Type,Name,Reference
0,Reserved,[RFC6559]
1,PIM IPv4 Join/Prune,[RFC6559]
2,PIM IPv6 Join/Prune,[RFC6559]
3-32763,Unassigned Critical Options,
32764-32767,Experimental,[RFC6559]
32768-65531,Unassigned Non-Critical Options,
65532-65535,Experimental,[RFC6559]