On Tue, Feb 12, 2019 at 03:05:28PM +0000, Nick Hilliard wrote: > Matthew Walster wrote on 12/02/2019 14:50: > > For initial deployment, this can seem attractive, but remember that one > > of the benefits an ROA gives is specifying the maximum prefix length. > > This means that someone can't hijack a /23 with a /24. > > they can if they forge the source ASN. RPKI helps against misconfigs rather > than intentional hijackings. >
Only if you specify a a minlen of /23 and a maxlen of /24 and you only announce a /23. Which you should not.