[Dnsmasq-discuss] multiple upstream servers

[Horn Bucking]

On 7/30/20, wkitty42 at gmail.com wrote:

>On 7/29/20 7:59 PM, Dan Schaper wrote:
>>You've told dnsmasq to send a lease with option 6 (DNS) set to
>>10.88.13.3. Where dnsmasq forwards the queries to is not relevant to
>>your issue, you only have one upstream server configured.
>
>are you saying that this
>
>>>dhcp-option=tag:red,option:dns-server,10.88.13.3
>>>dhcp-option=tag:green,option:dns-server,10.88.13.4
>
>is not defining two upstream servers?
If you'd expect dnsmasq's DNS server to switch its upstream DNS based on 
those options, that expectation would be entirely unjustified:
Those lines configure DHCP, not DNS.

That first line instructs the DHCP server to hand out 10.88.13.3 as DNS 
server when a red DHCP client is requesting that DHCP information, e.g. 
during initial DHCP lease negotiation - likewise the second with 
10.88.13.4 for green clients.
A client will then send its DNS queries to that respective DNS server.

S Irlapati, you did force your client to request a new DHCP lease to put 
those options into effect, didn't you?