---------- Forwarded message ---------- From: Wayne Abroue plettpc@gmail.com Date: Sun, Nov 6, 2011 at 5:46 PM Subject: Re: [B.A.T.M.A.N.] MTU issue To: Marek Lindner lindner_marek@yahoo.de
Hi Marek
Thank you for answering, I am sorry I did not supply more info as I had already moved to a older release and everything just worked. I have 35 units all running on my mesh with bat-adv and all are working quite fine.
However using the latest trunk Openwrt, batman-adv it simply does not communicate via the bat0 interface.
bat0 is up, batctl confirms correct interface, MTU set at 1527 or 1528 or even a touch higher still does not produce batctl pings or originator lists.
Thus I was wondering if anybody has had the same problem, to assist me compiling WRT trunk with a older version, I tried the Wiki procedure for older version editing makefile to 2010.2.0 which produced a error , " can;t remove /usr/sbin/batcl ;permissions at the build stage.
Any help would be appreciated,
Wayne
On Sun, Nov 6, 2011 at 3:57 PM, Marek Lindner lindner_marek@yahoo.de wrote:
Hi,
I had the same issue previously, but 1528 did not do it. I have since changed build on that unit and can't remember the actual value I used, But it was larger.
All I did was increase the value until the warning disappeared, and everything started working as advertised.
what do you mean with "working as advertised" ? It should work even if you get this warning. All it does is fragmenting your traffic.
Setting the MTU to 1528 works for me. Without providing more information about your setup and giving us the number which seemingly "fixed" it for you nobody can help you.
Regards, Marek