I'm currently building a set of configurations to implement QOS over a voip network. I've identified the voip signaling traffic which uses H323 fast start - TCP 1720 using an access-list which works fine. In order to keep the config as tight as possible I'd like to use a custom protocol to identify tcp port 1720 instead of an access-list. The command below indicates that you can create your own custom protocols to apply to the match statement. Does anyone know how you create these custom protocols?
(config-cmap)#match protocol ?
arp IP ARP
bgp Border Gateway Protocol
bridge Bridging
bstun Block Serial Tunnel
cdp Cisco Discovery Protocol
citrix Citrix Traffic
compressedtcp Compressed TCP
cuseeme CU-SeeMe desktop video conference
custom-01 Custom protocol custom-01
custom-02 Custom protocol custom-02
custom-03 Custom protocol custom-03
custom-04 Custom protocol custom-04
custom-05 Custom protocol custom-05
