Philipp,

I am facing the same problem here since the Upgrade to 2.3.2
DNS resolution through the OpenVPN tunnel works with site2site VPN.
But it does not work with with remote login from my laptop.
This worked up to version 2.3.1_p5

Do you have a solution meanwhile?

Thanks and Regards
Lars

On 07/28/2016 10:04 AM, Philipp Tölke wrote:
Hi again,

From: Philipp Tölke [mailto:philipp.toe...@fos4x.de]
Sent: 27 July, 2016 16:01

Check the system routing table. From the sound of the errors, it would
appear that the firewall routing table does not include a route back to
the VPN client subnet.

Interesting: The routing table has an entry for the VPN network:

Destination        Gateway            Flags      Netif Expire
[...]
10.1.2.0/24        10.1.2.2           UGS      ovpns2
10.1.2.2           link#16            UH       ovpns2

But since the OpenVPN is configured as "net30" the gateway 10.1.2.2 is
not on the same network as most of the querying systems...

Why has this worked until yesterday?

So I dug into this issue some more; the other VPN-Servers all use "subnet"
and not "net30" and DNS works.

The other VPN-Servers all have routes looking like this:

10.1.0.0/24        10.1.0.1           UGS      ovpns1
10.1.0.1           link#15            UHS         lo0
10.1.0.2           link#15            UH       ovpns1

Changing the route of the net30-VPN to be like the routes of my other
VPN-Servers:

10.1.2.0/24        10.1.2.1           UGS      ovpns2
10.1.2.1           link#16            UHS         lo0
10.1.2.2           link#16            UH       ovpns2

Does not help with my issue.

Even adding the peer-to-peer configuration of a host to the interface:

ifconfig ovpns2 10.1.2.181 10.1.2.182 netmask 255.255.255.255 alias

Has not enabled DNS resolving. Resolving using another DNS-Server in my
internal net works so this is not a firewall-issue.

Is there anything I can do short of rolling out another DNS-Server?

Thanks for the help!

Philipp
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