| 5co-legacy (FiveCo’s Legacy Register Access Protocol) | EAP (Extensible Authentication Protocol) | LLC (Logical Link Control) | RTPproxy |
| 802.11 | EAPOL (Extensible Authentication Protocol over LAN) | LLMNR (Link-Local Multicast Name Resolution) | RTPS (Real-Time Publish Subscribe Wire Protocol) |
| A21 | ECHO | LMP (Link Management Protocol) | RX |
| ACAP (Application Configuration Access Protocol) | ECMP (Equal-Cost Multi-Path) | LON (LonWorks or Local Operating Network) | SABP (Service Area Broadcast Protocol) |
| ADP (Aruba Discovery Protocol) | EIGRP (Enhanced Interior Gateway Routing Protocol) | LTP (Licklider Transmission Protocol) | SAIA S-Bus / Ether-S-Bus |
| ADwin communication protocol | Elasticsearch | LWAPP (Lightweight Access Point Protocol) | SAP (Session Announcement Protocol) |
| ALC (Asynchronous Layered Coding) | ELCOM Communication Protocol | MANOLITO | SCTP (Stream Control Transmission Protocol) |
| ALLJOYN-ARDP (AllJoyn Reliable Datagram Protocol) | ENRP (Endpoint Handlespace Redundancy Protocol) | MDNS (Multicast Domain Name System) | SDO Protocol (Service Data Object Protocol) |
| ALLJOYN-NS (AllJoyn Name Service Protocol) | ENTTEC | MEMCACHE | SDP (Session Description Protocol) |
| AMS (Automation Message Specification) | ESP (Encapsulating Security Payload) | MGCP (Media Gateway Control Protocol) | SEBEK |
| AMT (Automatic Multicast Tunneling) | EtherCAT | MIH (Media Independent Handover) | SigComp (Signaling Compression) |
| ANSI C12.22 | Ethernet II | MiNT (Media independent Network Transport) | SIP (Session Initiation Protocol) |
| Any host internal protocol | ENIP / EtherNet/IP (Ethernet Industrial Protocol) | MIPv6 (Mobile IPv6) | SliMP3 Communication Protocol |
| ASAP (Aggregate Server Access Protocol) | FF protocol (FOUNDATION Fieldbus) | Mobile IP (Mobile Internet Protocol) | SMB (Server Message Block) |
| ASF (Alert Standard Forum / Alert Standard Format) | FIND (Find Identification of Network Devices) | Modbus | SMTP (Simple Mail Transfer Protocol) |
| Assa Abloy R3 Protocol | FTP (File Transfer Protocol) | MPLS (Multiprotocol Label Switching) | SNMP (Simple Network Management Protocol) |
| ASTERIX (All Purpose Structured Eurocontrol Surveillance Information Exchange) | Geneve (Generic Network Virtualization Encapsulation) | MQTT (MQ Telemetry Transport Protocol) | SOAP (Simple Object Access Protocol) |
| ATH (Apache Tribes Heartbeat Protocol) | GPRS-NS (General Packet Radio Service – Network Service) | MSMMS (Microsoft Media Server) | Socks Protocol (Socket Secure Protocol) |
| Auto-RP (Cisco Auto-Rendezvous Point) | GQUIC (Google Quick UDP Internet Connections) | MSRPC (Microsoft Remote Procedure Call) | SRVLOC (Service Location Protocol) |
| AVTP (Audio Video Transport Protocol) / IEEE 1722 AVTP | GRE (Generic Routing Encapsulation) | MySQL | SSDP (Simple Service Discovery Protocol) |
| AX/4000 | GSMTAP | Nano (Nano Cryptocurrency Protocol) | SSHv2 (Secure Shell) |
| AYIYA (Anything In Anything) | GTP (GPRS Tunneling Protocol) / GPRS (General Packet Radio Service) | NAT-PMP (NAT Port Mapping Protocol) | SSL (Secure Sockets Layer) |
