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HowTo: Configure Wireguard Android client to use internal DNS

HowTo: Configure Wireguard Android client to use internal DNS

HowTo: Configure Wireguard Android client to use internal DNS
HowTo: Configure Wireguard Android client to use internal DNS
2025-07-18 08:49:23 - last edited 2025-07-21 01:02:30
Tags: #WireGuard #DNS
Model: ER605 (TL-R605)  
Hardware Version:
Firmware Version:

Hi all,

 

I had problem configuring WireGuard client on my Android 15 Pixel phone to use my internal DNS on my LAN. No problems on my Windows laptop.

After long research I've found small notice somewhere deep on some forum - tried and it works!

 

In the field allowed IP you have to add additionally (to the usual 0.0.0.0/0) the subnet where the DNS servers are located too.

 

WireGuard-Android

/BR ZoloNN ----------------------------------------------------------------------------------- Omada 2x ER605(UN) v2.0 + SG2008P(UN) V3.20 + SG2218 V1.20 + 2x SG2008 V4.20 + 3x EAP615-Wall(EU) V1.0
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#1
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1 Accepted Solution
Re:HowTo: Configure Wireguard Android client to use internal DNS-Solution
2025-07-18 10:24:50 - last edited 2025-07-21 01:02:30

Hi @Clive_A,

 

yes, you're right, 0.0.0.0/0 should include all - but it wasn't working some time ago.

now I've tried it again and it works as expected. apparently has WireGuard corrected the bug.

 

found the original forum post - is in german language.

 

/BR ZoloNN ----------------------------------------------------------------------------------- Omada 2x ER605(UN) v2.0 + SG2008P(UN) V3.20 + SG2218 V1.20 + 2x SG2008 V4.20 + 3x EAP615-Wall(EU) V1.0
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#3
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Re:HowTo: Configure Wireguard Android client to use internal DNS
2025-07-18 09:00:31

  @ZoloNN 
It's not necessary. 

0.0.0.0/0 already includes that subnet.

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#2
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Re:HowTo: Configure Wireguard Android client to use internal DNS-Solution
2025-07-18 10:24:50 - last edited 2025-07-21 01:02:30

Hi @Clive_A,

 

yes, you're right, 0.0.0.0/0 should include all - but it wasn't working some time ago.

now I've tried it again and it works as expected. apparently has WireGuard corrected the bug.

 

found the original forum post - is in german language.

 

/BR ZoloNN ----------------------------------------------------------------------------------- Omada 2x ER605(UN) v2.0 + SG2008P(UN) V3.20 + SG2218 V1.20 + 2x SG2008 V4.20 + 3x EAP615-Wall(EU) V1.0
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#3
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Re:HowTo: Configure Wireguard Android client to use internal DNS
2025-07-30 13:16:24

Hi @Clive_A,

 

WireGuard clients are quite strange............

Today I have configured my notebook for WireGuard - and I had again to explicitly add my local network range(s) additionally to configuration (except the usual 0.0.0.0/0) as I wasn't able to reach any internal adresses on the site.

And there was no problem reaching adresses on internet and/or addresses on other site (connected via SD-WAN) - only local ones.........

 

I'm using the latest WireGuard Windows client, version 0.5.3

 

/BR ZoloNN ----------------------------------------------------------------------------------- Omada 2x ER605(UN) v2.0 + SG2008P(UN) V3.20 + SG2218 V1.20 + 2x SG2008 V4.20 + 3x EAP615-Wall(EU) V1.0
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#4
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