Page 370 7750 SR OS Router Configuration Guide
igmp 2 Internet Group Management
ip 4 IP in IP (encapsulation)
tcp 6 Transmission Control
egp 8 Exterior Gateway Protocol
igp 9 any private interior gateway (used by Cisco for their IGRP)
udp 17 User Datagram
rdp 27 Reliable Data Protocol
ipv6 41 Ipv6
ipv6-route 43 Routing Header for IPv6
ipv6-frag 44 Fragment Header for IPv6
idrp 45 Inter-Domain Routing Protocol
rsvp 46 Reservation Protocol
gre 47 General Routing Encapsulation
ipv6-icmp 58 ICMP for IPv6
ipv6-no-nxt 59 No Next Header for IPv6
ipv6-opts 60 Destination Options for IPv6
iso-ip 80 ISO Internet Protocol
eigrp 88 EIGRP
ospf-igp 89 OSPFIGP
ether-ip 97 Ethernet-within-IP Encapsulation
encap 98 Encapsulation Header
pnni 102 PNNI over IP
pim 103 Protocol Independent Multicast
vrrp 112 Virtual Router Redundancy Protocol
l2tp 115 Layer Two Tunneling Protocol
stp 118 Schedule Transfer Protocol
ptp 123 Performance Transparency Protocol
isis 124 ISIS over IPv4
crtp 126 Combat Radio Transport Protocol
Protocol Protocol ID Description