| Value | Meaning |
|---|---|
| Last0 | Last payload |
| Kemac1 | Key data transport payload |
| Pke2 | Envelope data payload |
| Dh3 | DH data payload |
| Sign4 | Signature payload |
| T5 | Timestamp payload |
| Id6 | ID payload |
| Cert7 | Certificate Payload |
| Chash8 | Cert hash payload |
| V9 | Verification message payload |
| Sp10 | Security Policy payload |
| Rand11 | RAND payload |
| Err12 | Error payload |
| KeyData20 | Key data sub-payload |
| GenExt21 | General Extension Payload |
Different MIKEY Payload types.