Value,RAND Role,Reference
0,Reserved,[RFC6043]
1,Initiator (RANDRi),[RFC6043]
2,Responder (RANDRr),[RFC6043]
3,KMS (RANDRkms),[RFC6043]
4-239,Unassigned,
240-254,Reserved for Private Use,[RFC6043]
255,Reserved,[RFC6043]