I've set up DHCP ... and so far so good. The problem is when I try to connect a device. I did a test with Linux and each time it only sets me 1 DNS (i have set two dns server in DHCP server). It also sets me other nameservers / searches that I have not set up on the openwrt DHCP server!

PS. I have disabled the DNS of dnsmasq

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How can I disable this thing?

1 Answer 1


Are you sure you only have one DHCPd server on the network? Extra DNS server IPs is pretty strange.

When a client makes a DHCP request it takes any answer it receives on the assumption that the LAN is secure. There is no prioritization. Which ever server answers first wins.

  • yes...Don't pay attention to that "" which is my lan ... and in my lan I don't have the DHCP server. In the router network, however, I disabled DHCP ... so there should only be mine! So, where does that a come nameserver fe80::d635:1dff:fe5d:74ab%wlan0 and search homenet.telecomitalia.it from? Oct 3, 2022 at 22:37
  • The strange thing is that if I use isc-dhcp-server this doesn't happen! How is it possible? Is there any setting in dnsmasq? Oct 3, 2022 at 22:38
  • Log Registry System Openwrt: Tue Oct 4 01:30:31 2022 daemon.info dnsmasq[5678]: compile time options: IPv6 GNU-getopt no-DBus UBus no-i18n no-IDN DHCP DHCPv6 no-Lua TFTP conntrack ipset auth cryptohash DNSSEC no-ID loop-detect inotify dumpfile. How do I disable DHCPV6? Oct 3, 2022 at 23:31

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