Similar to RTP_Control_Protocol

CAST-256

Comma-separated values

Common Management Information Protocol

Datagram Congestion Control Protocol

Direct Client-to-Client

Diameter (protocol)

Endpoint Handlespace Redundancy Protocol

Exchange ActiveSync

Interactive Connectivity Establishment

Internationalized Resource Identifier

Internet Control Message Protocol

ICMPv6

IPsec

Character Generator Protocol

Constrained Application Protocol

Daytime Protocol

Dynamic Host Configuration Protocol

DHCPv6

Discard Protocol

DNS over HTTPS

Domain Name System

Echo Protocol

File Transfer Protocol

Gopher (protocol)

HTTP/2

HTTP/3

IRC

Lightweight Directory Access Protocol