Cisco Filter Ip Protocol Number

1.3.6.1.4.1.9.9.474.1.1.3.1.2

This object identifies the internet protocol number in the packets. These IP protocol numbers are defined in the Network Group Request For Comments(RFC) documents. For example, Cisco commonly used protocol includes: 1 - Internet Control Message Protocol (ICMP) 2 - Internet Gateway Message Protocol (IGMP) 4 - IP in IP tunneling 6 - Transmission Control Protocol (TCP) 9 - Cisco's IGRP routing protocol (IGRP) 17 - User Datagram Protocol (UDP) 47 - Cisco's GRE tunneling (GRE) 50 - Encapsulation Security Payload 51 - Authentication Header Protocol 88 - Cisco's EIGRP routing protocol 89 - OSPF routing protocol 94 - KA9Q NOS compatible IP over IP tunneling 103 - Protocol Independent Multicast 108 - Payload Compression Protocol.