On Fri, Feb 25, 2022 at 08:36:06AM +0100, Marco Davids (SIDN) via Linuxptp-users wrote:
> I created a unicast setup. It was an experiment to verify if I could make my > PTP-service more resilient against 'rogue' masters on the same VLAN that > (falsy) claim to be the best master. A back actor on the LAN can easily spoof your unicast GM soruce address, so using unicast is does not mitigate that security risk. > But I was wondering; isn't it a bit strange for ptp4l to pick up multicast > packets, even when it is configured to do unicast? If the best master is multicast, then why not use it? > Is this a bug or a feature? (Take your pick ;^) It would be more development work to actively avoid multicast. This would require changes to the very core of the program. It would not be impossible, but for me there would need to be a strong motivation to justify the effort. Thanks, Richard _______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
