From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <5502CF6D.3030408@meshcoding.com> Date: Fri, 13 Mar 2015 12:52:13 +0100 From: Antonio Quartulli MIME-Version: 1.0 References: In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="klgOHOrQV7oo0c5TQNAnhri51n1MsQAf5" Subject: Re: [B.A.T.M.A.N.] DAT broken in 2014.4.0? Reply-To: The list for a Better Approach To Mobile Ad-hoc Networking List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: The list for a Better Approach To Mobile Ad-hoc Networking This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --klgOHOrQV7oo0c5TQNAnhri51n1MsQAf5 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Andreas, so far we don't have any known DAT regression in 2014.4.0. Could you please provide a more detailed description about your setup including how the nodes have their bridges configured and what interfaces have been added to batman-adv? Thanks! On 13/03/15 08:28, Andreas Pape wrote: > Is there a known issue conerning the DAT functionality in batman-adv=20 > 2014.4.0? >=20 > I have got a problem with looping ARP packets / multiplication of ARP=20 > packets causing ARP storms in a setup with enabled DAT and BLA. My setu= p=20 > consists of 6 mesh nodes of which 3 are connected to the same backbone = > network. I connected a PC to the backbone which has an open ssh connect= ion=20 > to one ot the mesh nodes not connected to the backbone network directly= =2E=20 > Using arp -d to delete the ARP cache of the Windows PC forces the PC to= =20 > send an ARP request to the mesh node used for the ssh session. I can th= en=20 > see multiple copies of that ARP request in the backbone in a wireshark = > recording and also multiple ARP replies from the mesh node.=20 > Sometimes also BLA gratuitous ARP telegrams seem to be looping, but it'= s=20 > easier to force this behaviour with regular ARPs (via arp -d on a PC). = > Non-ARP telegrams don't seem to be affected and except the waste of=20 > bandwith in the mesh and backbone I don't have problems with normal=20 > network communication in the mesh. >=20 > I could provide the mentioned wireshark recordings made in the backbone= =20 > network with a switch using port mirroring if someone explains how to=20 > provide such a file to the mailing list (I guess simple attachments are= =20 > not allowed?). >=20 > If I disable DAT, everything looks fine again, i.e. no duplicated ARP=20 > telegrams anymore (except for a few ARP replies from the mesh node whic= h=20 > are received twice, which could be a race for claiming the device?).. >=20 > Regards, > Andreas >=20 >=20 > .................................................................. > PHOENIX CONTACT ELECTRONICS GmbH >=20 > Sitz der Gesellschaft / registered office of the company: 31812 Bad Pyr= mont > USt-Id-Nr.: DE811742156 > Amtsgericht Hannover HRB 100528 / district court Hannover HRB 100528 > Gesch=C3=A4ftsf=C3=BChrer / Executive Board: Roland Bent, Dr. Martin He= ubeck > ___________________________________________________________________ > Diese E-Mail enth=C3=A4lt vertrauliche und/oder rechtlich gesch=C3=BCtz= te Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-= Mail irrt=C3=BCmlich erhalten haben, informieren Sie bitte sofort den Abs= ender und vernichten Sie diese Mail. Das unerlaubte Kopieren, jegliche an= derweitige Verwendung sowie die unbefugte Weitergabe dieser Mail ist nich= t gestattet. > -----------------------------------------------------------------------= ----------------------------- > This e-mail may contain confidential and/or privileged information. If = you are not the intended recipient (or have received this e-mail in error= ) please notify the sender immediately and destroy this e-mail. Any unaut= horized copying, disclosure, distribution or other use of the material or= parts thereof is strictly forbidden. > ___________________________________________________________________ >=20 --=20 Antonio Quartulli --klgOHOrQV7oo0c5TQNAnhri51n1MsQAf5 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJVAs9wAAoJEJgn97Bh2u9eemIP/3G1BQiURgZTAZTAQqA2c5q1 lGMkJI9Xe5E+5z3v1uVo0Bo5dgOShpDOQpbTn0bz2wbpi5p2S8YWNoGBRQn0Ope3 E31R1mytQXFfxop7XYRysH8CldIIsoEKaP7mhIsw72y8YCVNJBrF+rMxhMd26Dx1 YqSsFhnS8YAeeEDzb2g03ImBOknc2Hil25Dko8VmQngx4ygbKGeB3hJTGxsnfTwh H9g3+/B7JgOyn0GnqRJjgIaVDaVNC5iGT+VFJ3B2V/oSIqTg2GiVnayiUV29H0WP zwKK9FoLu2PZ1ujCm4bzFqLInuMy+aYq72nNEL88YRgd5vM3Ti+OQEfpMvZuACJW 1j0J5geJgQ01zJGbn8gZb5x2jKW4Kda6B1Ka1/u/GGDl11nOB1t3qy+3wNp9D3dB zJj10LZWwHYbf0gWSBwh61HwSyQzcXseci+GcGs21LiWRaBPZD1fonUxq7CEvapU 5PF0ieeJPffyAXklHl46YpG/BlmWbbmQKFXOd0InVbtcCAk2Cbq2ceZ2infdiZox AQq0xgVrkZfU+kLRZt5iXL40sTNeEHUJEJIvoK5XY7+g/HKpPXzaIZPrzUt/bSXn 3x0OkXTqq8MG4uhySz1qqYOdQ3y3oFZmN46iCWhgUs5je0qrgSioWZ6wOfbiqdJY 5otiL/knlSehm9hwHp9m =6qat -----END PGP SIGNATURE----- --klgOHOrQV7oo0c5TQNAnhri51n1MsQAf5--