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Re: [rare-dev] [freertr] [RARE-users] Routing between wireguard tunnels


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  • From: mc36 <>
  • To: , Gabriel Tetzner <>
  • Subject: Re: [rare-dev] [freertr] [RARE-users] Routing between wireguard tunnels
  • Date: Sat, 27 Aug 2022 17:26:37 +0200

come on guys please! it really seems not that hard if you know basic routing
:)

On 8/27/22 16:56, Gabriel Tetzner wrote:
Anybody?

Em sex., 26 de ago. de 2022 s 17:18, Gabriel Tetzner via groups.io <http://groups.io>
< <>>
escreveu:

image.png

Hi all,

I managed to solve it with Csaba's tip to isolate the vrf, I used the
EIGRP protocol and configured the routing issue:

Now 20.0.0.3 ping 10.0.0.3 <http://10.0.0.3>:

freertr-3:
sh int tun1:

tunnel1 is up
description:
state changed 17 times, last at 2022-08-24 21:42:28, 2d0h ago
last packet input 00:00:02 ago, output 00:00:02 ago, drop never ago
type is wireguard, hwaddr=none, mtu=1400, bw=8000kbps, vrf=wireguard
ipv4 address=20.0.0.3/24 <http://20.0.0.3/24>, mask=255.255.255.0,
ifcid=150335649
received 33024 packets (2180896 bytes) dropped 0 packets (0 bytes)
transmitted 1193 packets (74066 bytes) macsec=false sgt=false

freertr#ping 10.0.0.3 vrf wireguard
pinging 10.0.0.3, src=null, vrf=wireguard, cnt=5, len=64, df=false,
tim=1000, gap=0, ttl=255, tos=0, sgt=0, flow=0, fill=0, alrt=-1, sweep=false,
multi=false
!!!!!
result=100.0%, recv/sent/lost/err=5/5/0/0, took 726, min/avg/max/dev
rtt=143/144/150/7.4, ttl 254/254/254/0.0, tos 0/0.0/0/0.0

The reverse is also possible:

freertr-r2:

freertr#sh int tun1
tunnel1 is up
description:
state changed 21 times, last at 2022-08-26 21:13:09, 00:55:27 ago
last packet input 00:00:03 ago, output 00:00:03 ago, drop never ago
type is wireguard, hwaddr=none, mtu=1400, bw=8000kbps, vrf=wireguard
ipv4 address=10.0.0.3/24 <http://10.0.0.3/24>, mask=255.255.255.0,
ifcid=906822900
received 30063 packets (1989950 bytes) dropped 0 packets (0 bytes)
transmitted 1298 packets (80644 bytes) macsec=false sgt=false

freertr#ping 20.0.0.3 vrf wireguard
pinging 20.0.0.3, src=null, vrf=wireguard, cnt=5, len=64, df=false,
tim=1000, gap=0, ttl=255, tos=0, sgt=0, flow=0, fill=0, alrt=-1, sweep=false,
multi=false
!!!!!
result=100.0%, recv/sent/lost/err=5/5/0/0, took 717, min/avg/max/dev
rtt=143/143/145/0.6, ttl 254/254/254/0.0, tos 0/0.0/0/0.0

Now I am left with a question, how do I make the debian machine in
freeRtr-r3 ping the ip of the freeRtr-2 tunnel?

In this topology consider that there is a prometheus server running on
top of freeRtr-r3 debian and I need to talk to 10.0.0.3?

Can anyone help me?

Thanks...


Em sex., 26 de ago. de 2022 s 04:03, Gabriel Tetzner via groups.io
<http://groups.io> <
<>> escreveu:

anybody?

Em qua., 24 de ago. de 2022 s 12:40, mc36 <
<>> escreveu:

anybody?


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.
>

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