Development discussion of WireGuard
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From: "Björn Fries" <ml-wireguard@oern.de>
To: wireguard@lists.zx2c4.com
Subject: Re: Is it possible to disable wireguard on specific Wi-Fi ?
Date: Fri, 22 Apr 2022 11:51:17 +0200	[thread overview]
Message-ID: <94ddb2e7-9181-1a38-1b35-3e1a9766846e@oern.de> (raw)
In-Reply-To: <fd11943c-99e1-d0a0-b28b-de7d5c617eb3@oern.de>

Am 22.04.22 um 08:16 schrieb Björn Fries:
> the way I solve this is that I use a slightly larger /23-subnet in the
> AllowedIPs=192.168.87.0/23
> 
> and when I get a local IP inside 192.168.87.0/24 at home, the kernel 
> automatically uses the more specific route.

an example:
my laptop e.g. has

Address = 172.22.247.58/32
PrivateKey = xxx

[Peer]
PublicKey = xxx
AllowedIPs = 172.22.144.1/32, 192.168.0.0/23
Endpoint =  myhomeIP:51820
PersistentKeepalive = 25

172.22.144.1/32 is the wireguard-IP of my wireguard-server at home.

This way I can reach for example my printer at 192.168.0.10 even if I am 
on the move, because my wireguard server is installed on my router at 
home (Unifi USG-3P).
The printer sends it packets for 172.22.247.58 simply to its default 
gateway, which is my router/wg-server, that forwards it over wireguard.

When I'm in my network at home, my laptop gets the IP 192.168.1.72/24 
and automatically talks to the other devices in the LAN without taking 
the wireguard route, because the subnet is more specific.

  reply	other threads:[~2022-04-22  9:51 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-18  2:12 Nohk Two
2022-04-22  6:16 ` Björn Fries
2022-04-22  9:51   ` Björn Fries [this message]
2022-04-22 13:00     ` Nohk Two
2022-04-22 11:05   ` Nohk Two
2022-04-22 13:40     ` Björn Fries
2022-04-22 15:55       ` Nohk Two
2022-04-22 13:36 ` Jason Grant
2022-04-22 18:23 ` Kai Haberzettl
2022-04-23  2:01   ` Nohk Two
     [not found] <77422@imapsync>
2022-04-22  9:29 ` wireguard
2022-04-22 12:08   ` Nohk Two

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