I have not tested it myself, but I believe incoming interfaces are set as tags. Set tags are visible in log when log-dhcp is used, there should be tag set for incoming interface.
Have you tried it this way? dhcp-range=tag:eth2.11,10.11.1.2,10.11.1.201,7200 dhcp-option=tag:eth2.11,3,10.11.1.1 dhcp-option=tag:eth2.11,6,10.11.1.1 Cheers, Petr On 7/9/21 10:44 AM, Taras Taranenko via Dnsmasq-discuss wrote: > Hi, > > it looks like we have issue with configuring DHCP DNS OPT 6 for certain > interface. > Here are some examples: > > interface=eth2.11 > dhcp-range=interface:eth2.11,10.11.1.2,10.11.1.201,7200 > dhcp-option=interface:eth2.11,3,10.11.1.1 > dhcp-option=interface:eth2.11,6,10.11.1.1 > > interface=eth2.12 > dhcp-range=interface:eth2.12,10.12.1.2,10.12.1.201,7200 > dhcp-option=interface:eth2.12,3,10.12.1.1 > dhcp-option=interface:eth2.12,6,10.12.1.1 > > interface=eth2 > dhcp-range=eth2,10.0.1.2,10.0.1.201,7200 > dhcp-option=interface:eth2,3,10.0.1.1 > dhcp-option=interface:eth2,6,10.0.1.1 > > In such setup, dnsmasq does not including > OPTION: 6 ( 4) DNS server 10.0.1.1 > Into DHCPACK messages send to eth2, but perfectly sending correct DNS IPs to > eth2.11 and eth2.12. > > I found that even if I have one interface configured and using configuration > option of > dhcp-option=interface:eth2,6,10.0.1.1 > instead of > dhcp-option=6,10.0.1.1 > I will not get DNS server in responses. Router IP BTW always correct with > both variants of configuration. > > As for me it looks like a bug. > Thanx for looking into it. > > Best regards, > Taras Taranenko -- Petr Menšík Software Engineer Red Hat, http://www.redhat.com/ email: pemen...@redhat.com PGP: DFCF908DB7C87E8E529925BC4931CA5B6C9FC5CB _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss
