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OpenVPN & DNS Leak Test

MXM

Regular Contributor
RMerlin,

I have a RT-AC3200 running 380.58 Alpha3. Everything is running fine but I have an OpenVPN question, which may not be related to this particular Alpha.

When I use OpenVPN to connect my laptop to my router at home, and then do an DNS Leak Test (www.dnsleaktest.com), the results always point to Comcast DNS Servers even though my WAN DNS Server 1 and WAN DNS Server 2 point to OpenDNS servers.

To get the DNS Leak Test to work properly, I have to also include the OpenDNS servers in the LAN, DHCP Server, DNS Server 1 and DNS Server 2.

So, it appears that the OpenVPN server side of in the router must only be passing the LAN, DHCP Server, DNS Servers and not the WAN DNS servers.

Is that the way it is supposed to work? I was under the impression that the lack of DNS Server information in the LAN, DHCP Server page would cause the router to use the WAN DNS Servers. That does not appear to be the case.

Here's my OpenVPN Client settings:
client
dev tun
proto udp
remote
resolv-retry 30
nobind
persist-key
persist-tun

route-metric 50
route 0.0.0.0 0.0.0.0

ca ca.crt
cert LAPTOP.crt
key LAPTOP.key

tls-auth hmac.key
key-direction 1

ns-cert-type server
cipher AES-256-CBC
comp-lzo adaptive
verb 4

block-outside-dns
script-security 2


In the Router OpenVPN Server Advanced Settings, Advertise DNS to Clients is set to YES. Respond to DNS is also set to YES.

What is your take on this?

Thanks,
MM
 

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