Set Up Router (Zyxel EMG3425-Q10A) for OpenDNS But isn't working, no blocking

December 20, 2018 01:38

I have an Zyxel EMG3425-Q10A router. I logged into the router, updated the DNS settings to OpenDNS,

208.67.222.222
208.67.220.220

I have restarted the router and my computer and done the cache flushing.

But when I visit the test page, it still says that OpenDNS is not being used and the "internetbadguys.com" test page is not being blocked either.

What am I missing??

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10 comments

rotblitz December 20, 2018 11:58
I need more information. Copy & paste the complete plain text output of the following diagnostic commands to here:
```
nslookup -type=txt debug.opendns.com. 208.67.220.220
nslookup -type=txt which.opendns.com.
nslookup whoami.akamai.net.
ipconfig /all
```
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jimbobdean December 26, 2018 07:09

C:\Users\Fam>nslookup -type=txt debug.opendns.com. 208.67.220.220
Server: resolver2.opendns.com
Address: 208.67.220.220

Non-authoritative answer:
debug.opendns.com text =

"server m89.ash"
debug.opendns.com text =

"flags 20 0 50 180000000000000000003950000000000000000"
debug.opendns.com text =

"originid 214644696"
debug.opendns.com text =

"actype 2"
debug.opendns.com text =

"bundle 11692730"
debug.opendns.com text =

"source 216.197.79.243:57963"

C:\Users\Fam>nslookup -type=txt which.opendns.com.
Server: ec2-23-21-43-50.compute-1.amazonaws.com
Address: 23.21.43.50

Non-authoritative answer:
which.opendns.com text =

"I am not an OpenDNS resolver."

opendns.com nameserver = auth3.opendns.com
opendns.com nameserver = auth1.opendns.com
opendns.com nameserver = auth2.opendns.com

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jimbobdean December 26, 2018 07:17 (Edited December 26, 2018 14:48)

C:\Users\Fam>nslookup whoami.akamai.net.
Server: ec2-23-21-43-50.compute-1.amazonaws.com
Address: 23.21.43.50

Non-authoritative answer:
Name: whoami.akamai.net
Address: 74.125.80.4

Windows IP Configuration

Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Mellanox ConnectX-2 Ethernet Adapter
Physical Address. . . . . . . . . :
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::bdbe:fd82:3422:c85d%9(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 167772873
DHCPv6 Client DUID. . . . . . . . :
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . : zyxel.com
Description . . . . . . . . . . . : Intel(R) Ethernet Connection (2) I218-V
Physical Address. . . . . . . . . :
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::dd3c:3378:8707:a418%3(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.49(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Wednesday, December 26, 2018 12:46:44 AM
Lease Expires . . . . . . . . . . : Wednesday, December 26, 2018 12:46:43 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 37279047
DHCPv6 Client DUID. . . . . . . . :
DNS Servers . . . . . . . . . . . : 23.21.43.50
169.53.235.135
NetBIOS over Tcpip. . . . . . . . : Enabled

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rotblitz December 26, 2018 15:51

This is the configured DNS service on your computer:

DNS Servers . . . . . . . . . . . : 23.21.43.50
169.53.235.135

This is clearly not OpenDNS and most likely overwrites the router settings. Or you didn't configure the router correctly. Configure the computer to obtain the DNS server settings automatically via DHCP from the router, or configure OpenDNS on the computer. The OpenDNS resolver addresses are 208.67.222.222 and 208.67.220.220.

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cory.miller June 14, 2020 16:08

I have this issue, too. Here's the output of the command line queries:

Server: resolver2.opendns.com
Address: 208.67.220.220

Non-authoritative answer:
debug.opendns.com text =

"server m41.pao"
debug.opendns.com text =

"flags 40020 0 50 1800000000000000000039500007E00400014C3"
debug.opendns.com text =

------------------------------------------- added for clarity ----------------------------------------------

Server: resolver2.opendns.com
Address: 208.67.220.220

Non-authoritative answer:
which.opendns.com text =

"m9.pao"

------------------------------------------- added for clarity ----------------------------------------------

Server: resolver2.opendns.com
Address: 208.67.220.220

Non-authoritative answer:
Name: whoami.akamai.net
Addresses: 2620:0:cc3::19
208.67.219.17

------------------------------------------- added for clarity ----------------------------------------------

Windows IP Configuration

Host Name . . . . . . . . . . . . : DESKTOP-J4MSG9P
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : local

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . : local
Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet
Physical Address. . . . . . . . . : BC-30-5B-9D-11-8E
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::a984:2094:d937:6e71%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.48(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Sunday, June 14, 2020 1:15:12 AM
Lease Expires . . . . . . . . . . : Sunday, June 14, 2020 7:15:12 PM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 62664795
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-F9-9A-46-BC-30-5B-9D-11-8E
DNS Servers . . . . . . . . . . . : 208.67.220.220
208.67.222.222
192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

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rotblitz June 14, 2020 16:23 (Edited June 14, 2020 16:26)

DNS Servers . . . . . . . . . . . : 208.67.220.220
208.67.222.222
192.168.1.1

Remove 192.168.1.1 from the DNS configuration on this computer.

Instead of “added for clarity” you better had shown the commands being executed. That would have provided true clarity.

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cory.miller June 16, 2020 03:38

Sorry--my intent was to show clear delineation between each command line's output; no offense intended.

I tried to delete the 192.168.1.1 before running the command line scripts, but the router put it back in. I'll try it again and post the results here.

Thank you for the help.

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rotblitz June 16, 2020 09:06 (Edited June 16, 2020 09:15)
If this does not help, do the following things:

Post the output of the following command here:
```
netsh interface ipv4 show config
```
Also post a screen shot of the router page where you have the OpenDNS resolver addresses configured.

As you said you have the same issue as the previous report, am I right that you have a Zyxel EMG3425-Q10A router?
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cory.miller June 17, 2020 01:01

We do have the same Zyxel modem/router.

I reapplied the removal of the 192.168.1.1 address from the DNS list and verified that it stayed removed. Site black listing works as advertised now.

Again, I appreciate your help, though it still baffles me as to why the 192.168.1.1. address popped back in.

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rotblitz June 17, 2020 08:53

Most likely a glitch in the router firmware...

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