Add dnsmasq section with luci failed

Installing and Using OpenWrt
1

I try to add a dns section (via luci). Target is espacially to have different resolve- and local domain names (in this case: eth0/10.1.2.0:office.lan and eth1/10.1.1.0:dc.lan)

Before adding dns section the dhcp config:

config dnsmasq
        option domainneeded '1'
        option boguspriv '1'
        option filterwin2k '0'
        option localise_queries '1'
        option rebind_protection '1'
        option rebind_localhost '1'
        option local '/office.lan/'
        option domain 'office.lan'
        option expandhosts '1'
        option nonegcache '0'
        option cachesize '1000'
        option authoritative '1'
        option readethers '1'
        option leasefile '/tmp/dhcp.leases'
        option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
        option nonwildcard '1'
        option localservice '1'
        option ednspacket_max '1232'
        option filter_aaaa '0'
        option filter_a '0'

config dhcp 'lan'
        option interface 'lan'
        option start '100'
        option limit '150'
        option leasetime '12h'
        option dhcpv4 'server'
        option dhcpv6 'server'
        option ra 'server'
        option ra_slaac '1'
        list ra_flags 'managed-config'
        list ra_flags 'other-config'

config dhcp 'wan'
        option interface 'wan'
        option ignore '1'

config odhcpd 'odhcpd'
        option maindhcp '0'
        option leasefile '/tmp/hosts/odhcpd'
        option leasetrigger '/usr/sbin/odhcpd-update'
        option loglevel '4'

config dhcp 'dc'
        option interface 'dc'
        option start '100'
        option limit '100'
        option leasetime '12h'
        option ra 'server'
        list ra_flags 'managed-config'
        list ra_flags 'other-config'
        option dhcpv6 'server'

With this config dhcp works on both interfaces.

After adding section "dc" the dhcp config is:

config dnsmasq
        option domainneeded '1'
        option localise_queries '1'
        option rebind_protection '1'
        option rebind_localhost '1'
        option local '/office.lan/'
        option domain 'office.lan'
        option expandhosts '1'
        option cachesize '1000'
        option authoritative '1'
        option readethers '1'
        option leasefile '/tmp/dhcp.leases'
        option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
        option localservice '1'
        option ednspacket_max '1232'
        list interface 'lan'

config dhcp 'lan'
        option interface 'lan'
        option start '100'
        option limit '150'
        option leasetime '12h'
        option dhcpv4 'server'
        option dhcpv6 'server'
        option ra 'server'
        option ra_slaac '1'
        list ra_flags 'managed-config'
        list ra_flags 'other-config'

config dhcp 'wan'
        option interface 'wan'
        option ignore '1'

config odhcpd 'odhcpd'
        option maindhcp '0'
        option leasefile '/tmp/hosts/odhcpd'
        option leasetrigger '/usr/sbin/odhcpd-update'
        option loglevel '4'

config dnsmasq 'dc'
        option start '100'
        option limit '100'
        option leasetime '12h'
        option ra 'server'
        list ra_flags 'managed-config'
        list ra_flags 'other-config'
        option dhcpv6 'server'
        option local '/dc.lan/'
        option domain 'dc.lan'
        option rebind_protection '0'
        option localservice '0'
        list interface 'dc'

Section " dhcp 'dc' " were delete and integrated in new section " dnsmask 'dc' "
This config don't work. eh0/office.lan is functionable, but not eth1.

I m without really knowledge. I tried a few things to modify the config but without success.

Thanks for help.

2

Well spot the differences:
first line change to: config dhcp 'dc'
last line change to: option interface 'dc'

4

the advantage is for those who are educated enough to read the wiki

the advantage is for those who are educated enough to read the wiki

https://openwrt.org/docs/guide-user/base-system/dhcp_configuration#multiple_dhcpdns_serverforwarder_instances