Network Failure After Switching from dnsmasq to unbound

Routers VPN, DNS, Leaks
1

I tried couple times to replace the default dnsmasq with unbound on my Flint 2 GL-MT6000. The issue appearing either immediately or after some time. Devices already connected via Wi-Fi lose internet access but remain connected to the network. When attempting to reconnect a device or connect a new device to Wi-Fi the connection fails. Some times I can still access the router through wired connection, some times even the wired connection fails.

Here are the steps I took and some relavent outputs:

Before disabling dnsmasq, this is netstat output:

netstat_dnsmasq
netstat_dnsmasq2048Ɨ1050 302 KB

Then I run service dnsmasq stop and service dnsmasq disable to disable the dnsmasq, here is the netstat output after:

netstat_dnsmasq_disabled
netstat_dnsmasq_disabled2066Ɨ808 74.8 KB

I then run service unbound enabled and service unbound start, and netstat:

netstat_unbound
netstat_unbound2062Ɨ762 71.3 KB

I think unbound is reached since I saw the output from unbound-control dump_cache (I enabled unbound-control and service unbound restart).

Iā€™m a bit clueless regarding the cause and how should I go about troubleshoot this. Any advice would be appericiated. Thanks in advance.

3

Hi

dnsmasq also runs the DHCP server, so disabling it will prevent LAN devices from obtaining IP addresses via DHCP.

If you only wish to disable its DNS functionality, navigate to Luci - Network - DHCP and DNS - Devices & Ports, then change the DNS server port to 0, save & apply.

image
image1046Ɨ752 31.8 KB

3 Likes
4

You are right. I got it working now after bringing dnsmasq back as only DHCP server.