ipExternProtocal

The protocol number field in the IP header used to indicate
the higher layer protocol as specified in RFC 1700. A value 
value of 0 matches every IP packet. 
              
For example :
0 is IP, 1 is ICMP, 2 is IGMP, 4 is IP in IP encapsulation,
6 is TCP, 9 is IGRP, 17 is UDP, 47 is GRE, 50 is ESP, 51 is AH,
88 is EIGRP, 89 is OSPF, 94 is KA9Q/NOS compatible IP over IP,
103 is PIMv2, 108 is PCP.

MIB

DCN-MIB

OID

.1.3.6.1.4.1.6339.100.10.1.3.4.1.5

Type

column

Access

readwrite

Status

current

Parent

ipExternAclEntry