Thank you also for the reply Francis. Is this something I should ask about on the iPXE dev list?
-----Original Message----- From: Francis Dupont [mailto:[email protected]] Sent: Friday, January 06, 2017 1:17 AM To: Attila Szalay <[email protected]> Cc: Ledochowski, Roy <[email protected]>; Klaus Steden <[email protected]>; [email protected] Subject: Re: [Kea-users] Help! Kea 1.1 sends unicast, breaks iPXE Attila Szalay writes: > I'm not around my machine, but if I remember correctly there is a flag > in the dhcp request that mandate using the broadcast in the answer. > Without that flag the unicast is favored. So, the question is if that > flag is set by the iPXE client? If yes, then it is definitely a bug in > kea, otherwise I'm not sure. => there is such a flag (it is the only defined flag cf RFC 2131 figure 2 (format of flags) and section 4.1). Note that if it is set to 1 the server or relay is required to use IP and link-layer broadcast, but not the opposite (i.e., 0 does not imply unicast). The ISC DHCP client built in standard way always sets this to 0 (*), ISC DHCP relay and server follow it for bootp and dhcp, Kea server too (cf Dhcpv4Srv::adjustRemoteAddr code). (*) this suggests this flag is rarely set by clients in queries. Regards Francis Dupont <[email protected]> _______________________________________________ Kea-users mailing list [email protected] https://lists.isc.org/mailman/listinfo/kea-users
