dnsmasq not working without internet connection

[peter]

I configured dnsmasq which resolves dns names as I want. Problem is occured when internet connection is not available. I cannot do ping or use nslookup from any computer in network.

Can not ping or nslookup computer in lan network :

C:\>nslookup myComputer
Server:  1.1.168.192.in-addr.arpa
Address:  192.168.1.1

Name:    myComputer.home
Addresses:  10.0.0.1
          10.0.0.1

Config files:
etc/hosts:

192.168.1.1 router
192.168.1.10 myComputer

dnsmasq.conf

pid-file=/var/run/dnsmasq.pid
user=nobody
bind-dynamic
interface=br0
interface=ppp1*
no-dhcp-interface=ppp1*
resolv-file=/tmp/resolv.conf
servers-file=/tmp/resolv.dnsmasq
no-poll
no-negcache
cache-size=1500
min-port=4096
domain=home
expand-hosts
bogus-priv
local=/home/
dhcp-range=lan,192.168.1.100,192.168.1.254,255.255.255.0,86400s
dhcp-option=lan,3,192.168.1.1
dhcp-option=lan,15,home
dhcp-option=lan,44,192.168.1.1
dhcp-option=lan,252,"\n"
dhcp-authoritative
read-ethers
addn-hosts=/etc/hosts.dnsmasq
address=/0.0.0.0/0.0.0.0
addn-hosts=/tmp/mnt/usb8GB/addblock/hosts.clean

 

[ColinTaylor]

Do you have "WAN > Internet Connection > Redirect to error page" set?

 

[peter]

No, I don't. I can not see option "WAN > Internet Connection > Redirect to error page" on my router page.

Firmware:378.55 (AC68U)

 

[john9527]

No, I don't. I can not see option "WAN > Internet Connection > Redirect to error page" on my router page.

The option is located on the Administration > System page.

 

[peter]

OK. I found: "Enable WAN down browser redirect notice" and the option is set to YES.

 

[ColinTaylor]

Try setting it to No/Never/Disabled (whatever the exact option is). It probably won't make a difference but it's worth a go.

 

[peter]

Try setting it to No/Never/Disabled (whatever the exact option is). It probably won't make a difference but it's worth a go.

Perfect clue. After set option to "No", dnsmasq work perfectly again. Thanks for help

Any explanation how "Enable WAN down browser redirect notice" works? It is default set to YES, but redirect doesn't working and damage my dnsmasg settings.

 

[john9527]

That option set iptables rules that redirects all port 80 (http) and port 53 (dns) requests to the internal router webserver. If you have a browser open, you'll get a web page telling you that your WAN connection, modem Ethernet link and a few other conditions may be down.