Hi Grzegorz, On 1/30/22 11:48, Grzegorz Szpetkowski wrote: > In addtion of preventing unwanted packets (from other interfaces) > being received between socket and bind, I've found another one. If > desired usage of the raw packet socket is egress-only, meaning user > doesn't want to receive any packet, then such a socket created with > protocol = 0 argument will save both CPU/memory resources of the > process, since Rx protocol handler won't be invoked upon reception of > packets and the associated Rx socket buffer won't be populated, > regardless of ingress traffic load This can be especially useful in > embedded applications. > > Not sure if this can also be added to man, though. I'd say yes. I'll merge the other patch, and them you can suggest a new one with this information. Thanks, Alex -- Alejandro Colomar Linux man-pages comaintainer; https://www.kernel.org/doc/man-pages/ http://www.alejandro-colomar.es/