----- On Aug 12, 2021, at 10:38 AM, Amir Herzberg amir.lists at gmail.com wrote: Hi, > I don't think A would be right to filter these packets to 10.0.1.0/24; A has announced > 10.0.0.0/16 so should route to that (entire) prefix, or A is misleading its peers. This is what it boils down to. If you don't want to route it, don't advertise it. Thanks, Sabri