Development discussion of WireGuard
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From: Vincent Wiemann <vincent.wiemann@ironai.com>
To: Matthias Urlichs <matthias@urlichs.de>, wireguard@lists.zx2c4.com
Subject: Re: Overlapping AllowedIPs Configuration
Date: Thu, 13 Jun 2019 09:29:57 +0200	[thread overview]
Message-ID: <752d7e84-a0cf-2304-adb8-1446fe0cf418@ironai.com> (raw)
In-Reply-To: <9c7934d0-a234-4020-9227-08f18f150846@urlichs.de>


> we have the same problem here, although our allowed IP ranges should be
> 0.0.0.0/0 for all peers.
> We have OSPF traffic on the wireguard links so it should be task of the
> Kernel's routing table to decide where to send what.

This is not possible with a layer 3 tunnel as the kernel routing table only
knows which route goes to which interface.
I'm working on a layer 2 WireGuard version, but due to lack of funding and free-time
it is not in a state in which I'd like to release it.

As already stated there is still the possibility to use a separate
WireGuard interface per peer or let OSPF set WireGuard's peer's routes which
requires a modification of the OSPF daemon.

On 07.06.19 12:07, Matthias Urlichs wrote:> On 07.06.19 10:05, Ivan Labáth wrote:
>> As per the original question, I do find it strange, that a transient
>> modification of a peer can remove routes from another peer. Also
>> discarding routes in general, even more so when done silently.
>
> It might be helpful to have an option that disallows (silently)
> replacing another peer's route.

As far as I understand, this should not happen at all as overlapping peers
should not be allowed as this breaks cryptokey-routing.

Regards,

Vincent Wiemann
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  reply	other threads:[~2019-06-18 15:20 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-06 21:08 Aleksa Sarai
2019-05-11 15:19 ` Henning Reich
2019-05-11 17:11   ` Aleksa Sarai
2019-05-25 18:39 ` Paul Zillmann
2019-06-06 10:09   ` Toke Høiland-Jørgensen
2019-06-07  8:05     ` Ivan Labáth
2019-06-07 10:07       ` Matthias Urlichs
2019-06-13  7:29         ` Vincent Wiemann [this message]
2019-06-07 23:58     ` Paul Zillmann
2019-06-08  7:32   ` Markus Grundmann

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