When enable netflow on the router, need to put destination netflow collection ip address and port, could I put a network portion with subnet instead of specific ip address? Like:
ip flow-export destination 192.168.10.0 9991
ip flow-export destination 192.168.10.10 9991
until some recent releases on some platform netflow export could be configured for a single host.
Some new releases have introduced the support of two hosts.
So I think the answer is that you need to specify the host ip address.
However, it could be interesting to think about using a directed broadcast destination address for example
but I don't think it is supported it would be a way to export to multiple hosts in the same subnet.
This could be possible because flow export are UDP unidirectional flows from router to collector device
Hope to help