Can you also add a dhcp-range for the ULA range, which deprecates it? Cheers,
Simon. On 27/10/2018 18:17, Christopher Martin wrote: > Greetings, > > Is it possible to prevent Dnsmasq from advertising a specific prefix via > router advertisements? > > Here's my situation. My ISP provides a dynamic IPv6 prefix which, using > wide-dhcpv6, ends up assigned to interface bond0. Dnsmasq then > advertises the prefix on bond0 out to the LAN. The various hosts on the > LAN use it, together with IPv6 privacy extensions, to generate global > IPv6 addresses. So far so good. > > For reference, my config is as follows: > > dhcp-range=::,constructor:bond0,ra-only,infinite > > Here's the problem. I also assign a ULA to bond0 (fd00:etc.). Dnsmasq > also advertises this prefix to the LAN, but I don't want it to, because > then the other hosts on the LAN end up generating addresses based on it, > including via IPv6 privacy extensions. Whereas what I want is to > manually assign each host its own specific, unchanging and easily > remembered ULA, which should also be the source IP used when connecting > to various services around the LAN. Too many ULAs cause problems. > > Is there a way to instruct Dnsmasq to _not_ advertise the ULA prefix, > but to continue advertising the global prefix from my ISP? Perhaps this > option already exists and I've simply missed it - apologies if that's > the case. > > Thanks very much, > > Christopher Martin > > _______________________________________________ > Dnsmasq-discuss mailing list > [email protected] > http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss > _______________________________________________ Dnsmasq-discuss mailing list [email protected] http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
