Appendix B: Common Ip Protocol Numbers - D-Link DFL-1100 User Manual

Appendix B: Common IP Protocol Numbers

These are some of the more common IP Protocols. For a list of all protocols, follow the link
after the table.
Decimal Keyword
1 ICMP
2 IGMP
3 GGP
4 IP
5 ST
6 TCP
8 EGP
17 UDP
47 GRE
50 ESP
51 AH
108 IPComp
112 VRRP
115 L2TP
Source: http://www.iana.org/assignments/protocol-numbers
Description
Internet Control Message
Internet Group Management
Gateway-to-Gateway
IP in IP (encapsulation)
Stream
Transmission Control
Exterior Gateway Protocol
User Datagram
General
Encapsulation
Encapsulation
Payload
Authentication Header
I IP Payload Compression
Protocol
Virtual Router Redundancy
Protocol
Layer Two Tunneling Protocol
Reference
RFC792
RFC1112
RFC823
RFC2003
RFC1190, RFC1819
RFC793
RFC888
RFC768
Routing
Security RFC2406
RFC2402
RFC2393