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Re: [rare-dev] Welcome to the "Idr" mailing list (Digest mode)


Chronological Thread 
  • From: mc36 <>
  • To: , Frédéric LOUI <>
  • Subject: Re: [rare-dev] Welcome to the "Idr" mailing list (Digest mode)
  • Date: Thu, 25 Aug 2022 10:07:32 +0200

attaching my answer to gabriel, but imho it needs some explanation, i really
didn't wanted to harm him... :)

On 8/25/22 10:01, Fr d ric LOUI wrote:
+1 (registered)

Le 24 ao t 2022 23:09, mc36 <> a crit :

someone else?


-------- Forwarded Message --------
Subject: Welcome to the "Idr" mailing list (Digest mode)
Date: Wed, 24 Aug 2022 14:08:53 -0700
From:
To:

Welcome to the mailing list! Note Well


--- Begin Message ---
  • From: mc36 <>
  • To: Gabriel Tetzner <>
  • Subject: Re: [rare-dev] Routing between wireguard tunnels
  • Date: Wed, 24 Aug 2022 20:18:56 +0200
the short answer is yes,
isolate the underlay and the overlay vrfs (tun vrf, vrf for)
pick a routing protocol and red conn everywhere
you'll end up with an equal rib in all the boxes,
that is, sho ipv4 rou v1 will be the same in the overlay everywhere
that is, all the nodes will know where to send the packets in the overlay
while isolating it completely it from the underlay...

but please help me a bit and mimic that you haven't got the answer and ping
onlist with the excellent drawing _daily_!
i hope you got the above, if yess, please reply with a short summary onlist
when you've given up the above...



On 8/18/22 18:09, Gabriel Tetzner wrote:
Hi all,

I have the following topology built using two wireguard tunnels:

image.png

In this case freertr-r3 is isolated on another network, but has a public ip
to tunnel wireguard with freertr-r1 which is also on another network and has
a public ip.

This topology is working and the pings respectively for each ip:

10.0.0.2 ping 10.0.0.3
20.0.0.2 ping 20.0.0.3
10.0.0.3 ping 10.0.0.2
20.0.0.3 ping 20.0.0.2

But I want 20.0.0.2 to reach 10.0.0.3, do I need to configure a route for this using ipv4 route? or is there another way to route the traffic? in this case I am talking about freertr-r1.


--- End Message ---



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