Hi All, I've been looking at providing NTP server addresses to my DHCPv6 clients using dnsmasq. 2 RFCs seem applicable, Simple NTP provision RFC4075 defines option 31 and known to dnsmasq as 'sntp-server'. RFC5908 defines a more flexible/complicated provision mechanism using option 56, known to dnsmasq as 'ntp-server'.
RFC5908 uses sub-options to option 56 defining a choice of sub-option 1 unicast NTP server address, sub-option 2 Multicast server address and sub-option 3 provision of a FQDN of the NTP server. Looking at the dnsmasq logs (I've not yet got to packet capture) and limited understanding of the code, I'm not convinced that dnsmasq's option 56 implementation understands the usage of sub-options. As ever, assuming I've mis-understood something here! Best regards, Kevin
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