Feature,Definition,Reference
0x01...,Version 1 Symmetrically Encrypted and Integrity Protected Data packet,"[RFC9580, Section 5.13.1]"
0x02...,Reserved,[RFC9580]
0x04...,Reserved,[RFC9580]
0x08...,Version 2 Symmetrically Encrypted and Integrity Protected Data packet,"[RFC9580, Section 5.13.2]"