Protocol aliases

In NAT or firewall IP protocol to match can be specified by it's number or text alias. Supported aliases can be found in /etc/protocols file or here.
 * 1) Internet (IP) protocols
 * 2) Updated from http://www.iana.org/assignments/protocol-numbers and other
 * 3) sources.
 * 4) New protocols will be added on request if they have been officially
 * 5) assigned by IANA and are not historical.
 * 6) If you need a huge list of used numbers please install the nmap package.
 * 1) If you need a huge list of used numbers please install the nmap package.

ip     0       IP              # internet protocol, pseudo protocol number icmp   1       ICMP            # internet control message protocol igmp   2       IGMP            # Internet Group Management ggp    3       GGP             # gateway-gateway protocol ipencap 4      IP-ENCAP        # IP encapsulated in IP (officially ``IP'') st     5       ST              # ST datagram mode tcp    6       TCP             # transmission control protocol egp    8       EGP             # exterior gateway protocol igp    9       IGP             # any private interior gateway (Cisco) pup    12      PUP             # PARC universal packet protocol udp    17      UDP             # user datagram protocol hmp    20      HMP             # host monitoring protocol xns-idp 22     XNS-IDP         # Xerox NS IDP rdp    27      RDP             # "reliable datagram" protocol iso-tp4 29     ISO-TP4         # ISO Transport Protocol class 4 [RFC905] xtp    36      XTP             # Xpress Transfer Protocol ddp    37      DDP             # Datagram Delivery Protocol idpr-cmtp 38   IDPR-CMTP       # IDPR Control Message Transport ipv6   41      IPv6            # Internet Protocol, version 6 ipv6-route 43  IPv6-Route      # Routing Header for IPv6 ipv6-frag 44   IPv6-Frag       # Fragment Header for IPv6 idrp   45      IDRP            # Inter-Domain Routing Protocol rsvp   46      RSVP            # Reservation Protocol gre    47      GRE             # General Routing Encapsulation esp    50      IPSEC-ESP       # Encap Security Payload [RFC2406] ah     51      IPSEC-AH        # Authentication Header [RFC2402] skip   57      SKIP            # SKIP ipv6-icmp 58   IPv6-ICMP       # ICMP for IPv6 ipv6-nonxt 59  IPv6-NoNxt      # No Next Header for IPv6 ipv6-opts 60   IPv6-Opts       # Destination Options for IPv6 rspf   73      RSPF CPHB       # Radio Shortest Path First (officially CPHB) vmtp   81      VMTP            # Versatile Message Transport eigrp  88      EIGRP           # Enhanced Interior Routing Protocol (Cisco) ospf   89      OSPFIGP         # Open Shortest Path First IGP ax.25  93      AX.25           # AX.25 frames ipip   94      IPIP            # IP-within-IP Encapsulation Protocol etherip 97     ETHERIP         # Ethernet-within-IP Encapsulation [RFC3378] encap  98      ENCAP           # Yet Another IP encapsulation [RFC1241] pim    103     PIM             # Protocol Independent Multicast ipcomp 108     IPCOMP          # IP Payload Compression Protocol vrrp   112     VRRP            # Virtual Router Redundancy Protocol l2tp   115     L2TP            # Layer Two Tunneling Protocol [RFC2661] isis   124     ISIS            # IS-IS over IPv4 sctp   132     SCTP            # Stream Control Transmission Protocol fc     133     FC              # Fibre Channel udplite 136    UDPLite         # UDP-Lite mpls-in-ip 137 MPLS-in-IP      # MPLS-in-IP [RFC4023] manet  138                     # MANET Protocols hip    139     HIP             # Host Identity Protocol
 * 1) hopopt 0      HOPOPT          # IPv6 Hop-by-Hop Option [RFC1883]
 * 1)       99                      # any private encryption scheme

[[Category: Firewall]