
| RADIUS |
Remote Authentication Dial-In User Service |
| RLOGIN |
Remote Login Protocol |
| RRP |
NSI Registry Registrar Protocol |
| RSH |
Remote Shell Protocol |
| RTCP |
Real-Time Transport Control Protocol |
| RTELNET |
Remote Telnet service |
| RTP |
Real-time Transport Protocol |
| RTP Audio |
Real-time Transport Protocol Audio |
| RTP Video |
Real-time Transport Protocol Video |
| RTSP |
Real Time Streaming Protocol |
| SAP |
Session Announcement Protocol |
| SIP |
Session Initiation Protocol |
| SLP |
Service Location Protocol |
| SMB |
Server Message Block |
| SMTP |
Simple Mail Transfer Protocol |
| SNA |
Systems Network Architecture |
| SNMP |
Simple Network Management Protocol |
| SOCKS |
Protocol for sessions traversal across firewall securely |
| SSH |
Secure Shell Protocol |
| Telnet |
Telnet |
| TELNET |
Virtual Terminal Connection Service |
| TFTP |
Trivial File Transfer Protocol |
| WhoIs |
WhoIs |
| WINS |
Windows Internet Name Service |
| Layer 6 Presentation Layer |
| NBNS |
NetBIOS Name Service |
| NBSSN |
NetBIOS Session Service |
| NCP |
NetWare Core Protocol |
| NetBIOS |
Network Basic Input/Output System |
| Layer 5 Session Layer |
| LDAP |
Lightweight Directory Access Protocol |
| LDAPS |
Secure Lightweight Directory Access Protocol |
| NCP |
NetWare Core Protocol |
| NetBEUI |
NetBIOS Extended User Interface |
| RPC |
Remote Procedure Call protocol |
| Layer 4 Transport Layer |
| H.225 |
H.225 |
| H.323 |
H.323 |
| NBDGM |
NetBIOS Datagram Service |
| NetBEUI |
NetBIOS Extended User Interface |
| PUP |
(Xerox) Parc Universal Packet |
| SCTP |
Stream Control Transmission Protocol |
| TCP |
Transmission Control Protocol |
| UDP |
User Datagram Protocol |
| Layer 3 Network Layer |
| AARP |
AppleTalk Address Resolution Protocol |
| AH |
Authentication Header |
| BGP |
Border Gateway Protocol |
| EGP |
Exterior Gateway Protocol |
| EIGRP |
Enhanced Interior Gateway Routing Protocol |
| ESP |
Encapsulated Security Payload |
| GRE |
Generic Routing Encapsulation |
| GTP |
GPRS Tunneling Protocol |
| ICMP |
Internet Control Message Protocol |
| ICMPv6 |
Internet Control Message Protocol Version 6 |
| IGMP |
Internet Group Management Protocol |
| IGRP |
Interior Gateway Routing Protocol |
| IP |
Internet Protocol |
| IP Fragment |
IP Fragment |
| IPv6 |
Internet Protocol version 6 |
| IPX |
Internet Packet Exchange |
| Mobile IP |
Mobile IP |
| MPLS |
Multi-Protocol Label Switching |
| OSPF |
Open Shortest Path First Routing Protocol |
| PIM |
Protocol Independent Multicast |
| PPPoE |
PPP over Ethernet |
| RIP |
Routing Information Protocol |
| RSVP |
Resource Reservation Protocol |
| STP |
Spanning Tree Protocol |
| VRRP |
Virtual Router Redundancy Protocol |
| Layer 2 Data Link Layer |
| ARP |
Address Resolution Protocol |
| CDP |
Cisco Discovery Protocol |
| CGMP |
Cisco Group Management Protocol |
| Ethernet SNAP |
Ethernet SubNetwork Access Protocol |
| EthernetII |
Ethernet Type 2 |
| IEEE 802.2 |
IEEE 802.2 |
| IEEE 802.3 |
| L2TP |
Layer Two Tunneling Protocol |
| PPP |
Point-to-Point Protocol |
| PPTP |
Point-to-Point Tunneling Protocol |
| RARP |
Reverse Address Resolution Protocol |
| SQL |
Structured Query Language |
| VLAN |
802.1Q VLAN |
| Layer 1 Physical Layer |