| B.A.T.M.A.N. GW (Better Approach To Mobile Adhoc Networking) | GTP Prime (GPRS Tunneling Protocol Prime) | NBDS (NetBIOS Datagram Service) | SSLv2 |
| BACnet (Building Automation and Control Network) | GTPv2 (GPRS Tunneling Protocol V2) / GPRS V2 (General Packet Radio Service V2) | NBNS (NetBIOS Name Service) | SSLv3 |
| BAT_BATMAN | H.225.0 | NDPS (Novell Distribution Print System) | STREAMDISCOVER |
| BAT_GW | H.248 Megaco (Gateway Control Protocol) | NFS (Network File System) | STUN (Session Traversal Utilities for Network Address Translation) |
| BAT_VIS | HART_IP (Highway Addressable Remote Transducer over IP) | NTP (Network Time Protocol) | Syslog |
| BFD Control (Bidirectional Forwarding Detection) | HCrt (Hotline Command-Response Transaction protocol) | NXP 802.15.4 SNIFFER | TACACS (Terminal Access Controller Access-Control System) |
| BFD Echo (Bidirectional Forwarding Detection) | HICP (Host IP Configuration Protocol) | OMRON | TAPA (Trapeze Access Point Access Protocol) |
| BitTorrent | HIP (Host Identity Protocol) | openSAFETY over UDP | TC-NV (TwinCAT Network Vars) / EtherCAT of NV Type |
| BitTorrent Tracker | HiQnet | OpenVPN | TCP (Transmission Control Protocol) |
| BJNP (Canon BubbleJet Network Protocol) | HTTP (Hypertext Transfer Protocol) | Pathport Protocol | Telnet |
| BSSGP (BSS GPRS protocol) | HTTPS (Hypertext Transfer Protocol Secure) | PCP (Port Control Protocol) | TETRA (Terrestrial Trunked Radio) |
| BT-DHT (BitTorrent Distributed Hash Table Protocol) | IAPP (Inter-Access Point Protocol) | PFCP (Packet Forwarding Control Protocol) | TFTP (Trivial File Transfer Protocol) |
| CAN (Controller Area Network) | IAX2 (Inter-Asterisk eXchange) | PKTC (PacketCable) | TIME |
| CAN-ETH (Controller Area Network over Ethernet) | ICAP (Internet Content Adaptation Protocol) | PNIO (PROFINET/IO) | TIPC (Transparent Inter Process Communication) |
| CAPWAP (Control And Provisioning of Wireless Access Points) | ICMP (Internet Control Message Protocol) | PN-PTCP (PROFINET Precision Time Control Protocol) | TLSv1.2 (Transport Layer Security) |
| CBSP (Cell Broadcast Service Protocol) | ICMPv6 (Internet Control Message Protocol Version 6) | PN-RT (PROFINET Real-Time) | TPCP (Transparent Proxy Cache Protocol) |
| Chargen (Character Generator Protocol) | ICP (Internet Cache Protocol) | POP (Post Office Protocol) | TPKT (ISO Transport Service on top of the TCP) |
| CIGI (Common Image Generator Interface) | IDN (ILDA Digital Network Protocol) | Portmap | TP-Link Smart Home Protocol |
| CIP I/O (Common Industrial Protocol) | IDPR (Inter-Domain Policy Routing Protocol) | POWERLINK/UDP | TPM (Trusted Platform Module) |
| CLASSIC-STUN | IEC 60870-5-104 (International Electrotechnical Commission 60870 standards – Transmission Protocols – Network access for IEC 60870-5-101 using standard transport profiles) | PPP (Point-to-Point) | TS2 (Teamspeak2 Protocol) |
| CLDAP (Connection-less Lightweight Directory Access Protocol) | IEC 60870-5-101/104 (International Electrotechnical Commission 60870 standards – Transmission Protocols – companion standards especially for basic telecontrol tasks / Network access for IEC 60870-5-101 using standard transport profiles) | PTP/IP (Picture Transfer Protocol over Transmission Control Protocol/Internet Protocol) | TZSP (TaZmen Sniffer Protocol) |
