On 01/11/12 12:59, Gene Czarcinski wrote: > On 10/31/2012 04:41 PM, Gene Czarcinski wrote: >> Instead of running both radvd and dnsmasq, I would like to run only >> dnsmasq and have it do what is now being done by radvd. >> >> This is for libvirt so there are some specifics which could help. >> >> 1. There will be one and only one interface for an instance of dnsmasq. >> >> 2. Currently (at least with some patches I have created) run one ipv4 >> dhcp subnetwork or one ipv6 dhcp supnetwork or both one ipv4 network >> and one ipv6 network. >> >> 3. If a dhcp-range is specified for the ipv6 subnetwork then I need >> the AdvManagedFlag on which (I believe) is done with the additional >> dsnmasq parameter "enable-ra". >> >> 4. But, I may have an IPv6 subnetwork but dhcp-range has not been >> specified. In this case I want the AdvManagedFlag off. This one is >> the situation that I am not clear on. >> >> 5. None of the other dnsmasq capabilities with respect to RA will be >> used. >> >> Comments/suggestions? >> >> If this requires a little enhancement patch, I am willing. >> >> > OK, I believe I have answered my own question but I would still like > confirmation. > > I ran a test with no radvd running ... only dnsmasq. With enable-ra and > dhcp-range specified for ipv6 addresses, the client side gets a dhcp6 > address and RA default route. Check.
> With enable-ra and NO dhcp-range > specified, the client gets a SLAAC address and RA default route. That's not what I'd expect. To get RA on a subnet but not dhcp, you need to have dhcp-range=<subnet>,ra-only enable-ra is superfluous in that case. > > With enable-ra and dhcp-range,I do notice a lot of RTR-ADVERT messages > ... like one every couple of seconds. Is there a way to suppress this > message and/or increase the time between the events or at least the > messages [that is without disabling dhcp logging] ? The frequency will decrease over time. It's roughly every 10 seconds for the first minute, and then about every 10 minutes. Cheers, Simon. > > Maybe it would be useful is this message was only sent to the syslog > once every ten or twenty events. > > Gene > > > _______________________________________________ > Dnsmasq-discuss mailing list > Dnsmasq-discuss@lists.thekelleys.org.uk > http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss > _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
