| RFC番号 | 略称 | 説  明 | 
  
    | 1661 | PPP | The Point-to-Point Protocol | 
  
    | 2516 | PPPoE | A Method for Transmitting PPP Over Ethernet | 
  
    | 2364 | PPP-AAL(PPPoA) | PPP Over AAL5 | 
  
    | 1994 | CHAP | PPP Challenge Handshake Authentication Protocol | 
  
    | 791 | IP(IPv4) | Internet Protocol | 
  
    | 792 | ICMP | Internet Control Message Protocol | 
  
    | 793 | TCP | Transmission Control Protocol | 
  
    | 768 | UDP | User Datagram Protocol | 
  
    | 2616 | HTTP/1.1 | Hypertext Transfer Protocol | 
  
    | 959 | FTP | File Transfer Protocol | 
  
    | 854 | TELNET | Telnet Protocol Specification | 
  
    | 1034-1035 | DOMAIN(DNS) | Domain Names | 
  
    | 1157 | SNMP | A Simple Network Management Protocol | 
  
    | 1631 | NAT | Network Address Translation:アドレス変換の方式。
プライベート・アドレスとグローバル・アドレス変換をすることで、
インターネットを利用できる端末の数を増やせる。 | 
  
    | 2131 | DHCP | Dynamic Host Configuration Protocol | 
  
    | 2396 | URI | Uniform Resource Identifiers | 
  
    | 2045-2049 | MIME | Multipurpose Internet Mail Extensions | 
  
    | 2251 | LDAP | Lightweight Directory Access Protocol (v3) | 
  
    | 2279 | UTF-8 | UTF-8 | 
  
    | 2289 | OTP | A One-Time Password System | 
  
    | 2401 | IPSec | Security Architecture for IP | 
  
    | 2460 | IPv6 | Internet Protocol, Version 6 | 
  
    | 2810-2813 | IRC | Internet Relay Chat | 
  
    | 2822 | MAIL | Internet Message Format | 
  
    | 3300 | - | Internet Official Protocol Standards |