| CN/IP (Component Network over IP) | IEEE 802.15.4 (Institute of Electrical and Electronics Engineers Standard for Low-Rate Wireless Networks) | PTPv2 (Precision Time Protocol) | UAUDP (Universal Alcatel/UDP Encapsulation Protocol) |
| CoAP (Constrained Application Protocol) | IMAP (Internet Message Access Protocol) | QNX network via the FLEET protocol / FLEET protocol for QNX native networking | UDP (User Datagram Protocol) |
| collectd network data / plug-in / protocol | InfiniBand | QUAKE | ULP (User Plane Location) |
| CPHB (Computer Protocol Heart Beat) | IPA protocol (the ip.access „GSM over IP” protocol) | QUAKE2 | VICP (LeCroy’s Versatile Instrument Control Protocol) |
| CUPS (Common UNIX Printing System) | IPMI (Intelligent Platform Management Interface) | QUAKE3 | VITA 49 radio transport |
| CVSPSERVER / CVS pserver (Concurrent Versions System Password Server Protocol) | IPv4 | QUAKEWORLD | Vuze-DHT (Distributed Hash Table) |
| DAYTIME | IPv6 (Teredo IPv6 over UDP Tunneling) | QUIC (Quick UDP Internet Connections) | VxLAN (Virtual eXtensible Local Area Network) |
| DB-LSP-DISC (Dropbox LAN Sync Discovery) | IPVS (IP Virtual Server) | RADIUS | Who |
| DCC (Distributed Checksum Clearinghouse) | IPX (Internetwork Packet Exchange) | RakNet | WireGuard |
| DHCP (Dynamic Host Configuration Protocol) / BOOTP (Bootstrap Protocol) | ISAKMP (Internet Security Association and Key Management Protocol) | RDT (Real Data Transport) | WLCCP (Cisco Wireless LAN Context Control Protocol) |
| DIS (Distributed Interactive Simulation) | ISO Internet Protocol (The International Organization for Standardization) | RDP-UDP (UDP Remote Desktop Protocol) | WOW (World of Warcraft) |
| DMP (Direct Message Protocol) | KDSP (Kismet Drone/Server Protocol) | RIPv1 (Routing Information Protocol) | WOWW (World of Warcraft World) |
| DNPv0 (DOF Network Protocol) | KDP (Kontiki Delivery Protocol) | RIPng (Routing Information Protocol Next Generation) | WSP (Wireless Session Protocol) |
| DNPv3 | Kerberos / KRB5 | RMCP (Remote Management and Control Protocol) | WTLS (Wireless Transport Layer Security) |
| DNPv14 | KINK (Kerberized Internet Negotiation of Keys) | RMCP+ (Remote Management and Control Protocol with stronger authentication) | WTP (Wireless Transaction Protocol) |
| DNPv79 | kNet | RMCP Security-extension protocol (Remote Management and Control Security-extension protocol) | X11 (X Window System) |
| DNPv88 | KNXnet/IP | RPC (Remote Procedure Call Protocol) | XDMCP (X Display Manager Control Protocol) |
| DNS (Domain Name System) | KPASSWD | RRoCE (Routable RDMA over Converged Ethernet) | XTACACS (Extended Terminal Access Controller Access-Control System) |
| DoIP | L2TP (Layer 2 Tunneling Protocol) | RSIP (Realm Specific IP) | ZigBee SCoP (Secured Connection Protocol) |
| DPNET (DirectPlay 8 Protocol) | L2TPv3 | RSL (Radio Signalling Link) | |
| DTLS (Datagram Transport Layer Security) | LISP (Locator/ID Separation Protocol) | RSVP (Resource ReserVation Protocol) | |
