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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Thu, 5 Jul 2018 21:24:23 +0200
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Subject: Re: "Exclude Private IPs" in Android App
To: denis@dkisselev.net
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Cc: Eric Kuck <eric@bluelinelabs.com>,
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Hi Denis,

> I get "Error bringing up tunnel: Bad Address" if I try to set Allowed IP's to "10.5.0.1/24,192.168.1.0/13" but it works with "0.0.0.0/0".

User error. This fails because:

192.168.1.0 & (1 << (32 - 13)) != 192.168.1.0
and
10.5.0.1 & (1 << (32 - 24) != 10.5.0.1

Try instead using 192.168.0.0/13 and 10.5.0.0/24.

Jason