tinc suddenly stops working on mac osx

[Guus Sliepen]

On Thu, Jan 24, 2013 at 12:08:58AM +0100, Remy wrote:

> I am having a working vpn with tinc in switch mode.
> But today one node running tinc on OSX (10.8.2) has stopped working, but I have no clue why this happens.
> I would appreciate any help on this issue.
[...]
> 2) tail -f /var/log/syslog | grep tap0
> 
> Jan 23 23:51:21 banafshe kernel[0]: tap0: attached with 1 suspended link-layer multicast membership(s)
> Jan 23 23:51:21 banafshe kernel[0]: tap0: failed to restore 1 suspended link-layer multicast membership(s) (err=102)
> Jan 23 23:51:21 banafshe kernel[0]: tuntap: Fixing address family for tap0

Hm, it looks like this is a bug in the tuntaposx driver, see:

http://sourceforge.net/p/tuntaposx/bugs/14/

If you set the MAC address of the tap interface in the tinc-up script, make
sure the interface is down before you do that, bring it up afterwards. The
comments in the above bug report suggest restarting the DHCP client daemon
(after starting tinc), or you could try the experimental tuntaposx driver:

http://sourceforge.net/p/tuntaposx/bugs/_discuss/thread/78f8f847/2665/attachment/tuntap_20120707-experimental.tar.gz

Perhaps it is best to try the experimental tuntap driver, if that works we
should let Mattias Nissler know.

-- 
Met vriendelijke groet / with kind regards,
     Guus Sliepen <guus at tinc-vpn.org>
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