On Sat, Jul 27, 2019 at 04:01:13PM -0400, Art Greenberg wrote: > On Sat, Jul 27, 2019, at 15:45, Andrew Miskell wrote: > > What do the devices say their DNS server is? If it???s the .1 address > > this would expected behavior because that???s the dnsmasq dns address. > > I cannot tell what the Roku streamers have assigned. The UI doesn't expose > that information.
Report that annoying inconvenience at https://support.roku.com/en-gb/ > In the previous configuration, with dnsmasq on 192.168.2.11 and > the gateway on .1, they DID properly go directly to the router on as > directed by dhcp-option while everything else on the network went to .11 > as expected. So either they defaulted to the gateway address for DNS or > they accepted the assignment from DHCP. They do ask for option 6, I can > see the DHCP request and response in the log. That much looks correct. > > In this configuration, I've told them to use Google servers. > > I don't know enough about how DNS works, but ... maybe they have > accepted that assignment, but the first DNS server in the request chain > is dnsmasq - and it answers rather than relays the request to Google's > servers because dnsmasq "knows" the answer - its in the addn-hosts file. > > Does that make sense? No, something is misbehaving. It is plain wrong to "explain" broken behaviour. Right now we don't know which device has a "special" feature. We do need to dig deeper. Networksniff the DNS traffic of the Roku streamer for starters. Groeten Geert Stappers -- Leven en laten leven _______________________________________________ Dnsmasq-discuss mailing list Dnsmasqemail@example.com http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss