
Protocol Types
Protocol Number in Firewall Filters
| Number | Keyword | Protocol | Reference | 
| 119 | SRP | SpectraLink Radio Protocol | [Hamilton] | 
| 120 | UTI | UTI | [Lothberg] | 
| 121 | SMP | SMP | [Ekblad] | 
| 122 | SM | SM | [Crowcroft] | 
| 123 | PTP | Performance Transparency Protocol | [Welzl] | 
| 124 | ISIS over IPv4 | 
 | [Przygienda] | 
| 125 | FIRE | 
 | [Partridge] | 
| 126 | CRTP | Combat Radio Transport Protocol | [Sautter] | 
| 127 | CRUDP | Combat Radio User Datagram | [Sautter] | 
| 128 | SSCOPMCE | 
 | [Waber] | 
| 129 | IPLT | 
 | [Hollbach] | 
| 130 | SPS | Secure Packet Shield | [McIntosh] | 
| 131 | PIPE | Private IP Encapsulation within IP | [Petri] | 
| 132 | SCTP | Stream Control Transmission Protocol | [Stewart] | 
| 133 | FC | Fibre Channel | [Rajagopal] | 
| 134 | 
 | [RFC3175] | |
| 
 | Unassigned | [IANA] | |
| 255 | 
 | Reserved | [IANA] | 
| CMG Router - Release 2.7 | 
