this post was submitted on 28 Sep 2023
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20
[help]How to solve identic DNS address from router through wireguard vpn (lemmy.ml)
submitted 2 years ago* (last edited 2 years ago) by [email protected] to c/[email protected]
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So I'm currently away from home and now I'm using the internet from another router.

My problem is that I can't access my services because the default DNS from this router is 192.168.1.1 and the DNS that I use to access my services through wireguard is also 192.168.1.1

The wireguard service comes from my own router using Opnsense and I have setup unbound+Adguard DNS as 192.168.1.1 by default so I don't know how can I solve this problem

I tried setting my computer to listen to 1.1.1.1 when connected to this wifi but when I enable my wireguard it still doesn't connect to my services I also tried enabling my Adguard to listen to All interfaces so it would enable the IP 10.50.50.0 as a DNS but I don't know much about Opnsense so it also didn't work when I changed the wireguard config file to listen to 10.50.50.0

My wireguard tunnel IP is set to 10.50.50.&& when connected to my router and the default IP when connected directly at home is the 192.168.1.&&

My phone can connect to the wireguard normally even when connected to this wifi

Does anyone had also this same problem as me could help me a little? Thank you. Sorry for the bad english

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[–] [email protected] 2 points 2 years ago (1 children)

Immediate workaround - use your phone's config. I would then try to build another config for the phone based on a working one.

[–] [email protected] 3 points 2 years ago (1 children)

But the problem is the DNS, I think the phone isn't as picky as the computer when connecting to wireguard that why it works, I will try doing that but I don't think that's the problem

[–] [email protected] 3 points 2 years ago

If you genuinely suspect the computer - try checking routing tables. Although that's impossible to help you with as the environment would be unfamiliar.

[–] [email protected] 1 points 2 years ago (1 children)

10.50.50.0 is not a valid IP address in most configurations. Have you tried 10.50.50.1?

[–] [email protected] 1 points 2 years ago

I didn't know that, in Adguard > Setup guide > configure your devices. Since I selected to listen to All interfaces there are lots of IP addresses so I just copied the IP from my wireguard interface like this. Screenshot_20230929-155326_1