TCP 9901
Synopsis
- TCP port 9901 is assigned by IANA to ENRP (Endpoint Name Resolution Protocol), part of the IETF Reliable Server Pooling (RSerPool) architecture.
- Real implementations include the OpenSERPOOL/RSPLIB stack, whose ENRP servers listen on TCP 9901 in deployments and research testbeds.
- Outside ENRP/RSerPool implementations, there are no widely adopted mainstream applications known to use TCP 9901.
Observed activity
Last 30 days
Detailed chart