From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: toke@toke.dk Received: from krantz.zx2c4.com (localhost [127.0.0.1]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 94895af8 for ; Wed, 6 Dec 2017 12:26:37 +0000 (UTC) Received: from mail.toke.dk (mail.toke.dk [52.28.52.200]) by krantz.zx2c4.com (ZX2C4 Mail Server) with ESMTP id 5b0b876a for ; Wed, 6 Dec 2017 12:26:37 +0000 (UTC) Date: Wed, 06 Dec 2017 13:33:23 +0100 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Subject: Re: Babel over wireguard To: Ryan Whelan , WireGuard mailing list From: =?ISO-8859-1?Q?Toke_H=F8iland-J=F8rgensen?= Message-ID: List-Id: Development discussion of WireGuard List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 6 December 2017 13:07:56 CET, Ryan Whelan wrote: >I'm looking to run babel over wireguard links and running into issues=2E= =20 >I >seem to be unable to get Bird or the reference implementation of Babel >to >bind to any wireguard interfaces=2E Is this a known issue? or has anyone >found a config that works? You need to manually add link-local IPs (fe80:: something) to the wireguar= d interface=2E Also, since wireguard doesn't support multicast it is only l= ikely to work on point-to-point links with AllowedIPs set to ::/0 (or somet= hing else that includes the Babel multicast address)=2E -Toke