Thus spake Sriram, Kotikalapudi (Fed) via NANOG ([email protected]) on Tue, Aug 19, 2025 at 04:34:18PM +0000: > Question: Can a prefix be never routed on the Internet but used only one-way > for source address in IP packets? > > That is. a user owns an IP prefix. They never advertise a route to it in BGP > on the Internet. But they use the prefix solely for source address in IP > traffic from a source to a destination (sink). In this set up, the > destination server obviously cannot/doesn't return any acknowledgements etc. > to the source. Anyone aware if there is any such known application in use on > the Internet - even if it is rare? Thanks.
We see this for example in a generalized pattern like instrument -> DAQ system -> UDP firehose -> FPGAs -> compute, which is a completely unidirectional application workflow. Dale _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/[email protected]/message/T77UFNGAPPABARG4EQPJHOGDYEBCMO2B/
