Security Command Reference
Page 92  7705 SAR OS System Management Guide
Table 6:  IP Protocol IDs and Descriptions 
Protocol Protocol ID Description
icmp 1 Internet Control Message       
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
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