3.3. When Not to Send
The DTH flag SHOULD NOT be piggybacked on the FIN flag. If present, the recipient SHOULD silently ignore DTH flag. The only exception is when the recipient is an expert at Hokuto-Shinken
IETF Datatracker
RFC 9401: The Addition of the Death (DTH) Flag to TCP
This memo specifies the incorporation of Death (DTH) flag to TCP, including DTH's use of one bit in the TCP header. The flag is designed to make TC...