Samsung Galaxy S10e =?utf-8?Q?can=E2=80=99t_?=reach local devices in network

[David Wibergh]

Hi everyone,

Sorry for bothering you, but we do have an Android specific question. When using the official WireGuard app on Android (v1.0.20200927), as well as our own, on certain device types we have issues reaching local devices in the network, even if we exclude private IPs. It works entirely fine on other device models though. I have tried on several different wireless networks & different subnets (192.168.0.1/24, 192.168.0.1/16, 10.220.0.1/16), as well as reaching various devices.

So far, we have had issues on OnePlus HD1903 & Samsung Galaxy S10e (model number SM-G970F).


Network
I have three devices in the wireless network (10.220.1.1/16).

1. Samsung Galaxy S10e (10.220.0.2)
2. Macbook (10.220.0.1)
3. Lenovo thinkpad (10.220.1.7)

On the S10e, I can not ping 10.220.0.1 nor 10.220.1.7 when connected.

On the Macbook, I can ping 10.220.1.7 when connected.


Configurations

Macbook uses following config:

[Interface]
PrivateKey = XXX
Address = 172.20.196.X/32, fd00:0:1337:cafe:1111:1111:X:1a60/128
DNS = 46.227.67.134, 192.165.9.158

[Peer]
PublicKey = 0CvxLBss+WQyJqidXRUnd5iO9gMJwMFNPidg09d4Onk=
AllowedIPs = ::/0, 0.0.0.0/5, 8.0.0.0/7, 11.0.0.0/8, 12.0.0.0/6, 16.0.0.0/4, 32.0.0.0/3, 64.0.0.0/2, 128.0.0.0/3, 160.0.0.0/5, 168.0.0.0/6, 172.0.0.0/12, 172.32.0.0/11, 172.64.0.0/10, 172.128.0.0/9, 173.0.0.0/8, 174.0.0.0/7, 176.0.0.0/4, 192.0.0.0/9, 192.128.0.0/11, 192.160.0.0/13, 192.169.0.0/16, 192.170.0.0/15, 192.172.0.0/14, 192.176.0.0/12, 192.192.0.0/10, 193.0.0.0/8, 194.0.0.0/7, 196.0.0.0/6, 200.0.0.0/5, 208.0.0.0/4, 46.227.67.134/32, 192.165.9.158/32
Endpoint = vpn90.prd.erfurt.ovpn.com:9929


Samsung Galaxy S10e uses the following config:

[Interface]
Address = X/32, fd00:0:1337:cafe:1111:1111:e827:X/128
DNS = 46.227.67.134, 192.165.9.158
PrivateKey = XXX

[Peer]
AllowedIPs = 0.0.0.0/5, 8.0.0.0/7, 11.0.0.0/8, 12.0.0.0/6, 16.0.0.0/4, 32.0.0.0/3, 64.0.0.0/2, 128.0.0.0/3, 160.0.0.0/5, 168.0.0.0/6, 172.0.0.0/12, 172.32.0.0/11, 172.64.0.0/10, 172.128.0.0/9, 173.0.0.0/8, 174.0.0.0/7, 176.0.0.0/4, 192.0.0.0/9, 192.128.0.0/11, 192.160.0.0/13, 192.169.0.0/16, 192.170.0.0/15, 192.172.0.0/14, 192.176.0.0/12, 192.192.0.0/10, 193.0.0.0/8, 194.0.0.0/7, 196.0.0.0/6, 200.0.0.0/5, 208.0.0.0/4, ::/0, 46.227.67.134/32, 192.165.9.158/32
Endpoint = vpn11.prd.kista.ovpn.com:9929
PublicKey = p4s2SuFgKgWnV56Uh3yCx6ZWnaVyFXegV9FQqv670So=


Is this an issue you’re aware of? Is there anything else needed from me?

Thanks,
David Wibergh