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WireGuard / wireguard-vyatta-ubnt

WireGuard for Ubiquiti Devices
https://www.wireguard.com/
GNU General Public License v3.0
1.46k stars 69 forks source link

non-stop PTR requests #22

Closed mxmartins closed 4 years ago

mxmartins commented 4 years ago

I have an ER8-XG on firmware 2.0.9 beta3. Wireguard on version e1000-v2-v1.0.20200506-v1.0.20200319 runs just fine.

After I upgraded to Wireguard e1000-v2-v1.0.20200506-v1.0.20200510, I run into a problem where the ER8-XG is in a non-stop loop sending PTR requests to my DNS (internal pihole).

After upgrading the ER8-XG, the router and the DNS (pihole) work just fine. But as soon as a Wireguard client connects to the network, the ER8-XG sends PTR requests to my DNS (pihole) asking for 3.0.10.10.in-addr.arpa. I'm seeing over 1000 PTR requests per minute, and it's crushing the DNS server.... The 10.10.0.3 is the address for the device on the Wireguard network.

I downgraded to the previous version of the Wireguard (e1000-v2-v1.0.20200506-v1.0.20200319) and the problem goes away.

I tried again by upgrading to the newer Wireguard version, and the PTR problem comes right back.

Can you please take a look at it and see what the problem is?

mxmartins commented 4 years ago

An update.... under the previous wireguard version, the problem is still there.... So, it could be an issue with the Router Firmware.... Pursuing that avenue as well....

mxmartins commented 4 years ago

It turns out that Conditional Forwarding settings in PiHole were causing a DNS loop.... I'm still trying to track down exactly how that was taking place, but issue appears to be resolved....

FossoresLP commented 4 years ago

@mxmartins Are you still considering this a potential issue with this package? Otherwise please close the issue.