On 01/11/12 13:48, Gene Czarcinski wrote: > On 11/01/2012 08:59 AM, 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. With enable-ra and NO dhcp-range >> specified, the client gets a SLAAC address and RA default route. >> >> 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] ? >> >> Maybe it would be useful is this message was only sent to the syslog >> once every ten or twenty events. >> > One additional question With enable-ra and dhcp-range, then dnsmasq > supplies the RDNS info in the RA packet but it does not if dchpv6 is not > specified. It seems like this should be reversed.
It will always supply the RDNS info if it can find a dhcp-option to get the info from. I wonder if you have another RA daemon on the net which is providing advertisements ahich are being used when you don't have them correctly configured in dnsmasq? Cheers, Simon. > > 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